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 64
... mica schist , chlorite schist , if garnet is present of garnetiferous mica schist , etc. The Piedmont of Maryland includes vast areas of schist in which a flow cleavage is the dominant structure . The Wissahickon formation is the ...
... mica schist , chlorite schist , if garnet is present of garnetiferous mica schist , etc. The Piedmont of Maryland includes vast areas of schist in which a flow cleavage is the dominant structure . The Wissahickon formation is the ...
Seite 89
... mica cleavages regardless of size or type . The position of the cleavage in 500 mica grains have been measured . In the total diagram all the maxima which can be seen in the individual diagrams are also recognized . The poles of the ...
... mica cleavages regardless of size or type . The position of the cleavage in 500 mica grains have been measured . In the total diagram all the maxima which can be seen in the individual diagrams are also recognized . The poles of the ...
Seite 155
... mica gneiss member , and an upper mica schist member . This threefold division can not always be recognized . Quartzite may dominate the formation in some localities while mica schist may prevail in others . Again , the quartzite member ...
... mica gneiss member , and an upper mica schist member . This threefold division can not always be recognized . Quartzite may dominate the formation in some localities while mica schist may prevail in others . Again , the quartzite member ...
Inhalt
Preface | 25 |
Economic Significance of Detailed Structural Investigations | 31 |
Structures in Igneous Rocks | 36 |
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abundant amphibolite amygdules anticlines aplite axes of folding axis Baltimore gabbro Baltimore gneiss banding bedding biotite Bridge canal 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 microscope 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 volcanics wall rock Wissahickon schist Woodstock dome