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 198
... foliation . The feldspar was determined as oligoclase , about Ab , Ang . Quartz and feldspar are about equal . The larger feldspar grains , about 1.0 mm . , are granulated and show orientation at small angles to the foliation as if they ...
... foliation . The feldspar was determined as oligoclase , about Ab , Ang . Quartz and feldspar are about equal . The larger feldspar grains , about 1.0 mm . , are granulated and show orientation at small angles to the foliation as if they ...
Seite 207
... foliation parallel to that of the inclosing granite regardless of the direction of the dikes . Where aplites are intrusive into the wall rock they have a fairly strong foliation , which is parallel to the walls of the dike , whether ...
... foliation parallel to that of the inclosing granite regardless of the direction of the dikes . Where aplites are intrusive into the wall rock they have a fairly strong foliation , which is parallel to the walls of the dike , whether ...
Seite 208
... foliation with a weaker planar one due to the alignment of hornblende and a material in which no foliation is visible megascopically . Under the microscope all specimens show at least a trace of parallel horn- blende crystals . Where ...
... foliation with a weaker planar one due to the alignment of hornblende and a material in which no foliation is visible megascopically . Under the microscope all specimens show at least a trace of parallel horn- blende crystals . Where ...
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