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 161
... bodies of which have intruded and injected the schist along structural boundaries or as isolated lenticular bodies within the gabbro areas . The granitic rocks may be divided into older granite gneisses and younger granites . The former ...
... bodies of which have intruded and injected the schist along structural boundaries or as isolated lenticular bodies within the gabbro areas . The granitic rocks may be divided into older granite gneisses and younger granites . The former ...
Seite 204
... bodies of volcanics which are found as dike - like bodies outside the main mass . This " lit - par - lit " type of contact is somewhat similar to that described by Cloos ( 28 ) between the Ellicott City granite and the Wissahickon ...
... bodies of volcanics which are found as dike - like bodies outside the main mass . This " lit - par - lit " type of contact is somewhat similar to that described by Cloos ( 28 ) between the Ellicott City granite and the Wissahickon ...
Seite 221
... bodies as dikes . The only possible suggestion of a dike is the tabular shape of the smaller bodies and the invariably sharp contacts . The data them- selves do not suggest dikes because many basic intrusions are now known with bands of ...
... bodies as dikes . The only possible suggestion of a dike is the tabular shape of the smaller bodies and the invariably sharp contacts . The data them- selves do not suggest dikes because many basic intrusions are now known with bands of ...
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