Author: Wallace G. BellPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 122
Book Description
Stratigraphy of the Morrison Formation and Related Strata in Southeastern Utah and Southwestern Colorado Preliminary Report
Author: Wallace G. BellPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 122
Book Description
Preliminary Report on the Stratigraphy of the Morrison and Related Formations of the Colorado Plateau Region
Author: Lawrence Carey CraigPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 130
Book Description
Stratigraphy of the Morrison and Related Formations, Colorado Plateau Region
Author: Lawrence Carey CraigPublisher:
ISBN:
Category : Colorado Plateau
Languages : en
Pages : 50
Book Description
Stratigraphy of the Morrison and Related Formations, Colorado Plateau Region, a Preliminary Report
Author: Lawrence C. CraigPublisher: BiblioGov
ISBN: 9781289007607
Category :
Languages : en
Pages : 50
Book Description
Three subdivisions of the Jurassic rocks of the Colorado Plateau region are: the Glen Canyon group, mainly eolian and fluvial sedimentary rocks; the San Rafael group, marine and marginal marine sedimentary rocks; and the Morrison formation, fluvial and lacustrine sedimentary rocks. In central and eastern Colorado the Morrison formation has not been differ- entiated into members. In eastern Utah, northeastern Arizona, northwestern New Mexico, and in part of western Colorado, the Morrison may be divided into a lower part and an upper part; each part has two members which are di1Ierentiated on a lithologic basis. Where differentiated, the lower part of the Morrison consists either of the Salt Wash member or the Recapture member or both; these are equivalent in age and inter tongue and intergrade over a broad area in the vicinity of the Four Corners area of New Mexico, Colorado, Arizona, and Utah. The Salt Wash member is present in eastern Utah and parts of western Colorado, north- eastern Arizona, and northwestern New Mexico. It was formed as a large alluvial plain or 'fan' by an aggrading system of braided streams diverging to the north and east from an apex in south-central Utah. The major source area of the Salt Wash was to the southwest of south-central Utah, probably in west-central Arizona and southeastern California. The member was derived mainly from sedimentary rocks. The Salt Wash deposits grade from predomi- nantly coarse texture at the apex of the 'fan' to predominantly flne texture at the margin of the 'fan'. The Salt Wash member has been arbitrarily divided into four facies: a con- glomera tic sandstone facies, a sandstone and mudstone facies, a claystone and lenticular sandstone facies, and a claystone and limestone facies. The Recapture member of the Morrison formation is present in northeastern Arizona, northwestern New Mexico, and small areas of southeastern Utah and southwestern Colorado near the Four Corners. It was formed as a large alluvial plain
Stratigraphy of the Morrison and Related Formations, Colorado Plateau Region
Author: Lawrence Carey CraigPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 44
Book Description
The Sedimentology and Stratigraphy of the Morrison Formation (Upper Jurassic) in Northwestern Colorado and Northeastern Utah
Author: James Clifford DawsonPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 282
Book Description
Paleontology and Geology of the Upper Jurassic Morrison Formation
Author: John R. FosterPublisher: New Mexico Museum of Natural History and Science
ISBN:
Category : Science
Languages : en
Pages : 257
Book Description
New Interpretations of the Stratigraphy and Sedimentology of Uppermost Jurassic to Lowermost Upper Cretaceous Strata in the San Juan Basin of Northwestern New Mexico
Author: William M. AubreyPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 48
Book Description
Nuclear Science Abstracts
Author: List of Geological Survey Geologic and Water-supply Reports and Maps for Utah
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 316
Book Description