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Geology of the Gulf Coastal Plain in Marshall County, Oklahoma : an introduction and field-trip guide.

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Okla State Agency	Geological Survey, Oklahoma
Okla Agency Code	'760'
Title	Geology of the Gulf Coastal Plain in Marshall County, Oklahoma : an introduction and field-trip guide.
Authors	Oklahoma Geological Survey. Oklahoma Academy of Science. Suneson, Neil, 1950-
Publisher	Oklahoma Geological Survey
Publication Date	1997
Publication type	Research Report/Study Student Materials
Subject	Geology--Oklahoma. Sedimentary rocks--Oklahoma.
Purpose	PURPOSE OF THE FIELD TRIP Members of the Oklahoma Academy of Science have briefly visited rocks of the Gulf Coastal Plain twice in the recent past. On the spring 1995 field trip, we collected the echinois Enallaster texanus (Roemer) from the Goodland Limestone at the Meridian Aggregates Company quarry just north of the town of Idabel. On the spring 1996 field trip, we saw a major unconformity just south of Lake Murray where the very tilted Pennsylvanian Pumpkin Creek Limestone (about 310 million years old) was overlain by the nearly horizontal Cretaceous Antlers Sandstone (about 108 m.y. old) (note - this age is more accurate than that given in the Lake Murray guidebook).; This year, members of the OAS will once again visit the sedimentary rocks of the Oklahoma Gulf Coastal Plain, but our objectives will be slightly different. We will apply some fundamental geologic principles to what we see in the rocks and attempt to determine under what environmental conditions the sediments were deposited about 100 m.y. ago. Were the sediments deposited in a river valley, on a beach, a delta, or in the ocean? How deep in the ocean? We will consider how the Cretaceous sea level changed in this part of Oklahoma and we will construct our own "sea-level curve" for this time period. We will then compare our curves to published worldwide sea-level curves of the Cretaceous. All along, we will try to picture what this part of Oklahoma looked like during the time of T. rex., or even better, our own Acrocanthosaurus atokensis.
Notes	Prepared for the Spring Field Meeting of the Oklahoma Academy of Science, Cross Point Methodist Camp, Kingston, Oklahoma April 18-20, 1997
OkDocs Class#	G500.7 O61fr 1-97
Digital Format	PDF, Adobe Reader required
ODL electronic copy	Downloaded from agency website: http://www.ogs.ou.edu/pubsscanned/openfile/OF1_97.pdf
Rights and Permissions	This Oklahoma state government publication is provided for educational purposes under U.S. copyright law. Other usage requires permission of copyright holders.
Language	English
Date created	2012-07-02
Date modified	2012-07-02

Title	OF1_97 ocr 1
Full text	THE GEOLOGY OF THE GULF COASTAL PLAIN IN MARSHALL COUNTY, OKLAHOMA AN INTRODUCTION AND FIELD-TRIP GUIDE OKLAHOMA GEOLOGICAL SURVEY OPEN-FILE REPORT OF1-97
Date created	2012-07-02
Date modified	2012-07-02

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Geology of the Gulf Coastal Plain in Marshall County, Oklahoma : an introduction and field-trip guide.

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