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 268
... contain- ing slightly more clay ; the base of the formation contains thin iron cemented layers about inch in thickness ; this formation is here , as everywhere , literally packed with tubes of Halymenites major Lesquereux .. Crosswicks ...
... contain- ing slightly more clay ; the base of the formation contains thin iron cemented layers about inch in thickness ; this formation is here , as everywhere , literally packed with tubes of Halymenites major Lesquereux .. Crosswicks ...
Seite 271
... contains re- worked glauconitic sand from the underlying Marshalltown forma- tion . Unconformity . Upper Cretaceous series : Matawan group : Marshalltown formation : Bluish gray , weathered and partly leached , heavily glauconitic clay ...
... contains re- worked glauconitic sand from the underlying Marshalltown forma- tion . Unconformity . Upper Cretaceous series : Matawan group : Marshalltown formation : Bluish gray , weathered and partly leached , heavily glauconitic clay ...
Seite 272
... contains patches of gray - green , glauconitic sand , mottled where weathered ; the glauconitic sand has been derived from the underlying Marshalltown formation ; wherever seen the contained iron crusts and gray sand patches make its ...
... contains patches of gray - green , glauconitic sand , mottled where weathered ; the glauconitic sand has been derived from the underlying Marshalltown formation ; wherever seen the contained iron crusts and gray sand patches make its ...
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