MINING RELATED SUBSIDENCE IN CRESCENT VALLEY, NEVADA, FROM RADAR INTERFEROMETRY: IMPLICATIONS FOR GEODYNAMIC INTERPRETATION OF PERMANENT GLOBAL POSITIONNING SYSTEM VELOCITIES

2006 Philadelphia Annual Meeting (22–25 October 2006)
Paper No. 117-7

Presentation Time: 1:30 PM-5:30 PM

MINING RELATED SUBSIDENCE IN CRESCENT VALLEY, NEVADA, FROM RADAR INTERFEROMETRY: IMPLICATIONS FOR GEODYNAMIC INTERPRETATION OF PERMANENT GLOBAL POSITIONNING SYSTEM VELOCITIES
GOURMELEN, Noel¹, AMELUNG, Falk¹, LANARI, Riccardo², CASU, Francesco², and MANZO, MariaRosaria², (1) RSMAS, Univ of Miami, 4600 Rickenbaker causeway, Miami, FL 33149, ngourmelen@rsmas.miami.edu, (2) IREA, CNR, Via Diocleziano, 328, Napoli, 80124, Italy Interferometry Synthetic Aperture Radar (InSAR) reveals high rate and frequency of ground motion link to mining and agricultural related water extraction in Nevada, USA. The deformation rates within the basins reach several tens of centimeters in the 1992-2001 period. A two dimensional inversion from SAR data reveals centimeter scale horizontal deformation on the edge of a subsidence system. Subsidence and vertical deformation also affects bedrock on which GPS permanent stations are setup for regional tectonic experiment. InSAR reveals that the Basin and Range geodetic network (BARGEN) permanent GPS station LEWI‘s velocity is likely to represent in part the ground motion related to mining activities in the nearby Crescent Valley area thus introducing bias to geodynamic interpretation from LEWI's velocity.
2006 Philadelphia Annual Meeting (22–25 October 2006) General Information for this Meeting

Session No. 117 GPS and InSAR in Groundwater Investigations (Posters) Pennsylvania Convention Center: Exhibit Hall C 1:30 PM-5:30 PM, Monday, 23 October 2006 Geological Society of America Abstracts with Programs, Vol. 38, No. 7, p. 291
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