Surface and subsurface microgravity data in the vicinity of Sanford Underground Research Facility, Lead, South Dakota

Open-File Report 2015-1043
By: , and 

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Abstract

Absolute gravity data were collected at 32 stations in the vicinity of the Sanford Underground Research Facility from 2007 through 2014 for the purpose of monitoring groundwater storage change during dewatering of the former Homestake gold mine in the Black Hills of South Dakota, the largest and deepest underground mine in North America. Eight underground stations are at depths from 300 feet below land surface to 4,850 feet below land surface. Surface stations were located using Global Positioning System observations, and subsurface stations were located on the basis of maps constructed from survey measurements made while the mine was in operation. Gravity varies widely at many stations; however, no consistent temporal trends are present across all stations during the 7-year period of data collection.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Surface and subsurface microgravity data in the vicinity of Sanford Underground Research Facility, Lead, South Dakota
Series title Open-File Report
Series number 2015-1043
DOI 10.3133/ofr20151043
Year Published 2015
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Arizona Water Science Center
Description vi, 32 p.
Country United States
State South Dakota
City Lead
Online Only (Y/N) Y
Additional Online Files (Y/N) N