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 39
... rock boundaries transect the wall rock structures . All igneous contacts occasionally transect wall rock structures . The Woodstock granite is predominantly discordant ( pl . XXV , fig . 2 ) . All dike - like bodies are discordant and ...
... rock boundaries transect the wall rock structures . All igneous contacts occasionally transect wall rock structures . The Woodstock granite is predominantly discordant ( pl . XXV , fig . 2 ) . All dike - like bodies are discordant and ...
Seite 46
... wall rock structure as de- scribed above . They are almost the rule in the Maryland intrusives . The contacts between two intrusive phases within one larger complex are concordant if the internal contact follows the structures of the ...
... wall rock structure as de- scribed above . They are almost the rule in the Maryland intrusives . The contacts between two intrusive phases within one larger complex are concordant if the internal contact follows the structures of the ...
Seite 146
... wall rocks . Thus innumerable wall rock inclusions are torn loose and oriented . Dikelets of granodiorite fol- low ... wall rock the contacts usually appear concordant . Instead of a clear transgression much inter- tonguing is observed ...
... wall rocks . Thus innumerable wall rock inclusions are torn loose and oriented . Dikelets of granodiorite fol- low ... wall rock the contacts usually appear concordant . Instead of a clear transgression much inter- tonguing is observed ...
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