Report on the United States and Mexican Boundary Survey: Made Under the Direction of the Secretary of the Interior, 1권,파트 2C. Wendell, printer, 1857 |
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8 페이지
... feldspathic or granitic lava . " ( No. 40. ) ORDERBAL View of the Initial Point , on Rio Bravo . On the Mexican side , the various formations , stratified and igneous , are blended and intermixed in great confusion , the connexion ...
... feldspathic or granitic lava . " ( No. 40. ) ORDERBAL View of the Initial Point , on Rio Bravo . On the Mexican side , the various formations , stratified and igneous , are blended and intermixed in great confusion , the connexion ...
14 페이지
... feldspathic lava , " exhibiting a granitic appearance . ( No. 86. ) At the point where the old road crosses the ridge , called the " San Luis Pass , " the ascent is quite abrupt , rising from the plain below 800 to 1,000 feet . The ...
... feldspathic lava , " exhibiting a granitic appearance . ( No. 86. ) At the point where the old road crosses the ridge , called the " San Luis Pass , " the ascent is quite abrupt , rising from the plain below 800 to 1,000 feet . The ...
16 페이지
... feldspathic lava , granitic in texture , associated with basalt , stratified porphyry , and closely cemented breccias . These several forms , variously associated , serve to give a remarkable diversity and broken character to the rock ...
... feldspathic lava , granitic in texture , associated with basalt , stratified porphyry , and closely cemented breccias . These several forms , variously associated , serve to give a remarkable diversity and broken character to the rock ...
25 페이지
... California , ) under the command of Lieut . R. S. Williamson , Top . Eng . , 1853. Preliminary report by William P. Blake , geologist and mineralogist , p . 75 . No. 23. A compact , white , feldspathic rock , 4 M ANALYSES OF MINERALS . 25.
... California , ) under the command of Lieut . R. S. Williamson , Top . Eng . , 1853. Preliminary report by William P. Blake , geologist and mineralogist , p . 75 . No. 23. A compact , white , feldspathic rock , 4 M ANALYSES OF MINERALS . 25.
26 페이지
... feldspathic rock , from the valley of the San Pedro river , in Sonora . Before the blow - pipe it exhibits all the reactions of a felsite or fine - grained porphyry . The texture is compact , resembling the base of porphyry without the ...
... feldspathic rock , from the valley of the San Pedro river , in Sonora . Before the blow - pipe it exhibits all the reactions of a felsite or fine - grained porphyry . The texture is compact , resembling the base of porphyry without the ...
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adjoining alluvial Ammonites basin beds belt bluffs Boundary Survey breccia calcareous cañon Caprina carbonate carboniferous limestone character clay coal measures coast collections color Colorado compact composed connexion containing copper Cordilleras course creek cretaceous cretaceous formation cretaceous fossils cretaceous strata crystalline deposits desert diluvial Eagle Pass El Paso elevation exhibit Exogyra exposures extensive feet feldspar feldspathic fossils Frémont frequently geological granite gravelly table-land green sand igneous rocks Inoceramus irregular Jersey lava lignite localities lower valve marked marl mass metamorphic rocks miles mineral Missouri mountain range mouth Nebraska numerous occur Ostrea Paso Pitcheri plain PLATE porphyritic portion present problematicus quartz region ribs ridge Rio Bravo river rocky Roemer San Pedro sandstone Santa shell side Sierra similar slope Sonoyta southwest species specimens springs strata stratified stream summit surface Tertiary formation TEXANA Texas texture thick umbo upper valley various vicinity volcanic