|Quadrangle map, 1:250,000-scale||BC|
|Quadrangle map, 1:63,360-scale||B-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This unnamed occurrence (Elliott and Koch, 1981, p. 8, loc. 12) is at an elevation of about 2400 feet on a ridge between Blue River and West Fork of Blue River. It is on or near the boundary of Sections 24 and 25, and about 0.4 mile south-southwest of the Alaska-British Columbia boundary. The location is accurate to within about a quarter of a mile.|
The country rocks in the general area of this occurrence comprise a stock of Eocene leucocratic quartz monzonite and granodiorite (Elliott and Koch, 1981; Koch, 1996).The occurrence consists of a float sample collected by the U. S. Geological Survey in 1979 (Elliott and Koch, 1981, loc. 12). The sample consists of aplite rubble that contains up to about 0.5% visible molybdenite. All of the rubble at the locality is aplite, but not all of it contains visible molybdenite. The association of molybdenite, aplite, and leucocratic quartz monzonite suggests a porphyry-molybdenum deposit model.
|Geologic map unit||(-130.981708010493, 56.3896552543115)|
|Mineral deposit model||Porphyry molybdenum (Cox and Singer, 1986; model 21b)?|
|Mineral deposit model number||21b?|
|Age of mineralization||Eocene?|
|Indication of production||None|
Additional commentsThis occurrence is in Misty Fiords National Monument.
|Reporters||H. C. Berg (Fullerton, California)|
|Last report date||5/17/1998|