--> Abstract: Type Logs for Formal and Informal Stratigraphic Correlation in the Nebraska Panhandle , Marvin Carlson , Article #90097 (2009)

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Type Logs for Formal and Informal Stratigraphic Correlation in the Nebraska Panhandle

Marvin Carlson1,   W.H. Sydow2

1Nebraska University,  2Nebraska Oil & Gas Commission, Sidney NE

The Panhandle of Western Nebraska has been a depocenter throughout much of geologic history. However, regional tectonic patterns and seaway distributions have changed through time. Stratigraphic complications are created by local facies, basement block faulting, and salt dissolution. There is only a minor rock record for the local pre-Pennsylvanian history. During the remainder of the Paleozoic, much of the Panhandle was contained in the Alliance Basin. As a part of the larger midcontinent seaway, stratigraphy and terminology were carried in from the outcrops of eastern Nebraska and Kansas. Additional terminology has been applied as defined in the outcrop areas of Colorado, Wyoming, and South Dakota. In order to better understand the local stratigraphic patterns and petroleum systems, several wells have been designated as type logs for both the southern and northern Panhandle regions. No new terminology has been created. Instead, consistent unit boundaries have been suggested that are readily recognizable in sample and/or mechanical logs. Additional local terminology is applied for productive zones to facilitate discussion and exploration. These proposed type logs will be available on the web site (NOGCC.NE.GOV/NOGCCONLINEGIS).

 

 

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