Digital geologic map of the Thirsty Canyon NW quadrangle, Nye County, Nevada

Metadata Updated: November 12, 2020

This digital geologic map compilation presents new polygon (i.e., geologic map unit contacts), line (i.e., fault, fold axis, dike, and caldera wall), and point (i.e., structural attitude) vector data for the Thirsty Canyon NW 7 1/2' quadrangle in southern Nevada. The map database, which is at 1:24,000-scale resolution, provides geologic coverage of an area of current hydrogeologic and tectonic interest. The Thirsty Canyon NW quadrangle is located in southern Nye County about 20 km west of the Nevada Test Site (NTS) and 30 km north of the town of Beatty. The map area is underlain by extensive layers of Neogene (about 14 to 4.5 million years old [Ma]) mafic and silicic volcanic rocks that are temporally and spatially associated with transtensional tectonic deformation. Mapped volcanic features include part of a late Miocene (about 9.2 Ma) collapse caldera, a Pliocene (about 4.5 Ma) shield volcano, and two Pleistocene (about 0.3 Ma) cinder cones. Also documented are numerous normal, oblique-slip, and strike-slip faults that reflect regional transtensional deformation along the southern part of the Walker Lane belt. The Thirsty Canyon NW map provides new geologic information for modeling groundwater flow paths that may enter the map area from underground nuclear testing areas located in the NTS about 25 km to the east. The geologic map database comprises six component ArcINFO map coverages that can be accessed after decompressing and unbundling the data archive file (tcnw.tar.gz). These six coverages (tcnwpoly, tcnwflt, tcnwfold, tcnwdike, tcnwcald, and tcnwatt) are formatted here in ArcINFO EXPORT format. Bundled with this database are two PDF files for readily viewing and printing the map, accessory graphics, and a description of map units and compilation methods.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date February 5, 2016
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 1998 (publication)
Frequency Of Update AS NEEDED. MAPPING IS CONTINUING IN ADJACENT QUADRANGLES AND A MORE COMPLETE FINAL MAP OF THIS AREA MAY EVENTUALLY BE PRODUCED.

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date February 5, 2016
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 1998 (publication)
Responsible Party U.S. Geological Survey, Geologic Division, National Cooperative Geologic Mapping Team (Point of Contact)
Contact Email
Guid
Access Constraints Use Constraints: none--Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. These data are not to be used at scales larger than 1:24,000., Access Constraints: none
Bbox East Long -116.625
Bbox North Lat 37.25
Bbox South Lat 37.125
Bbox West Long -116.75
Coupled Resource
Frequency Of Update AS NEEDED. MAPPING IS CONTINUING IN ADJACENT QUADRANGLES AND A MORE COMPLETE FINAL MAP OF THIS AREA MAY EVENTUALLY BE PRODUCED.
Licence Although this digital spatial data has been subjected to rigorous review and is substantially complete, it is released on the condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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