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An integrated geophysical study of the Estancia Basin, central New Mexico

Ronald Barrow and G. Randy Keller
An integrated geophysical study of the Estancia Basin, central New Mexico (in Basins of the Rio Grande Rift; structure, stratigraphy, and tectonic setting, G. Randy Keller (editor) and Steven M. Cather (editor))
Special Paper - Geological Society of America (1994) 291: 171-186

Abstract

This study focuses on the interpretation of seismic reflection lines, gravity, and well data in the Estancia Basin, which is located along the eastern margin of the Rio Grande rift in central New Mexico. Major new data introduced are seven seismic reflection lines provided by the Mobil Exploration and Production Company. The basin began to form during Late Mississippian and Early Pennsylvanian uplift of the Ancestral Rocky Mountains. Laramide-age thrusting and folding occurred west of the basin and may have caused strike-slip movements in the basin. Limited packages of Tertiary rocks occur in local outcrops, and small normal faults associated with the Rio Grande rift are the latest structural features in the basin. An integrated interpretation of the seismic reflection data and other geophysical and geological data make the following observations and interpretations possible: (1) the Pennsylvanian basin is a narrow, fault-bounded trough with a north-south trend; (2) the eastern boundary of this trough is a strike-slip fault that was probably active during formation of the basin; (3) this strike-slip fault was also probably active in the Laramide and possibly active in the Precambrian; (4) there are many prominent dipping reflectors in the Precambrian basement that may represent ductile shear zones, and (5) the effects of the Rio Grande rifting in the area were minor.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 291
Title: An integrated geophysical study of the Estancia Basin, central New Mexico
Title: Basins of the Rio Grande Rift; structure, stratigraphy, and tectonic setting
Author(s): Barrow, RonaldKeller, G. Randy
Author(s): Keller, G. Randyeditor
Author(s): Cather, Steven M.editor
Affiliation: University of Texas at El Paso, Department of Geological Sciences, El Paso, TX, United States
Affiliation: University of Texas at El Paso, Department of Geological Sciences, El Paso, TX, United States
Pages: 171-186
Published: 1994
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 0-8137-2291-8
References: 25
Accession Number: 1995-007229
Categories: Structural geologyApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., 1 table, sketch maps
N34°30'00" - N35°00'00", W106°10'00" - W105°30'00"
Secondary Affiliation: New Mexico Bureau of Mines and Mineral Resources, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 199503
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