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 116
... material is located on top of a hill , consequently it could not have been moved far . The pegmatites are believed to have followed soon after the intrusion of granodiorite , because the feldspars show a close affinity in both rocks ...
... material is located on top of a hill , consequently it could not have been moved far . The pegmatites are believed to have followed soon after the intrusion of granodiorite , because the feldspars show a close affinity in both rocks ...
Seite 118
... material . Granodiorite and gabbro dikes within metadacite confirm the belief that the metadacite is the older rock . METAMORPHOSED SEDIMENTS Sedimentary materials metamorphosed to schists , phyllites , quartzites and " conglomerates ...
... material . Granodiorite and gabbro dikes within metadacite confirm the belief that the metadacite is the older rock . METAMORPHOSED SEDIMENTS Sedimentary materials metamorphosed to schists , phyllites , quartzites and " conglomerates ...
Seite 124
... material through it . These bands run the length of the inclusion and may occur anywhere within it . They are , therefore , distinct from contact metamorphism . The contact with other layers is usually not sharp . In thin sections ...
... material through it . These bands run the length of the inclusion and may occur anywhere within it . They are , therefore , distinct from contact metamorphism . The contact with other layers is usually not sharp . In thin sections ...
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