The American Journal of Science, Том 200J.D. & E.S. Dana, 1920 |
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Стр. iv
... Mountains . T. D. A. COCKERELL , 169. - Annotated list of the Recent Brachiopoda in the collection of the United States National Museum , with descriptions of thirty - three new forms , W. H. DALL : Palæontology , Invertebrate , H ...
... Mountains . T. D. A. COCKERELL , 169. - Annotated list of the Recent Brachiopoda in the collection of the United States National Museum , with descriptions of thirty - three new forms , W. H. DALL : Palæontology , Invertebrate , H ...
Стр. 31
... mountainous region dump their load into deep water producing what might be termed a submarine alluvial fan , but such deposits must necessarily be very limited . In the formation of continental deposits a change of base- level affects ...
... mountainous region dump their load into deep water producing what might be termed a submarine alluvial fan , but such deposits must necessarily be very limited . In the formation of continental deposits a change of base- level affects ...
Стр. 32
... mountains of considerable relief ; a semi - arid climate , in which erosion and disintegration proceeded rapidly , load- ing up the streams to their ultimate capacity ; torrential floods in which the coarser materials were spread out ...
... mountains of considerable relief ; a semi - arid climate , in which erosion and disintegration proceeded rapidly , load- ing up the streams to their ultimate capacity ; torrential floods in which the coarser materials were spread out ...
Стр. 149
... Mountain were determined . The results follow : Rock Lava plug Great Mud Flow . Red Mud Flow .. SiO2 Al2O3 Fe2O3 % % % 75.2 14.2 3.2 73.7 13.8 3.8 63.6 18.4 7.8 17.9 6.3 Pre - eruptive volcanics ... 69.2 It is rather interesting to note ...
... Mountain were determined . The results follow : Rock Lava plug Great Mud Flow . Red Mud Flow .. SiO2 Al2O3 Fe2O3 % % % 75.2 14.2 3.2 73.7 13.8 3.8 63.6 18.4 7.8 17.9 6.3 Pre - eruptive volcanics ... 69.2 It is rather interesting to note ...
Стр. 169
... Mountains ; by T. D. A. COCKERELL . Proc . U. S. Nat . Mus . , 57 , 233-260 , pls . 32-36 , 1920. From the Green River series , Scudder and others have described 239 kinds of insects , to which are here added 35 new forms , " an ...
... Mountains ; by T. D. A. COCKERELL . Proc . U. S. Nat . Mus . , 57 , 233-260 , pls . 32-36 , 1920. From the Green River series , Scudder and others have described 239 kinds of insects , to which are here added 35 new forms , " an ...
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actinium åkermanite Aletomeryx ant.-post Antilocapra Archæotherium atoms basalt beds calcite calcium canine carbon clavus clavus cones crassum Cretaceous crystals curve cusps Dakota dependent process deposits diameter dike Dinohyus Entelodon feet feldspar flow foramen formation fossa fossil genus Geology glass glenoid cavity heel Holotype hypocone igneous indices intrusives island JOUR jugal Lake Lake Timiskaming lavas Leidy leucite limestone Lipari lower jaw magnetite Marsh melanterite mental tubercles mineral Miocene molars mountains obsidian Oligocene olivine One-fifth nat orbit Oreodon orogenies oxide oxygen P₁ Paleozoic Pecos Pelonax phenocrysts photograph Pirsson planes plate posterior premolar present radium ramus ratio relative rhombohedron rhyolites River rock San Andreas sandstone SCI.-FOURTH SERIES shales side skull slender species specimen structure surface tanks teeth thickness Timiskaming tion tooth transverse U. S. Geol unconformity upper uranium Valley volcano wave lengths width Yeso