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Pegmatite dikes Stock Photos and Images
Close up of canyon wall showing exposed precambrian gneiss, schist and pegmatite dikes, Black Canyon of the Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-close-up-of-canyon-wall-showing-exposed-precambrian-gneiss-schist-163717112.htmlRMKE9XRM–Close up of canyon wall showing exposed precambrian gneiss, schist and pegmatite dikes, Black Canyon of the Gunnison National Park, Colorado, USA
Mica Pegmatite, Gatineau, Quebec Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mica-pegmatite-gatineau-quebec-image344395288.htmlRM2B08FKM–Mica Pegmatite, Gatineau, Quebec
Pegmatite dikes in schists rocks in Cape Creus, Girona, Catalonia, Spain. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pegmatite-dikes-in-schists-rocks-in-cape-creus-girona-catalonia-spain-image560045353.htmlRF2RF47FN–Pegmatite dikes in schists rocks in Cape Creus, Girona, Catalonia, Spain.
Sunrise highlights pegmatite dikes (bands) at Dragon Point, Black Canyon of the Gunnison National Park, near Montrose, Colorado. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sunrise-highlights-pegmatite-dikes-bands-at-dragon-point-black-canyon-of-the-gunnison-national-park-near-montrose-colorado-image622751379.htmlRM2Y54NMK–Sunrise highlights pegmatite dikes (bands) at Dragon Point, Black Canyon of the Gunnison National Park, near Montrose, Colorado.
Pegmatite dikes (igneous rock) in Cap Creus Natural Park, Girona province, Catalonia, Spain. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pegmatite-dikes-igneous-rock-in-cap-creus-natural-park-girona-province-catalonia-spain-image571806588.htmlRF2T6813T–Pegmatite dikes (igneous rock) in Cap Creus Natural Park, Girona province, Catalonia, Spain.
Cliffs with pegmatite dikes at Devil's Lookout on the south rim of the Black Canyon of the Gunnison Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cliffs-with-pegmatite-dikes-at-devils-lookout-on-the-south-rim-of-the-black-canyon-of-the-gunnison-image592097517.htmlRF2WB8ABW–Cliffs with pegmatite dikes at Devil's Lookout on the south rim of the Black Canyon of the Gunnison
background detail of the painted wall rock cliff at the Black Canyon of the Gunnison Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-background-detail-of-the-painted-wall-rock-cliff-at-the-black-canyon-104210303.htmlRFG1F58F–background detail of the painted wall rock cliff at the Black Canyon of the Gunnison
The Black Canyon of the Gunnison with pegmatite dikes in the rock seen from Chasm View on the north rim Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-black-canyon-of-the-gunnison-with-pegmatite-dikes-in-the-rock-seen-from-chasm-view-on-the-north-rim-image592902865.htmlRF2WCH1J9–The Black Canyon of the Gunnison with pegmatite dikes in the rock seen from Chasm View on the north rim
Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pegmatite-veins-on-a-schist-block-cap-creus-natural-park-girona-province-catalonia-spain-image570495312.htmlRF2T448GG–Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain.
1177 Pegmatite Dikes Orange Grove PlateXXIX Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1177-pegmatite-dikes-orange-grove-platexxix-keyes-1895-image213538671.htmlRMPBBEN3–1177 Pegmatite Dikes Orange Grove PlateXXIX Keyes 1895
Pegmatite Dikes Orange Grove PlateXXX Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-pegmatite-dikes-orange-grove-platexxx-keyes-1895-163305054.htmlRMKDK57A–Pegmatite Dikes Orange Grove PlateXXX Keyes 1895
The Painted Wall at sunrise, Black Canyon of the Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-the-painted-wall-at-sunrise-black-canyon-of-the-gunnison-national-33513516.htmlRFBXEJR8–The Painted Wall at sunrise, Black Canyon of the Gunnison National Park, Colorado, USA
Gunnison River gorge looking down on the river which carved the gorge out of the high cliffs. Rapids are shown in lower half Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-gunnison-river-gorge-looking-down-on-the-river-which-carved-the-gorge-129128206.htmlRFHE289J–Gunnison River gorge looking down on the river which carved the gorge out of the high cliffs. Rapids are shown in lower half
The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-painted-wall-of-the-black-canyon-in-gunnison-national-park-colorado-usa-image613423289.htmlRF2XHYRJH–The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA
The ore deposits of Utah . A. WEST FRONT OF WASATCH RANGE IN SIERRA MADRE DISTRICT, SHOWING GEOLOGIC FORMATIONS.. B. UNCONFORMITY SHOWING PRE-CAMBRIAN GRANITE AND PEGMATITE DIKES CUT OFF BY BASAL CAMBRIAN CONGLOMERATE, SIERRA MADRE DISTRICT. V. S. CEOLOOrCAL SURVEY PROFESSIONAL PAPER 111 PLATE XXVI Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-ore-deposits-of-utah-a-west-front-of-wasatch-range-in-sierra-madre-district-showing-geologic-formations-b-unconformity-showing-pre-cambrian-granite-and-pegmatite-dikes-cut-off-by-basal-cambrian-conglomerate-sierra-madre-district-v-s-ceoloorcal-survey-professional-paper-111-plate-xxvi-image338077278.htmlRM2AJ0N0E–The ore deposits of Utah . A. WEST FRONT OF WASATCH RANGE IN SIERRA MADRE DISTRICT, SHOWING GEOLOGIC FORMATIONS.. B. UNCONFORMITY SHOWING PRE-CAMBRIAN GRANITE AND PEGMATITE DIKES CUT OFF BY BASAL CAMBRIAN CONGLOMERATE, SIERRA MADRE DISTRICT. V. S. CEOLOOrCAL SURVEY PROFESSIONAL PAPER 111 PLATE XXVI
Close up of canyon wall showing pegmatite dikes running through precambrian gneiss and schist, Black Canyon of the Gunnison National Park, Colorado, U Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-close-up-of-canyon-wall-showing-pegmatite-dikes-running-through-precambrian-163564620.htmlRMKE309G–Close up of canyon wall showing pegmatite dikes running through precambrian gneiss and schist, Black Canyon of the Gunnison National Park, Colorado, U
Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pegmatite-veins-on-a-schist-block-cap-creus-natural-park-girona-province-catalonia-spain-image570495311.htmlRF2T448GF–Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain.
1177 Pegmatite Dikes Orange Grove PlateXXX Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1177-pegmatite-dikes-orange-grove-platexxx-keyes-1895-image213538668.htmlRMPBBEN0–1177 Pegmatite Dikes Orange Grove PlateXXX Keyes 1895
Pegmatite Dikes Orange Grove PlateXXIX Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-pegmatite-dikes-orange-grove-platexxix-keyes-1895-163305051.htmlRMKDK577–Pegmatite Dikes Orange Grove PlateXXIX Keyes 1895
The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-painted-wall-of-the-black-canyon-in-gunnison-national-park-colorado-usa-image611679623.htmlRF2XF4BGR–The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA
The ore deposits of Utah . B. UNCONFORMITY SHOWING PRE-CAMBRIAN GRANITE AND PEGMATITE DIKES CUT OFF BY BASAL CAMBRIAN CONGLOMERATE, SIERRA MADRE DISTRICT. V. S. CEOLOOrCAL SURVEY PROFESSIONAL PAPER 111 PLATE XXVI. A. UNDULATOKY VERTICAL FISSURES (TIGHT) AND HORIZONTAL FISSURES WITH QUARTZ AND CHLORITE IN PRE-CAMBRIAN GRANITE, SIERRA MADRE DISTRICT. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-ore-deposits-of-utah-b-unconformity-showing-pre-cambrian-granite-and-pegmatite-dikes-cut-off-by-basal-cambrian-conglomerate-sierra-madre-district-v-s-ceoloorcal-survey-professional-paper-111-plate-xxvi-a-undulatoky-vertical-fissures-tight-and-horizontal-fissures-with-quartz-and-chlorite-in-pre-cambrian-granite-sierra-madre-district-image338076937.htmlRM2AJ0MG9–The ore deposits of Utah . B. UNCONFORMITY SHOWING PRE-CAMBRIAN GRANITE AND PEGMATITE DIKES CUT OFF BY BASAL CAMBRIAN CONGLOMERATE, SIERRA MADRE DISTRICT. V. S. CEOLOOrCAL SURVEY PROFESSIONAL PAPER 111 PLATE XXVI. A. UNDULATOKY VERTICAL FISSURES (TIGHT) AND HORIZONTAL FISSURES WITH QUARTZ AND CHLORITE IN PRE-CAMBRIAN GRANITE, SIERRA MADRE DISTRICT.
Pegmatite (lighter color) running through Precambrian gneiss and schist, Black Canyon of the Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-pegmatite-lighter-color-running-through-precambrian-gneiss-and-schist-163564587.htmlRMKE308B–Pegmatite (lighter color) running through Precambrian gneiss and schist, Black Canyon of the Gunnison National Park, Colorado, USA
Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pegmatite-veins-on-a-schist-block-cap-creus-natural-park-girona-province-catalonia-spain-image570495317.htmlRF2T448GN–Pegmatite veins on a schist block. Cap Creus Natural Park, Girona province, Catalonia, Spain.
1177 Pegmatite Dikes Orange Grove PlateXXVIII Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1177-pegmatite-dikes-orange-grove-platexxviii-keyes-1895-image213538669.htmlRMPBBEN1–1177 Pegmatite Dikes Orange Grove PlateXXVIII Keyes 1895
Pegmatite Dikes Orange Grove PlateXXVIII Keyes 1895 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-pegmatite-dikes-orange-grove-platexxviii-keyes-1895-163305052.htmlRMKDK578–Pegmatite Dikes Orange Grove PlateXXVIII Keyes 1895
The Gunnison River and Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-gunnison-river-and-painted-wall-of-the-black-canyon-in-gunnison-national-park-colorado-usa-image624007819.htmlRF2Y7609F–The Gunnison River and Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA
Annual report . rmally large. The feldspar-porphyry dikeswere cut by small dikes of diabase and trap, and were consequently older than theselatter. Pegmatite Dikes Pegmatite dikes occurred in great profusion in the biotite, and garnetiferousbiotite-gneisses, syenites and granites. These were often very large, consistingalmost entirely of feldspar and a little quartz; chlorite was present in considerablequantities where these dikes intruded the more basic formations. Batholitlis Batholitic intrusions of granite and felsite were seen, Imt were not of commonoccurrence. A considerable area of a ve Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annual-report-rmally-large-the-feldspar-porphyry-dikeswere-cut-by-small-dikes-of-diabase-and-trap-and-were-consequently-older-than-theselatter-pegmatite-dikes-pegmatite-dikes-occurred-in-great-profusion-in-the-biotite-and-garnetiferousbiotite-gneisses-syenites-and-granites-these-were-often-very-large-consistingalmost-entirely-of-feldspar-and-a-little-quartz-chlorite-was-present-in-considerablequantities-where-these-dikes-intruded-the-more-basic-formations-batholitlis-batholitic-intrusions-of-granite-and-felsite-were-seen-imt-were-not-of-commonoccurrence-a-considerable-area-of-a-ve-image342747158.htmlRM2AWHDDX–Annual report . rmally large. The feldspar-porphyry dikeswere cut by small dikes of diabase and trap, and were consequently older than theselatter. Pegmatite Dikes Pegmatite dikes occurred in great profusion in the biotite, and garnetiferousbiotite-gneisses, syenites and granites. These were often very large, consistingalmost entirely of feldspar and a little quartz; chlorite was present in considerablequantities where these dikes intruded the more basic formations. Batholitlis Batholitic intrusions of granite and felsite were seen, Imt were not of commonoccurrence. A considerable area of a ve
Tourists taking in the view of Black River and Black Canyon of the Gunnison, Black Canyon of the Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-tourists-taking-in-the-view-of-black-river-and-black-canyon-of-the-163564599.htmlRMKE308R–Tourists taking in the view of Black River and Black Canyon of the Gunnison, Black Canyon of the Gunnison National Park, Colorado, USA
The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-painted-wall-of-the-black-canyon-in-gunnison-national-park-colorado-usa-image615912786.htmlRF2XP1716–The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA
Annual report . of Xewposton the Abitibi river. Feldspar-Porphyry Dikes Between Lobstick portage and Clay Falls portage, on the Abitibi river, severallarge dikes of feldspar-porphyry were observed. The feldspar phenocrysts were. ^lattagami river, above the Long portage, during a low water period. of a plagioelase variety and were abnormally large. The feldspar-porphyry dikeswere cut by small dikes of diabase and trap, and were consequently older than theselatter. Pegmatite Dikes Pegmatite dikes occurred in great profusion in the biotite, and garnetiferousbiotite-gneisses, syenites and granites Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annual-report-of-xewposton-the-abitibi-river-feldspar-porphyry-dikes-between-lobstick-portage-and-clay-falls-portage-on-the-abitibi-river-severallarge-dikes-of-feldspar-porphyry-were-observed-the-feldspar-phenocrysts-were-lattagami-river-above-the-long-portage-during-a-low-water-period-of-a-plagioelase-variety-and-were-abnormally-large-the-feldspar-porphyry-dikeswere-cut-by-small-dikes-of-diabase-and-trap-and-were-consequently-older-than-theselatter-pegmatite-dikes-pegmatite-dikes-occurred-in-great-profusion-in-the-biotite-and-garnetiferousbiotite-gneisses-syenites-and-granites-image342747323.htmlRM2AWHDKR–Annual report . of Xewposton the Abitibi river. Feldspar-Porphyry Dikes Between Lobstick portage and Clay Falls portage, on the Abitibi river, severallarge dikes of feldspar-porphyry were observed. The feldspar phenocrysts were. ^lattagami river, above the Long portage, during a low water period. of a plagioelase variety and were abnormally large. The feldspar-porphyry dikeswere cut by small dikes of diabase and trap, and were consequently older than theselatter. Pegmatite Dikes Pegmatite dikes occurred in great profusion in the biotite, and garnetiferousbiotite-gneisses, syenites and granites
Black River runs through the Black Canyon of the Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-black-river-runs-through-the-black-canyon-of-the-gunnison-national-163564582.htmlRMKE3086–Black River runs through the Black Canyon of the Gunnison National Park, Colorado, USA
The Gunnison river in the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-gunnison-river-in-the-black-canyon-in-gunnison-national-park-colorado-usa-image620961313.htmlRF2Y276DN–The Gunnison river in the Black Canyon in Gunnison National Park, Colorado, USA
The ore deposits of Utah . onounced increasein iron. The Granite Range contains but one largestock, which is distinctly granitic and, with theabundant pegmatite (pegmatite dikes are esti-mated to occupy 20 per cent of the exposure 1 Iddings, J. P., Igneous rocks, vol. 1, p. 10, 1909. GEOLOGY. 97 over large areas), is probably the most siliceousand most highly alkaline large intrusive bodyin the State. The Raft River Range stock issimilar in composition to the stock of the GraniteRange. The mam intrusive stock of the TinticRange is similar in composition to those of theBingham and Park City dis Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-ore-deposits-of-utah-onounced-increasein-iron-the-granite-range-contains-but-one-largestock-which-is-distinctly-granitic-and-with-theabundant-pegmatite-pegmatite-dikes-are-esti-mated-to-occupy-20-per-cent-of-the-exposure-1-iddings-j-p-igneous-rocks-vol-1-p-10-1909-geology-97-over-large-areas-is-probably-the-most-siliceousand-most-highly-alkaline-large-intrusive-bodyin-the-state-the-raft-river-range-stock-issimilar-in-composition-to-the-stock-of-the-graniterange-the-mam-intrusive-stock-of-the-tinticrange-is-similar-in-composition-to-those-of-thebingham-and-park-city-dis-image338094425.htmlRM2AJ1ETW–The ore deposits of Utah . onounced increasein iron. The Granite Range contains but one largestock, which is distinctly granitic and, with theabundant pegmatite (pegmatite dikes are esti-mated to occupy 20 per cent of the exposure 1 Iddings, J. P., Igneous rocks, vol. 1, p. 10, 1909. GEOLOGY. 97 over large areas), is probably the most siliceousand most highly alkaline large intrusive bodyin the State. The Raft River Range stock issimilar in composition to the stock of the GraniteRange. The mam intrusive stock of the TinticRange is similar in composition to those of theBingham and Park City dis
The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-painted-wall-of-the-black-canyon-in-gunnison-national-park-colorado-usa-image616218924.htmlRF2XPF5EM–The Painted Wall of the Black Canyon in Gunnison National Park, Colorado, USA
![. Bulletin of the Geological Society of America. Geology. Figure 1.—Pegmatite Dike Cutting blue granite in Davis quarries, 3 miles north of Fredericksburg, Virginia. Figure 2.—Pegmatite Veins cutting Granite, Donald Quarry, west of Richmond PEGMATITE DIKES AND VEINS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photo](https://c8.alamy.com/comp/RGFFK5/bulletin-of-the-geological-society-of-america-geology-figure-1pegmatite-dike-cutting-blue-granite-in-davis-quarries-3-miles-north-of-fredericksburg-virginia-figure-2pegmatite-veins-cutting-granite-donald-quarry-west-of-richmond-pegmatite-dikes-and-veins-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-geological-society-of-america-new-york-the-society-RGFFK5.jpg ". Bulletin of the Geological Society of America. Geology. Figure 1.—Pegmatite Dike Cutting blue granite in Davis quarries, 3 miles north of Fredericksburg, Virginia. Figure 2.—Pegmatite Veins cutting Granite, Donald Quarry, west of Richmond PEGMATITE DIKES AND VEINS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photo")
. Bulletin of the Geological Society of America. Geology. Figure 1.—Pegmatite Dike Cutting blue granite in Davis quarries, 3 miles north of Fredericksburg, Virginia. Figure 2.—Pegmatite Veins cutting Granite, Donald Quarry, west of Richmond PEGMATITE DIKES AND VEINS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-geological-society-of-america-geology-figure-1pegmatite-dike-cutting-blue-granite-in-davis-quarries-3-miles-north-of-fredericksburg-virginia-figure-2pegmatite-veins-cutting-granite-donald-quarry-west-of-richmond-pegmatite-dikes-and-veins-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-geological-society-of-america-new-york-the-society-image233910857.htmlRMRGFFK5–. Bulletin of the Geological Society of America. Geology. Figure 1.—Pegmatite Dike Cutting blue granite in Davis quarries, 3 miles north of Fredericksburg, Virginia. Figure 2.—Pegmatite Veins cutting Granite, Donald Quarry, west of Richmond PEGMATITE DIKES AND VEINS. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society]
Tourists at a view point overlooking the Black Canyon Painted Wall in Gunnison National Park, Colorado, USA Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/tourists-at-a-view-point-overlooking-the-black-canyon-painted-wall-in-gunnison-national-park-colorado-usa-image616218977.htmlRF2XPF5GH–Tourists at a view point overlooking the Black Canyon Painted Wall in Gunnison National Park, Colorado, USA
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Fir,. I. Pcginatitu dikes near Peruiuitus, Paialuba, willi labk'lainl. indl >al i!' capped Ijy quartzitc, in the distance.. Fk;. 2. Pegmatite dikes near Jardiiii de Serido, Rio Grande do Norte; granite hills in the distance.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Museum; Carnegie Museum of Natural Hi Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annals-of-the-carnegie-museum-carnegie-museum-carnegie-museum-of-natural-history-natural-history-fir-i-pcginatitu-dikes-near-peruiuitus-paialuba-willi-labklainl-indl-gtal-i!-capped-ijy-quartzitc-in-the-distance-fk-2-pegmatite-dikes-near-jardiiii-de-serido-rio-grande-do-norte-granite-hills-in-the-distance-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-carnegie-museum-carnegie-museum-of-natural-hi-image236512548.htmlRMRMP24M–. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Fir,. I. Pcginatitu dikes near Peruiuitus, Paialuba, willi labk'lainl. indl >al i!' capped Ijy quartzitc, in the distance.. Fk;. 2. Pegmatite dikes near Jardiiii de Serido, Rio Grande do Norte; granite hills in the distance.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Carnegie Museum; Carnegie Museum of Natural Hi
![. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. LIST OF PLATES. I. Diploiiiystus goodi Eastman. II. Map illustrating sources of material discussed by N. M. Grier in " jMorpliological Features o£ Mussel-Shells." III. Map giving localities mentioned by N. M. Grier in " Mor- phological Features of Mussel-Shells." IV & V. Maps of parts of northeastern Brazil. VI. Fig. I. Pegmatite dikes near Periquitos, Parahyba, Brazil, with tableland probably capped by quartzite in the dis- tance. Fig. 2. Pegmatite dikes near Jardim d Stock Photo](https://c8.alamy.com/comp/RMTF3H/annals-of-the-carnegie-museum-carnegie-museum-carnegie-museum-of-natural-history-natural-history-list-of-plates-i-diploiiiystus-goodi-eastman-ii-map-illustrating-sources-of-material-discussed-by-n-m-grier-in-quot-jmorpliological-features-o-mussel-shellsquot-iii-map-giving-localities-mentioned-by-n-m-grier-in-quot-mor-phological-features-of-mussel-shellsquot-iv-amp-v-maps-of-parts-of-northeastern-brazil-vi-fig-i-pegmatite-dikes-near-periquitos-parahyba-brazil-with-tableland-probably-capped-by-quartzite-in-the-dis-tance-fig-2-pegmatite-dikes-near-jardim-d-RMTF3H.jpg ". Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. LIST OF PLATES. I. Diploiiiystus goodi Eastman. II. Map illustrating sources of material discussed by N. M. Grier in " jMorpliological Features o£ Mussel-Shells." III. Map giving localities mentioned by N. M. Grier in " Mor- phological Features of Mussel-Shells." IV & V. Maps of parts of northeastern Brazil. VI. Fig. I. Pegmatite dikes near Periquitos, Parahyba, Brazil, with tableland probably capped by quartzite in the dis- tance. Fig. 2. Pegmatite dikes near Jardim d Stock Photo")
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. LIST OF PLATES. I. Diploiiiystus goodi Eastman. II. Map illustrating sources of material discussed by N. M. Grier in " jMorpliological Features o£ Mussel-Shells." III. Map giving localities mentioned by N. M. Grier in " Mor- phological Features of Mussel-Shells." IV & V. Maps of parts of northeastern Brazil. VI. Fig. I. Pegmatite dikes near Periquitos, Parahyba, Brazil, with tableland probably capped by quartzite in the dis- tance. Fig. 2. Pegmatite dikes near Jardim d Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annals-of-the-carnegie-museum-carnegie-museum-carnegie-museum-of-natural-history-natural-history-list-of-plates-i-diploiiiystus-goodi-eastman-ii-map-illustrating-sources-of-material-discussed-by-n-m-grier-in-quot-jmorpliological-features-o-mussel-shellsquot-iii-map-giving-localities-mentioned-by-n-m-grier-in-quot-mor-phological-features-of-mussel-shellsquot-iv-amp-v-maps-of-parts-of-northeastern-brazil-vi-fig-i-pegmatite-dikes-near-periquitos-parahyba-brazil-with-tableland-probably-capped-by-quartzite-in-the-dis-tance-fig-2-pegmatite-dikes-near-jardim-d-image236566613.htmlRMRMTF3H–. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. LIST OF PLATES. I. Diploiiiystus goodi Eastman. II. Map illustrating sources of material discussed by N. M. Grier in " jMorpliological Features o£ Mussel-Shells." III. Map giving localities mentioned by N. M. Grier in " Mor- phological Features of Mussel-Shells." IV & V. Maps of parts of northeastern Brazil. VI. Fig. I. Pegmatite dikes near Periquitos, Parahyba, Brazil, with tableland probably capped by quartzite in the dis- tance. Fig. 2. Pegmatite dikes near Jardim d
The geology of Ascutney Mountain, Vermont . Monchique,Portugal. APIjITIC dikes CUTTIIS^G THJE SYEIflTES. Three kinds of acid dikes have been found cutting the various sye-nites of the area. Two of these are intimately related to the stockphases; the third has variant features. It may be noted that thereis an unusual lack of pegmatite veins both in the syenites and else-where about Ascutney, PAISANITE DIKE CUTTING THE MAIN STOCK. On the logging road running up from a sawmill on the northwestslope of Ascutney Mountain proper, toward the main summit, a dikewas discovered in the dark-green granula Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-geology-of-ascutney-mountain-vermont-monchiqueportugal-apijitic-dikes-cuttiisg-thje-syeifltes-three-kinds-of-acid-dikes-have-been-found-cutting-the-various-sye-nites-of-the-area-two-of-these-are-intimately-related-to-the-stockphases-the-third-has-variant-features-it-may-be-noted-that-thereis-an-unusual-lack-of-pegmatite-veins-both-in-the-syenites-and-else-where-about-ascutney-paisanite-dike-cutting-the-main-stock-on-the-logging-road-running-up-from-a-sawmill-on-the-northwestslope-of-ascutney-mountain-proper-toward-the-main-summit-a-dikewas-discovered-in-the-dark-green-granula-image338095655.htmlRM2AJ1GCR–The geology of Ascutney Mountain, Vermont . Monchique,Portugal. APIjITIC dikes CUTTIIS^G THJE SYEIflTES. Three kinds of acid dikes have been found cutting the various sye-nites of the area. Two of these are intimately related to the stockphases; the third has variant features. It may be noted that thereis an unusual lack of pegmatite veins both in the syenites and else-where about Ascutney, PAISANITE DIKE CUTTING THE MAIN STOCK. On the logging road running up from a sawmill on the northwestslope of Ascutney Mountain proper, toward the main summit, a dikewas discovered in the dark-green granula
Bulletin . B. TYPICAL GRAPHIC GRANITES, SHOWING VARIATION IN SIZE OF CRYSTALS.. C. APPEARANCE OF CONES AFTER DEFORMATION. FELDSPAR DISTRICTS. 11 minerals that no miner would attempt to work the lenses for theirfeldspar alone. In the search for gems, which are found chiefly inthis type of formation, much feldspar has been exposed and fromtime to time this has been removed and has added considerably tothe feldspar production of the district. The feldspar of thesedeposits is a pale buff microcline and a milk-white albite. OTHER DEPOSITS. There are many small dikes of pegmatite in the State of Mai Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-b-typical-graphic-granites-showing-variation-in-size-of-crystals-c-appearance-of-cones-after-deformation-feldspar-districts-11-minerals-that-no-miner-would-attempt-to-work-the-lenses-for-theirfeldspar-alone-in-the-search-for-gems-which-are-found-chiefly-inthis-type-of-formation-much-feldspar-has-been-exposed-and-fromtime-to-time-this-has-been-removed-and-has-added-considerably-tothe-feldspar-production-of-the-district-the-feldspar-of-thesedeposits-is-a-pale-buff-microcline-and-a-milk-white-albite-other-deposits-there-are-many-small-dikes-of-pegmatite-in-the-state-of-mai-image340150588.htmlRM2ANB5F8–Bulletin . B. TYPICAL GRAPHIC GRANITES, SHOWING VARIATION IN SIZE OF CRYSTALS.. C. APPEARANCE OF CONES AFTER DEFORMATION. FELDSPAR DISTRICTS. 11 minerals that no miner would attempt to work the lenses for theirfeldspar alone. In the search for gems, which are found chiefly inthis type of formation, much feldspar has been exposed and fromtime to time this has been removed and has added considerably tothe feldspar production of the district. The feldspar of thesedeposits is a pale buff microcline and a milk-white albite. OTHER DEPOSITS. There are many small dikes of pegmatite in the State of Mai
Bulletin . about 12 feet.A large part of these dikes is a light cream pegmatite containing anexcessive amount of quartz and also a large amount of muscovitedistributed throughout the mass as small flakes. This part of thedike is, therefore, of doubtful value for pottery feldspar. Lenses ofbuff microcline pegmatite and lenses of pure buff microcline arepresent in large amount in both dikes. In the large dike one lens 8feet wide is exposed. This buff microcline and pegmatite is verylow in muscovite content and the pegmatite is low in quartz. Nobiotite is observed in either of the dikes, and othe Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-about-12-feeta-large-part-of-these-dikes-is-a-light-cream-pegmatite-containing-anexcessive-amount-of-quartz-and-also-a-large-amount-of-muscovitedistributed-throughout-the-mass-as-small-flakes-this-part-of-thedike-is-therefore-of-doubtful-value-for-pottery-feldspar-lenses-ofbuff-microcline-pegmatite-and-lenses-of-pure-buff-microcline-arepresent-in-large-amount-in-both-dikes-in-the-large-dike-one-lens-8feet-wide-is-exposed-this-buff-microcline-and-pegmatite-is-verylow-in-muscovite-content-and-the-pegmatite-is-low-in-quartz-nobiotite-is-observed-in-either-of-the-dikes-and-othe-image340133331.htmlRM2ANABEY–Bulletin . about 12 feet.A large part of these dikes is a light cream pegmatite containing anexcessive amount of quartz and also a large amount of muscovitedistributed throughout the mass as small flakes. This part of thedike is, therefore, of doubtful value for pottery feldspar. Lenses ofbuff microcline pegmatite and lenses of pure buff microcline arepresent in large amount in both dikes. In the large dike one lens 8feet wide is exposed. This buff microcline and pegmatite is verylow in muscovite content and the pegmatite is low in quartz. Nobiotite is observed in either of the dikes, and othe
. Transactions. Fig. 15. Fig. 16. Fig. 15.—Micro-pegmatite from a Dike in the East Mine, Firmeza. Fig. 16.—Acidic Dike, West Mine, Firmeza. Acid plagioclase with micro-pegmatitic quartz on the right. Fine-grained diorite, forming the wall rock on the left. gregate, reminding one of nothing so much as somewhat badly alteredtrachytes or bostonite dikes. Blotches of less definite igneous texturesappear as well and make the rock very puzzling for sharp determination.Probably the original diorite has been severely affected by thermal JAMES F. KEMP 19 waters, has lost its dark silicates and has chan Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/transactions-fig-15-fig-16-fig-15micro-pegmatite-from-a-dike-in-the-east-mine-firmeza-fig-16acidic-dike-west-mine-firmeza-acid-plagioclase-with-micro-pegmatitic-quartz-on-the-right-fine-grained-diorite-forming-the-wall-rock-on-the-left-gregate-reminding-one-of-nothing-so-much-as-somewhat-badly-alteredtrachytes-or-bostonite-dikes-blotches-of-less-definite-igneous-texturesappear-as-well-and-make-the-rock-very-puzzling-for-sharp-determinationprobably-the-original-diorite-has-been-severely-affected-by-thermal-james-f-kemp-19-waters-has-lost-its-dark-silicates-and-has-chan-image336681768.htmlRM2AFN50T–. Transactions. Fig. 15. Fig. 16. Fig. 15.—Micro-pegmatite from a Dike in the East Mine, Firmeza. Fig. 16.—Acidic Dike, West Mine, Firmeza. Acid plagioclase with micro-pegmatitic quartz on the right. Fine-grained diorite, forming the wall rock on the left. gregate, reminding one of nothing so much as somewhat badly alteredtrachytes or bostonite dikes. Blotches of less definite igneous texturesappear as well and make the rock very puzzling for sharp determination.Probably the original diorite has been severely affected by thermal JAMES F. KEMP 19 waters, has lost its dark silicates and has chan
. Annual report . ranite andgneiss are frequently cut by dikes of pink granite or pegmatite, many of which arenarrow. No rocks with the characteristics of the Laurentian are known that are older thanthe Grenville series, the Laurentian intruding both this series and the Keewatin. TheTemiskaming is the oldest fragmental series known in the region that is of post-Laurentian age. While both the Temiskaming and Cobalt series contain pebbles andboulders derived from the Laurentian, the former series has not been seen in contactwith the Laurentian unless it be on the southwest arm of Rabbit lake, ea Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/annual-report-ranite-andgneiss-are-frequently-cut-by-dikes-of-pink-granite-or-pegmatite-many-of-which-arenarrow-no-rocks-with-the-characteristics-of-the-laurentian-are-known-that-are-older-thanthe-grenville-series-the-laurentian-intruding-both-this-series-and-the-keewatin-thetemiskaming-is-the-oldest-fragmental-series-known-in-the-region-that-is-of-post-laurentian-age-while-both-the-temiskaming-and-cobalt-series-contain-pebbles-andboulders-derived-from-the-laurentian-the-former-series-has-not-been-seen-in-contactwith-the-laurentian-unless-it-be-on-the-southwest-arm-of-rabbit-lake-ea-image369603496.htmlRM2CD8W0T–. Annual report . ranite andgneiss are frequently cut by dikes of pink granite or pegmatite, many of which arenarrow. No rocks with the characteristics of the Laurentian are known that are older thanthe Grenville series, the Laurentian intruding both this series and the Keewatin. TheTemiskaming is the oldest fragmental series known in the region that is of post-Laurentian age. While both the Temiskaming and Cobalt series contain pebbles andboulders derived from the Laurentian, the former series has not been seen in contactwith the Laurentian unless it be on the southwest arm of Rabbit lake, ea
. Bulletin . rtly decomposed granite^, from an outcrop 100yards east of Mr. Williams house, upon assaying yielded 0.015 ounces ofgold per ton (see pp. 220-321). The sample was taken after several inchesof the partly decomposed rock had been removed in order to prevent con-tamination. Dikes of pegmatite and aplite occur cutting the granite at severalpoints on the Williams farm, and these rocks show very little if anyevidence of schistosity. One of these dikes, located about 600 yards north-east of the house, is exposed in a prospect shaft 15 feet in depth. Ithas a strike of N. 15° E. and dips n Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-rtly-decomposed-granite-from-an-outcrop-100yards-east-of-mr-williams-house-upon-assaying-yielded-0015-ounces-ofgold-per-ton-see-pp-220-321-the-sample-was-taken-after-several-inchesof-the-partly-decomposed-rock-had-been-removed-in-order-to-prevent-con-tamination-dikes-of-pegmatite-and-aplite-occur-cutting-the-granite-at-severalpoints-on-the-williams-farm-and-these-rocks-show-very-little-if-anyevidence-of-schistosity-one-of-these-dikes-located-about-600-yards-north-east-of-the-house-is-exposed-in-a-prospect-shaft-15-feet-in-depth-ithas-a-strike-of-n-15-e-and-dips-n-image370125230.htmlRM2CE4JE6–. Bulletin . rtly decomposed granite^, from an outcrop 100yards east of Mr. Williams house, upon assaying yielded 0.015 ounces ofgold per ton (see pp. 220-321). The sample was taken after several inchesof the partly decomposed rock had been removed in order to prevent con-tamination. Dikes of pegmatite and aplite occur cutting the granite at severalpoints on the Williams farm, and these rocks show very little if anyevidence of schistosity. One of these dikes, located about 600 yards north-east of the house, is exposed in a prospect shaft 15 feet in depth. Ithas a strike of N. 15° E. and dips n
![. Bulletin of the Geological Society of America. Geology. KlUlRE 2.—PEIiJIAlTI'E J)1KES Cutting Cambrian schists, near Watson's pier, west side of Narragansett l:>ay. **^>^-^j?y FiGtTKE 3.—Near View of two of the PEiiMATiTE Veins shown in Figure 2 PEGMATITE VEINS AND DIKES, AND VEIN OF BIOTITE AND GARNET. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photo](https://c8.alamy.com/comp/RGGPE4/bulletin-of-the-geological-society-of-america-geology-klulre-2peiijialtie-j1kes-cutting-cambrian-schists-near-watsons-pier-west-side-of-narragansett-lgtay-gt-jy-figttke-3near-view-of-two-of-the-peiimatite-veins-shown-in-figure-2-pegmatite-veins-and-dikes-and-vein-of-biotite-and-garnet-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-geological-society-of-america-new-york-the-society-RGGPE4.jpg ". Bulletin of the Geological Society of America. Geology. KlUlRE 2.—PEIiJIAlTI'E J)1KES Cutting Cambrian schists, near Watson's pier, west side of Narragansett l:>ay. **^>^-^j?y FiGtTKE 3.—Near View of two of the PEiiMATiTE Veins shown in Figure 2 PEGMATITE VEINS AND DIKES, AND VEIN OF BIOTITE AND GARNET. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photo")
. Bulletin of the Geological Society of America. Geology. KlUlRE 2.—PEIiJIAlTI'E J)1KES Cutting Cambrian schists, near Watson's pier, west side of Narragansett l:>ay. **^>^-^j?y FiGtTKE 3.—Near View of two of the PEiiMATiTE Veins shown in Figure 2 PEGMATITE VEINS AND DIKES, AND VEIN OF BIOTITE AND GARNET. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society] Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-geological-society-of-america-geology-klulre-2peiijialtie-j1kes-cutting-cambrian-schists-near-watsons-pier-west-side-of-narragansett-lgtay-gt-jy-figttke-3near-view-of-two-of-the-peiimatite-veins-shown-in-figure-2-pegmatite-veins-and-dikes-and-vein-of-biotite-and-garnet-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-geological-society-of-america-new-york-the-society-image233938156.htmlRMRGGPE4–. Bulletin of the Geological Society of America. Geology. KlUlRE 2.—PEIiJIAlTI'E J)1KES Cutting Cambrian schists, near Watson's pier, west side of Narragansett l:>ay. **^>^-^j?y FiGtTKE 3.—Near View of two of the PEiiMATiTE Veins shown in Figure 2 PEGMATITE VEINS AND DIKES, AND VEIN OF BIOTITE AND GARNET. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Geological Society of America. [New York : The Society]
. Bulletin of the Geological Society of America. Geology. STRUCTURAL FEATURES ALONG SAO FRANCISCO RAILWAY 71 Between Canhotinho and Angelim bosses of crystalline rocks are ex- posed here and there over the campos, and the surfaces show numerous veins of quartz and dikes of pegmatite. About 5 kilometers west of Canhotinho schists dip south at an angle of 50 degrees. A little farther west there are exposed soft bedded rocks resembling sandstones. Still farther west are schists dipping south 25 degrees west 60 degrees. Three hundred meters west of Angelim (kilometer 242.7 ; elevation, 647 meters) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-geological-society-of-america-geology-structural-features-along-sao-francisco-railway-71-between-canhotinho-and-angelim-bosses-of-crystalline-rocks-are-ex-posed-here-and-there-over-the-campos-and-the-surfaces-show-numerous-veins-of-quartz-and-dikes-of-pegmatite-about-5-kilometers-west-of-canhotinho-schists-dip-south-at-an-angle-of-50-degrees-a-little-farther-west-there-are-exposed-soft-bedded-rocks-resembling-sandstones-still-farther-west-are-schists-dipping-south-25-degrees-west-60-degrees-three-hundred-meters-west-of-angelim-kilometer-2427-elevation-647-meters-image233943314.htmlRMRGH12A–. Bulletin of the Geological Society of America. Geology. STRUCTURAL FEATURES ALONG SAO FRANCISCO RAILWAY 71 Between Canhotinho and Angelim bosses of crystalline rocks are ex- posed here and there over the campos, and the surfaces show numerous veins of quartz and dikes of pegmatite. About 5 kilometers west of Canhotinho schists dip south at an angle of 50 degrees. A little farther west there are exposed soft bedded rocks resembling sandstones. Still farther west are schists dipping south 25 degrees west 60 degrees. Three hundred meters west of Angelim (kilometer 242.7 ; elevation, 647 meters)
