Depositional Environments of the Pictured Cliffs Sandstone, Late Cretaceous, near Durango, Colorado

dc.creator	Tokar, Frank J., Jr.	en_US
dc.creator	Evans, James E.	en_US
dc.date.accessioned	2006-07-07T18:06:25Z
dc.date.available	2006-07-07T18:06:25Z
dc.date.issued	1993-09	en_US
dc.identifier.citation	The Ohio Journal of Science. v93, n4 (September, 1993), 83-89	en_US
dc.identifier.issn	0030-0950	en_US
dc.identifier.uri	http://hdl.handle.net/1811/23570
dc.description	Author Institution: Department of Geology, Bowling Green State University	en_US
dc.description.abstract	The Pictured Cliffs Sandstone was deposited in the northwestern part of the San Juan Basin (Colorado-New Mexico) during the last regression of the Cretaceous Interior Seaway. The unit is generally interpreted as deltaic or marginal marine; however, outcrops near Durango, CO, consist of repetitive sequences of hummocky stratified (HS) sandstone. Each HS sequence consists of a scoured surface overlain by hummocky-stratified, fine-grained sandstone 20-50 cm thick, overlain by ripple- to planarlaminated, bioturbated, very fine-grained sandstone to mudstone. Amalgamated HS sequences are as much as 7 m thick.	en_US
dc.format.extent	3062355 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en_US
dc.title	Depositional Environments of the Pictured Cliffs Sandstone, Late Cretaceous, near Durango, Colorado	en_US