|Current site name||New Adit|
|Related records||10136138, 10113116|
|Geographic coordinates:||-131.9829, 55.6078 (WGS84)|
|Relative position||The New Adit prospect is at an elevation of about 350 feet, 0.3 mile east of Falls Creek and and about 0.7 mile north-northwest of the mouth of Falls Creek. The site is in section 19, T. 72 S., R. 88 E., of the Copper River Meridian. It corresponds to loc. 256 in Maas and others (1995, fig. 46). The location is accurate within 0.1 mile. ? Also see Additional comments.|
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|Materials||Type of material|
|USGS model code||36a|
|Deposit model name||Low-sulfide Au-quartz vein|
|Mark3 model number||27|
|USGS model code||19c|
|BC deposit profile||E03|
|Deposit model name||Distal disseminated Ag-Au|
|Mark3 model number||18|
|Host or associated||Host|
|Rock type||Metamorphic Rock > Schist|
|Agency||Database name||Acronym||Record ID||Notes|
|USGS||Mineral Resources Data System||MRDS||A012310|
|USGS||Alaska Resource Data File||ARDF||KC035|
Brooks, A.H., 1902, Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch of the geology of southeastern Alaska: U.S. Geological Survey Professional Paper 1, 120 p.
Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.
Cobb, E.H., and Elliott, R.L., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-1053, 154 p.
Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.
Maas, K.M., Bittenbender, P E., and Still, J.C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U.S. Bureau of Mines Open-File Report 11-95, 606 p.
Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.
|Subject category||Comment text|
|Deposit||Model Name = Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a); Distal disseminated Ag-Au? (Bliss, 1992; model 19c)|
|Deposit||Model Number = 36a, 19c?|
|Deposit||Other Comments = This record is based mainly on a description of the New Adit prospect by Maas and others (1995, loc. 256 on fig. 46). Earlier reports (Brooks, 1902, p. 57: summarized in Elliott and others, 1978, loc. 35; and in Cobb and Elliott, 1980, p. 64) place the Last Chance prospect (KC033) at approximately the same location at the New Adit, but Maas and others indicate that the Last Chance instead is adjacent to the Old Glory mine (KC033).|
|Reporter||30-JUN-1999||H.C. Berg||U.S. Geological Survey|