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Magnetotelluric Data Release for Locating the Archean/Proterozoic Suture Zone, East-Central Tooele County, Utah

By Jackie M. Williams and Brian D. Rodriguez

 

U.S. Geological Survey Open-File Report 03-495
thumbnail image of figure 1. Magnetotelluric profile index map in Toole County, Utah
Version 1.0

 

Many sediment-hosted gold deposits occur along linear trends in the Great Basin. The distribution and genesis of these deposits in the Great Basin is not fully understood. In general, most models agree that regional structures played an important role in the spatial distribution of these deposits (e.g. Arehart and others, 1993; Ilchik and Barton, 1997; Radtke, 1985; Shawe, 1991; Sillitoe and Bonham, 1990; Tosdal, 1998). To investigate crustal structures that may be related to the genesis of gold deposits in the Great Basin, a regional south-north profile of magnetotelluric (MT) soundings was acquired in 2003. Resistivity modeling of the MT data can be used to investigate buried structures or sutures that may have influenced subsequent tectonism, sedimentation, and regional fluid flow. The goal of this survey is to infer the location of the Archean/Proterozoic suture zone in east-central Tooele County, Utah. The purpose of this report is to release the MT sounding data; no interpretation of the data is included.

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OFR-03-495 PDF file (3.2 MB)  
Text Only PDF file (350 KB) (This version of the report is accessible as defined in Section 508.)

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