Report, Band 13John Hopkins Press, 1937 CONTENTS.--Vol. I (1897)--Vol. II (1898)--Vol. III (1899)--Vol. IV (1902)--Vol. V (1905)--Vol. VI (1906)--Vol. VII (1908)--Vol. VIII (1909)--Vol. IX (1911)--Vol. X (1918)--Vol. XI (1922)--Vol. XII (1928)--Vol. XIII (1937)--Vol. XIV (1941) |
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Seite 200
... volcanics . The feldspar was de- termined as bytownite Ab , Ang . In most cases , however , the borders of the grains are altered to albite and some are entirely replaced . Quartz is about equal to feld- spar in abundance and shows no ...
... volcanics . The feldspar was de- termined as bytownite Ab , Ang . In most cases , however , the borders of the grains are altered to albite and some are entirely replaced . Quartz is about equal to feld- spar in abundance and shows no ...
Seite 204
... volcanics . Where later intrusions cross the strike of the volcanics they do so by interfingering and " lit - par - lit " injection . This manner of intrusion has resulted in the splitting off of small bodies of volcanics which are ...
... volcanics . Where later intrusions cross the strike of the volcanics they do so by interfingering and " lit - par - lit " injection . This manner of intrusion has resulted in the splitting off of small bodies of volcanics which are ...
Seite 207
... volcanics swings more to the east they cut it , striking roughly parallel to the dikes at the river . On Stony Run the strike of both volcanics and porphyry is extremely irregular . One exposure shows a curving dike with the foliation ...
... volcanics swings more to the east they cut it , striking roughly parallel to the dikes at the river . On Stony Run the strike of both volcanics and porphyry is extremely irregular . One exposure shows a curving dike with the foliation ...
Inhalt
Page | 19 |
Preface | 25 |
Primary Elements in Igneous Rocks of the Piedmont | 37 |
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Häufige Begriffe und Wortgruppen
abundant amphibolite amygdules anticlines aplite axes of folding axis Baltimore gabbro Baltimore gneiss banding bedding biotite Bridge Chattolanee dome Chesapeake chlorite cleavage planes Conowingo Dam County Creek cross joints Crosswicks clay crystals deformation Delaware Deposit granodiorite complex diagrams dikes direction east Englishtown Englishtown sand epidote exposures fault feet feldspar flow cleavage flow lines flow structures foliation fossils fracture cleavage gabbro geologic Glenarm Glenarm Series grains granite porphyry granodiorite hornblende igneous rocks inclusions intrusive Jersey lamprophyre linear structures localities marble Marshalltown Marshalltown formation Maryland massive metamorphism metamorphosed mile minerals Mount Laurel Mount Laurel sand northeast occur orientation parallel pegmatite Piedmont planar Plate pluton Port Deposit Port Deposit granodiorite primary quarry quartz diorite quartzite recrystallization region relation schist schistosity sediments Setters formation shear specimen strike Susquehanna River syncline Towson dome transect unconformity Upper Cretaceous volcanics wall rock Wissahickon schist Woodstock dome