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 74
... CROSS JOINTS ( JOINTS IN THE AC PLANE ) The term cross joints has been applied for fractures which transect the axes of folding and lineations which are parallel to the b axis of the coordi- nate system at an agle of approximately 90 ...
... CROSS JOINTS ( JOINTS IN THE AC PLANE ) The term cross joints has been applied for fractures which transect the axes of folding and lineations which are parallel to the b axis of the coordi- nate system at an agle of approximately 90 ...
Seite 134
... joints are usually large , rough and highly variable in strike and dip ( pl . XVIII , fig . 1 ) . They displace the ... cross them and slickensiding has been almost entirely destroyed by later movement . In the Port Deposit quarry a cross ...
... joints are usually large , rough and highly variable in strike and dip ( pl . XVIII , fig . 1 ) . They displace the ... cross them and slickensiding has been almost entirely destroyed by later movement . In the Port Deposit quarry a cross ...
Seite 170
... cross joints roughly follow this change . They were , therefore , emphasized by heavy black lines which indicate their average strike . The direction was generalized in many places , because of local irregularities in the strike of ...
... cross joints roughly follow this change . They were , therefore , emphasized by heavy black lines which indicate their average strike . The direction was generalized in many places , because of local irregularities in the strike of ...
Inhalt
Page | 19 |
Preface | 25 |
Primary Elements in Igneous Rocks of the Piedmont | 37 |
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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 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 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