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Books Books 1 - 6 of 6 on Then come the complete series of cretaceous strata in their order, inclining from....  
" Then come the complete series of cretaceous strata in their order, inclining from 20° to 35°. Underneath the ridge capped with the sandstone No. 1 is a thin belt of ashen-gray marls and arenaceous marls, with one or two layers, two to four feet thick,... "
The Rocky Mountain Directory and Colorado Gazetteer, for 1871: Comprising a ... - Page 66
1870 - 442 pages
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Preliminary field report of the United States Geological Survey of Colorado ...

Geological and Geographical Survey of the Territories (U.S.), Ferdinand Vandeveer Hayden - Colorado - 1869 - 155 pages
...ashen-gray marls and arenaceous marls, with one or two layers, two to four feet thick, of hard bine limestone, which I regard as of jurassic age. These...age. These beds dip at various angles, from 30° to 0O0, and, as far as I can determine, conform generally to the inclination of the metamorphic rocks...
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PRELIMINARY FIELD REPORT OF THE UNITED STATES GEOLOGICAL SURVEY OF COLORADO ...

F. V. HAYDEN - 1869
...layers, two to four feet thick, of hard blue limestone, which I regard as of Jurassic age. These pass dWn into light reddish, loose arenaceous sediments. Further...carboniferous age. These beds dip at various angles, Croin 30° to 60°, and, as far as I can determine, conform generally to the inclination of the metamorphic...
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Annual Report of the United States Geological and Geographical Survey of the ...

Geological and Geographical Survey of the Territories (U.S.) - Geology - 1873
...the surface in long lines like walls. Near Park station, about twelve miles north of Cache la Poudre, the upheaved ridges begin to spread out, revealing...age. These beds dip at various angles, from 30° to 600, and, as far as 1 can determine, conform generally to ( he inclination of the metamorphic rocks...
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1st -12th Annual Report of the United States Geological and Geographical ...

Geological and Geographical Survey of the Territories (U.S.) - 1873 - 12 pages
...the surface in long lines like walls. Near Park station, about twelve miles north of Cache la Poudre, the upheaved ridges begin to spread out, revealing...age. These beds dip at various angles, from 30° to 00°, and, as far as 1 can determine, conform generally to l he inclination of the metamorphic rocks...
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united states geological survey

1873
...two to four feet thick, of hard blue limestone, which I regard as of Jurassic age. These pass clown into light reddish, loose arenaceous sediments. Further...which are probably of carboniferous age. These beds clip at various angles, from 30° to 60°, and, as far as I can determine, conform generally to the...
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Annual Report of the United States Geological Survey of the ..., Volumes 1-3

Geological Survey of the Territories (U.S.) - Discoveries in geography - 1873
...variegated. Close to the margin of the mountains, sometimes forming the inside ridge, is a bed of wlíitish limestone, underlaid by dull purplish sandstone and...at various angles, from 30° to 60°, and, as far as I can determine, conform generally to i he inclination of the metainorphic rocks -which compose...
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