|Quadrangle map, 1:250,000-scale||SP|
|Quadrangle map, 1:63,360-scale||A-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The SAL prospect is located 0.1 mile east-northeast from the center of section 6, T. 19 N., R. 17 E., of the Kateel River Meridian. Located approximately 8 kilometers to the west of the Sun deposit (SP039) at approximately 700 feet elevation. This location is accurate to within 500 feet.|
The SAL prospect is located about 8.5 kilometers west of the Sun project (SP039). The prospect is characterized by volcanogenic massive-sulfide mineralization. The property is located at the eastern end of the Ambler district. The massive sulfides are comprised primarily of sphalerite, tennantite, galena, chalcopyrite, bornite, enargite, pyrite, pyrrhotite, and arsenopyrite. Mineralization occurs in a northeast-trending belt of felsic metavolcanic and metasedimentary rocks. Massive-sulfide mineralization is primarily hosted within the felsic schist (Dsf) and sparsely porphyritic rhyolite (Dr) units of the Ambler Sequence (Hitzman and others, 1982, Gustin and Ronning, 2013).At SAL, strong alteration with strong iron staining within the highly prospective rock package has been mapped for approximately 200 meters along strike before disappearing underneath cover. There is extensive talus covering. Grab samples from gossan and altered rocks in the area have returned assay values of up to 1.8 percent copper, 1.48 percent lead, 1.34 percent zinc, 42 grams of silver per tonne, and 0.54 grams of gold per tonne (Andover Mining Corporation, 2012a).
|Geologic map unit||(, )|
|Mineral deposit model||Kuroko massive sulfide (Cox and Singer, 1986; model 28a)|
|Mineral deposit model number||28a|
|Age of mineralization||Devonian, based on age of host rock (Hitzman and others, 1982, Gustin and Ronning, 2013).|
|Alteration of deposit||Iron oxide alteration (Andover Mining Corporation, 2012a).|
|Workings or exploration||Exploration has consisted of field mapping and sampling of rock and soil, completed mostly during the mid 1970s through early 1980s. Andover Mining Corporation completed one diamond core drillhole in 2012 at SAL, which targeted outcropping mineralization that was mapped and sampled by Andover’s field team during the 2012 reconnaissance efforts at the Sun District. The drillhole included 2.1 meters of 0.69 percent copper, 0.84 percent lead, 2.99 percent zinc, 19.9 grams of silver per tonne, and 0.126 grams of gold per tonne (Andover Mining Corporation, 2012b).|
|Indication of production||None|
|Reserve estimates||None, a 2013 resource estimate was made for nearby Sun (SP039) (Gustin and Ronning, 2013).|
Andover Mining Corp., 2012, Andover Identifies Six New VMS Prospects on Sun Property, Ambler Mining District, Alaska: (News release posted on www.sedar.com, Aug. 8, 2012). https://www.sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00019735 (as of January 31, 2018).
Andover Mining Corp., 2012b, Andover Announces Discovery of a Second New Massive Sulfide System at its Wholly Owned Sun District, Ambler Mineral Belt, Alaska: (News release posted on www.sedar.com, Sept. 24, 2012) https://www.sedar.com/GetFile.do?lang=EN&docClass=8&issuerNo=00019735&issuerType=03&projectNo=01962930&docId=3195258 (as of February 1, 2018).
Cox, D.P., and Singer, D.A., eds., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p.
Gustin, M.M., and Ronning, Peter, 2013, Technical Report on the Sun Project, Brooks Range, Alaska, 136 p.: (posted on www.sedar.com, Oct. 3, 2013) http://www.sedar.com/GetFile.do?lang=EN&docClass=24&issuerNo=00019735&fileName=/csfsprod/data147/filings/02118405/00000001/C%3A%5CSEDAR%5CFILINGS%5CAOX%5CAOXSunTechnicalReport.pdf (as of December 4, 2014).
|Reporters||A. Angel and V.C. Zinno (Alaska Earth Sciences, Inc.)|
|Last report date||12/8/2014|