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 29
... geologic data gathered in the field may be made readily available for general use . Geologic mapping is a slow work because the geologist in the field must find all rock exposures in order to ascertain accuracy . Most of the area of the ...
... geologic data gathered in the field may be made readily available for general use . Geologic mapping is a slow work because the geologist in the field must find all rock exposures in order to ascertain accuracy . Most of the area of the ...
Seite 83
... geologic implications if the investigation is supposed to be geological ( 103 ) . Since the investigations are time consuming and have to be done with great care , some investigators have missed the geologic connections and stagnate in ...
... geologic implications if the investigation is supposed to be geological ( 103 ) . Since the investigations are time consuming and have to be done with great care , some investigators have missed the geologic connections and stagnate in ...
Seite 105
Maryland Geological Survey. ( 104 ) WILLIAMS , G. H. The General Relations of the Granitic Rocks in the Middle Atlantic ... GEOLOGIC SURVEY OF PENNSYLVANIA . Map of Pennsyl- vania showing the Geological Formations . 1931. 1 : 380 , 160 ...
Maryland Geological Survey. ( 104 ) WILLIAMS , G. H. The General Relations of the Granitic Rocks in the Middle Atlantic ... GEOLOGIC SURVEY OF PENNSYLVANIA . Map of Pennsyl- vania showing the Geological Formations . 1931. 1 : 380 , 160 ...
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