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U.S. Geological Survey Open File Report 2011-1084

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### In cooperation with the Southern Nevada Water Authority (SNWA)

# Principal Facts for Gravity Stations Collected in 2010 from White Pine and Lincoln Counties, East-Central Nevada

#### By Edward A. Mankinen and Edwin H. McKee

| Abstract
      Increasing demands on the Colorado River system within the arid Southwestern United States have focused attention on finding new, alternative sources of water.  Particular attention is being paid to the eastern Great Basin, where important ground-water systems occur within a regionally extensive sequence of Paleozoic carbonate rocks and in the Cenozoic basin-fill deposits that occur throughout the region.  Geophysical investigations to characterize the geologic framework of aquifers in eastern Nevada and western Utah began in a series of cooperative agreements between the U.S. Geological Survey and the Southern Nevada Water Authority in 2003.  These studies were intended to better understand the formation of basins, define their subsurface shape and depth, and delineate structures that may impede or enhance groundwater flow.  We have combined data from gravity stations established during the current study with previously available data to produce an up-to-date isostatic-gravity map of the study area,  using a gravity inversion method to calculate depths to pre-Cenozoic basement rock and to estimate alluvial/volcanic fill in the valleys. | Last modified July 11, 2011 First posted May 25, 2011
-  **Report** PDF  (2.8 MB) 
-  **Data** folder .  This folder contains the data spreadsheet in several file formats (350 kB total) 
- This report is available only on the Web.

**For additional information:**Contact Information, Western Region Geology and Geophysics Science Center—Menlo ParkU.S. Geological Survey345 Middlefield Road, MS-989Menlo Park, CA 94025-3591http://geomaps.wr.usgs.gov/

Part of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
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### Suggested citation:

Mankinen, E.A., and McKee, E.H., 2011, Principal facts for gravity stations collected in 2010 from White Pine and Lincoln Counties, east-central Nevada:  U.S. Geological Survey Open File Report 2011-1084.

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### Contents

Abstract

Introduction

Geologic Setting

Procedures

Gravity Data

Gravity Inversion

Conclusions

Acknowledgments

References Cited

data file

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U.S. Department of the Interior |            U.S. Geological Survey           	URL: *http://pubsdata.usgs.gov/pubs/of/2011/1084/index.html*            Page Contact Information: GS Pubs Web Contact           	Page Last Modified: Wednesday, 07-Dec-2016 23:41:03 EST