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 115
... amount of the muscovite is primary . The quartz in certain localities shows undulatory extinction in euhedral crystals . In other places it is granulated and exhibits sharper extinction which shows that although crushing has taken place ...
... amount of the muscovite is primary . The quartz in certain localities shows undulatory extinction in euhedral crystals . In other places it is granulated and exhibits sharper extinction which shows that although crushing has taken place ...
Seite 116
... amount of muscovite appears to be primary but most of it is secondary after feldspar . Magnetite , always closely associated with biotite or its alteration products , is always present in varying amounts . The appears to be less ...
... amount of muscovite appears to be primary but most of it is secondary after feldspar . Magnetite , always closely associated with biotite or its alteration products , is always present in varying amounts . The appears to be less ...
Seite 121
... amount , the two constitute about 80 % of the slide . Quartz is the other major constituent . Magnetite is more abundant than usual , and there is a very small amount of altered feldspar present . Quartz - calcite - chlorite schist In ...
... amount , the two constitute about 80 % of the slide . Quartz is the other major constituent . Magnetite is more abundant than usual , and there is a very small amount of altered feldspar present . Quartz - calcite - chlorite schist In ...
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