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
... feldspar makes up most of the remainder of the rock . The grains are about 0.1 mm . but longer than wide and have their long dimension parallel to the foliation . The feldspar was determined as oligoclase , about AbsAn2 . Quartz and ...
... feldspar makes up most of the remainder of the rock . The grains are about 0.1 mm . but longer than wide and have their long dimension parallel to the foliation . The feldspar was determined as oligoclase , about AbsAn2 . Quartz and ...
Seite 218
... feldspar and pyrox- ene . The feldspar is Abis Angs - a bytownite . The pyroxene is both orthorhombic and monoclinic . Accessories are magnetite , apatite , rarely olivine , and indeterminate inclusions in the minerals . The pyroxene- ...
... feldspar and pyrox- ene . The feldspar is Abis Angs - a bytownite . The pyroxene is both orthorhombic and monoclinic . Accessories are magnetite , apatite , rarely olivine , and indeterminate inclusions in the minerals . The pyroxene- ...
Seite 219
... feldspar grains . It is also found in cracks in pyroxene . It is clearly younger than pyroxene but is older than uralitization . It may be regarded as a pyrogenic reaction mineral . The rock is further charac- terized by a foliation in ...
... feldspar grains . It is also found in cracks in pyroxene . It is clearly younger than pyroxene but is older than uralitization . It may be regarded as a pyrogenic reaction mineral . The rock is further charac- terized by a foliation in ...
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