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 158
... schist to distinguish it from its western less metamorphosed facies . It is composed largely of mica schist and mica gneiss interbedded with quartzite . This formation has a larger areal extent than any of the preceding formations and ...
... schist to distinguish it from its western less metamorphosed facies . It is composed largely of mica schist and mica gneiss interbedded with quartzite . This formation has a larger areal extent than any of the preceding formations and ...
Seite 159
... schist with both the gneiss and quartz diorite . Swarms of large dikes have injected the mica schist south of Hampden . Many large and small pegmatites have intruded and injected the syn- clines and limbs of anticlines between ...
... schist with both the gneiss and quartz diorite . Swarms of large dikes have injected the mica schist south of Hampden . Many large and small pegmatites have intruded and injected the syn- clines and limbs of anticlines between ...
Seite 185
... schist which run around these blunt ends . In this way the structure of the marble and schist seem to parallel the structures in the gneiss . Considering the major axes of uplift , the minor structures in the marble and schist cross ...
... schist which run around these blunt ends . In this way the structure of the marble and schist seem to parallel the structures in the gneiss . Considering the major axes of uplift , the minor structures in the marble and schist cross ...
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