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 36
Maryland Geological Survey. STRUCTURES IN IGNEOUS ROCKS GENERAL STATEMENT Igneous rocks have once been hot and molten and have been intruded into higher portions of the earth's crust or poured out over its surface . They have been ...
Maryland Geological Survey. STRUCTURES IN IGNEOUS ROCKS GENERAL STATEMENT Igneous rocks have once been hot and molten and have been intruded into higher portions of the earth's crust or poured out over its surface . They have been ...
Seite 39
... igneous masses . 1. Internal contacts between parts of one igneous complex . These bound- aries may be sharp or gradational . Port Deposit granodiorite complex between granodiorite and quartz- diorite ( p . 142 ) ; Baltimore gabbro ...
... igneous masses . 1. Internal contacts between parts of one igneous complex . These bound- aries may be sharp or gradational . Port Deposit granodiorite complex between granodiorite and quartz- diorite ( p . 142 ) ; Baltimore gabbro ...
Seite 78
... IGNEOUS ROCKS GENERAL STATEMENT A sedimentary rock may be metamorphosed to such an extent that no primary structures are preserved to distinguish it from an igneous rock . Chemical composition may furnish the necessary information as to ...
... IGNEOUS ROCKS GENERAL STATEMENT A sedimentary rock may be metamorphosed to such an extent that no primary structures are preserved to distinguish it from an igneous rock . Chemical composition may furnish the necessary information as to ...
Inhalt
Page | 19 |
Preface | 25 |
Elements of the Rigid Phase | 47 |
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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 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 Ellicott City 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 granite porphyry 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 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