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 83
... microscope without geologic implications if the investigation is supposed to be geological ( 103 ) . Since the investigations are time consuming and have to be done with great care , some investigators have missed the geologic ...
... microscope without geologic implications if the investigation is supposed to be geological ( 103 ) . Since the investigations are time consuming and have to be done with great care , some investigators have missed the geologic ...
Seite 88
... MICROSCOPIC INVESTIGATION Under the microscope the same minerals as mentioned above can be seen . A small amount of zircon is evident in the centers of radioactive haloes within the biotite crystals . Muscovite occurs in different sizes ...
... MICROSCOPIC INVESTIGATION Under the microscope the same minerals as mentioned above can be seen . A small amount of zircon is evident in the centers of radioactive haloes within the biotite crystals . Muscovite occurs in different sizes ...
Seite 116
... microscope the rock is found to be composed chiefly of feld- spar , quartz and biotite . The quartz almost always shows strain shadows and mosaic patterns . Exactly as in the granodiorites , the feldspars contain a great number of ...
... microscope the rock is found to be composed chiefly of feld- spar , quartz and biotite . The quartz almost always shows strain shadows and mosaic patterns . Exactly as in the granodiorites , the feldspars contain a great number of ...
Inhalt
The Application of Recent Structural Methods in the Interpretation | 27 |
General Statement | 49 |
Types and Manner of Producing folds | 55 |
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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 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 Upper Cretaceous volcanics wall rock Wissahickon schist Woodstock dome