| Abstract: | Large low-grade ore bodies have been discovered in Copper Basin, Ariz., and a large copper-mining operation is anticipated in the near future. Hydrologic data are being collected to provide the data base necessary to determine the effects of a potential mining operation on the water resources of the area. The area of potential depletion or contamination of water supplies is the 50-square-mile alluvial slope downgradient from Copper Basin. In the Copper Basin area the streams generally are dry, except for the perennial flow in a 3-mile-long reach of Kirkland Creek, where the base flow ranges from about 1 to 3 cubic feet per second. The water in the alluvium, which is more than 1,000 feet thick in places, generally is under confined conditions. The depth to water in wells ranges from less than 10 to 675 feet below the land surface. Near the center of the area, test wells penetrate a clay confining bed at the base of the alluvium and an underlying sequence of volcanic rocks, which is more than 1 ,000 feet thick and contains water under confined conditions. Pump tests indicate that the confining bed forms a barrier between the water in tha alluvium and the water in the volcanic rocks and that, initially, pumping from the volcanic rocks would not affect the water level in the alluvium. (Woodard-USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 11435 |
| Citation Author: | Thomsen, B. W.; Stulik, R. S. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | - |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | vi, 51 p., 1 sheet :fold. ill., maps (1 fold. in pocket) ;27 cm. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 78-413 |
| Citation Search Results Text: | Hydrologic data for the Copper Basin area, a potential mining area in Yavapai County, Arizona; 1978; OFR; 78-413; Thomsen, B. W.; Stulik, R. S. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | Hydrologic data for the Copper Basin area, a potential mining area in Yavapai County, Arizona; 1978; OFR; 78-413; Thomsen, B. W.; Stulik, R. S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
