Sheldon - Hart Mountain National Wildlife Refuge: Difference between revisions

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(Caldera)
(Yellowstone Hotspot)
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A 1985 report<ref name="USGS1984">"[http://www.nbmg.unr.edu/scans/0080/00800036.pdf Mineral Resources of the Charles Sheldon Wilderness Study Area, Humboldt and Washoe Counties, Nevada, and Lake and Harney Counties, Oregon]," USGS, 1984.</ref> states that the [[Virgin Valley]] area has opals, and low-grade uranium deposits.  Elsewhere, therea are mercury deposits.
A 1985 report<ref name="USGS1984">"[http://www.nbmg.unr.edu/scans/0080/00800036.pdf Mineral Resources of the Charles Sheldon Wilderness Study Area, Humboldt and Washoe Counties, Nevada, and Lake and Harney Counties, Oregon]," USGS, 1984.</ref> states that the [[Virgin Valley]] area has opals, and low-grade uranium deposits.  Elsewhere, therea are mercury deposits.
Calderas in the area are proposed as the initial impingement of the [https://en.wikipedia.org/wiki/Yellowstone_hotspot Yellowstone hotspot]<ref>Matthew A. Coble and Gail A. Mahood, "[http://iopscience.iop.org/1755-1315/3/1/012002/pdf/ees8_3_012002.pdf New geologic evidence for additional 16.5-15.5 Ma silicic calderas in northwest Nevada related to initial impingement of the Yellowstone hot spot]," Collapse Calderas Workshop, 2008.</ref>.


In 2014, a earthquake swarm<ref>"[http://www.cnn.com/2014/11/08/us/nevada-earthquake-swarm/index.html?c=homepage-t&page=1 A swarm of earthquakes buzzes underground in Nevada]," 08-Nov-2014</ref> occurred in the region, probably associated with a caldera that is detectable via a gravity anomaly<ref name="USGS1984"/>.
In 2014, a earthquake swarm<ref>"[http://www.cnn.com/2014/11/08/us/nevada-earthquake-swarm/index.html?c=homepage-t&page=1 A swarm of earthquakes buzzes underground in Nevada]," 08-Nov-2014</ref> occurred in the region, probably associated with a caldera that is detectable via a gravity anomaly<ref name="USGS1984"/>.

Revision as of 08:00, 11 November 2014

The Sheldon - Hart Mountain National Wildlife Refuge is located north of the Black Rock Desert, near Nevada State Route 8A.

In 2010, this area was the furthest location from a McDonald's in the contiguous US[1].

Geology

The Lone Pine mining district is to the west of the area, straddling the California/Nevada border. The area consists of basalt lava flows[2].

A 1985 report[3] states that the Virgin Valley area has opals, and low-grade uranium deposits. Elsewhere, therea are mercury deposits.

Calderas in the area are proposed as the initial impingement of the Yellowstone hotspot[4].

In 2014, a earthquake swarm[5] occurred in the region, probably associated with a caldera that is detectable via a gravity anomaly[3].


References

External Resources