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 121
... quartz is present but it is less than 10 % in amount . No feldspar or ore minerals were seen . Secondary epidote is abundant . Quartz - muscovite schist Megascopically the ... Quartz-muscovite schist Quartz-calcite-chlorite schist Quartzite.
... quartz is present but it is less than 10 % in amount . No feldspar or ore minerals were seen . Secondary epidote is abundant . Quartz - muscovite schist Megascopically the ... Quartz-muscovite schist Quartz-calcite-chlorite schist Quartzite.
Seite 123
... quartz diorite , biotite and massive grano- diorite were intruded . QUARTZ DIORITE The quartz diorite is older than the granodiorite . This is shown by many inclusions south of Conowingo Dam and along the north side of Octoraro Creek ...
... quartz diorite , biotite and massive grano- diorite were intruded . QUARTZ DIORITE The quartz diorite is older than the granodiorite . This is shown by many inclusions south of Conowingo Dam and along the north side of Octoraro Creek ...
Seite 292
... Quartz diagram , statistical , 91 Quartz diorite , 115 , 123 Quartz hornblende gabbro , 112 Quartz muscovite schist , 121 Quartz phyllite , 120 Quartz veins , 68 , 227 R Radioactive haloes , 88 Randallstown ( B ) , 175 , XXVII Raritan ...
... Quartz diagram , statistical , 91 Quartz diorite , 115 , 123 Quartz hornblende gabbro , 112 Quartz muscovite schist , 121 Quartz phyllite , 120 Quartz veins , 68 , 227 R Radioactive haloes , 88 Randallstown ( B ) , 175 , XXVII Raritan ...
Inhalt
Page | 19 |
Preface | 25 |
Primary Elements in Igneous Rocks of the Piedmont | 37 |
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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 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