Blanca Dinero

Occurrence, Inactive

Commodities and mineralogy

Main commodities Asbestos

Geographic location

Quadrangle map, 1:250,000-scale LC
Quadrangle map, 1:63,360-scale B-3
Latitude 60.35
Longitude -154.11
Nearby scientific data Find additional scientific data near this location
Location and accuracy Occurrence is about 5.8 km west of the mouth of Portage Creek, in Sec. 15, T. 3 N., R. 28 W., of the Seward Meridian. Accurate within 1,600 meters.

Geologic setting

Geologic description

Only indication of occurrence is report by U.S. Bureau of Mines (1995) as an asbestos deposit.
The bedrock in the vicinity of the occurrence is Tertiary volcanic rocks. The rocks of this unit include: rhyolitic breccia, ash-flow tuff, flows, and intrusive rocks and subordinate mafic to intermediate flows (Nelson and others, 1983; unit Tv). Potassium-argon ages for this unit (Tv) range from 56.2 to 62.7 m.y. indicating a Tertiary age for these rocks (Eakins and others, 1978).
Geologic map unit (-154.11222003436, 60.3493368062269)
Mineral deposit model Unknown
Age of mineralization Tertiary or younger; potassium-argon ages for this unit (Tv) range from 56.2 to 62.7 m.y. (Eakins and others, 1978).
Alteration of deposit Unknown

Production and reserves

Workings or exploration Unknown
Indication of production None
Reserve estimates No reserves
Production notes No production

Additional comments

MAS/MILS sequence number 0020930010 (Bureau of Mines, 1995). Site is in Lake Clark National Park and Preserve.

References