Activities in 'Arizona'

Porphyry Copper Lifecycles -- A regional approach. (AZ-NM Sonoran Desert region)
description: Task involves studies of natural or human altered dispersion from porphyry Cu deposits in southwestern U.S. and northwestern Mexico, including (1) mapping, description, and genetic chemical modeling of ferricretes, manganocretes, and exotic copper deposits, as they relate to porphyry Cu sources (2) mapping of element dispersion in groundwater from porphyry Cu deposits, and (3) studies of rock/water interaction in the weathering of porphyry Cu deposits.
more information: (Robert J. Kamilli)
Project URL:

Upper Santa Cruz River Watershed
description: Using interdisciplinary earth science to study environmental impacts of mining on the Upper Santa Cruz River Watershed and regional aquifer
more information: (Ian Ridley , GD, MRP, Denver, CO)
Project URL:http://minerals.cr.usgs.gov/

Ray Mine
description: Applications of reflectance spectroscopy
more information: (Roger Clark, GD, MRP, Denver, CO)
Project URL:http://speclab.cr.usgs.gov/PAPERS/ray.mine.1.1998/ray.mine.avproc.html

Pinal Creek
description: Study of seasonal variation in manganese removal by microbial, algal, moss, and fungal populations.
more information: Eleanora Robbins, GD-retired.
Project URL:

Pinal Creek
description: Toxic Substances Hydrology Program research site
more information: (Jud Harvey, WRD, Reston, VA or James Brown, WRD, AZ District, Tucson, AZ)
Project URL:http://toxics.usgs.gov/sites/pinal_page.html

Black Mesa
description: Peabody Western Coal is using groundwater to slurry pump coal via pipeline to a power plant in Laughlin, Nevada. Geohydrology and USGS modeling of the aquifer underlying Black Mesa indicate that groundwater withdrawal greatly exceeds recharge. An expanded-scale study to develop a more representative model is being proposed.
more information: (Bill Steinkampf, WRD, AZ District, Tucson, AZ)
Project URL: