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 34
Maryland Geological Survey. This was done on structural evidence collected by the writer and Hershey ( 26 ) and the evidence is presented in detail in Part II . Since this affects the interpretation of most of the igneous members of the ...
Maryland Geological Survey. This was done on structural evidence collected by the writer and Hershey ( 26 ) and the evidence is presented in detail in Part II . Since this affects the interpretation of most of the igneous members of the ...
Seite 116
... evidence of somewhat more crushing ; mortar structure is locally developed ; and feldspar locally shows bent and cross twinning ascribed by Grout ( 46 ) to deformation . There is , however , no evidence of large scale recrystalliza ...
... evidence of somewhat more crushing ; mortar structure is locally developed ; and feldspar locally shows bent and cross twinning ascribed by Grout ( 46 ) to deformation . There is , however , no evidence of large scale recrystalliza ...
Seite 162
... evidence for a general unconformity is shown by the much greater deformation and igneous injection in the gneiss as ... evidence for an unconformity . To the writer this appears to be insufficient evidence , since 162 GNEISS DOMES NEAR ...
... evidence for a general unconformity is shown by the much greater deformation and igneous injection in the gneiss as ... evidence for an unconformity . To the writer this appears to be insufficient evidence , since 162 GNEISS DOMES NEAR ...
Inhalt
Page | 19 |
Preface | 25 |
Primary Elements in Igneous Rocks of the Piedmont | 37 |
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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