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Surprise Creek Occurrence, Bonnifield District, Denali Borough, Alaska, USA

Latitude: 63°55'48"N
Longitude: 148°19'12"W

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Location: This occurrence is at an elevation of about 4,100 feet on Dexter Creek, a tributary of the Totatlanika River. The map site is in the SW1/4 of sec. 27, T. 11 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1 mile.
Geology: The country rocks in the general area of this occurrence are Lower Paleozoic or possibly Upper Precambrian schists and younger Paleozoic Keevy Peak Formation. The deposit is in schist, and consists of stratiform layers of massive galena and sphalerite, accompanied by quartz.
Workings: There has been only surface exploration to date.
Age: Mineralization is syngenetic with the Lower Paleozoic or possibly Upper Precambrian hostrocks.

Commodities (Major) - Pb, Zn
Development Status: None
Deposit Model: Kuroko massive sulfide(?) (Cox and Singer, 1986; model 28a)

Mineral List

Galena

Quartz

Sphalerite

3 entries listed. 3 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Alaska, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 4th Jul 2011 14:00:00