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 46
... structures of the earlier phase . Discordant contacts transgress the wall rock structures . Many of the dikes in the region are transgressive and cut sharply across any other struc- tures . The larger intrusives show discordant contacts ...
... structures of the earlier phase . Discordant contacts transgress the wall rock structures . Many of the dikes in the region are transgressive and cut sharply across any other struc- tures . The larger intrusives show discordant contacts ...
Seite 131
... structures of the pluton are discussed systematically . First , reasons for the primary nature of flow structures are given ; second , the structures themselves are taken up and illus- trated by examples ; third , the elements of the ...
... structures of the pluton are discussed systematically . First , reasons for the primary nature of flow structures are given ; second , the structures themselves are taken up and illus- trated by examples ; third , the elements of the ...
Seite 236
... structures which now predominate and have to a large extent obliterated the earlier ones . The secondary structures clearly indicate the directions in which the gabbro masses flowed during their metamorphism ; that is , during the ...
... structures which now predominate and have to a large extent obliterated the earlier ones . The secondary structures clearly indicate the directions in which the gabbro masses flowed during their metamorphism ; that is , during the ...
Inhalt
Page | 19 |
Preface | 25 |
Elements of the Rigid Phase | 47 |
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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 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