Geosphere; February 2008; v. 4; no. 1;
p. 218-246; DOI: 10.1130/GES00126.1
© Geological Society of America
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Figure 10. Google EarthTM image of the large jasperoid (yellow arrow) in the Jerritt Canyon district (F, Fig. 6) identified as a small quartz anomaly (Fig. 9). View is toward the north. Note scale at bottom left. Pointer 41°23'16.31''N, 115°58'17.10''W. Elevation 7774 ft. Eye altitude 8562 ft. Scale bar is 497 ft (151.5 m). Image © 2007 DigitalGlobe; © 2007 Europa Technologies; © 2007 TerraMetrics. The jasperoid is localized by the Bidart anticline and is hosted in unit 1 of the Hanson Creek Formation (Silurian–Ordovician) that was silicified during the Eocene (Hofstra et al., 1999). Inset shows field photograph of jasperoid from Eliason and Wilton (2005).
Copyright © 2008 by Geological Society of America
