University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Ecology and Natural Resources Collection

Page View

Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)

Pittman, Tom L.
Alaska,   pp. 43-51 ff. PDF (952.3 KB)


Page 47

Table 4.—Alaska: Placer production of gold 
Year 
~ 
 Mines producing 
~ 
Material1 
treated 
(thousand 
cubic yards) 
Gold recovered 
Troy 
ounces 
Value 
(thousands) 
A 
va~~ cubic yard 
1975                            
23 
1,751 
14,980 
$2,419 
$1382 
1976                            
1977                            
1978                            
1979                            
26 
22 
21 
14 
1,699 
1,800 
1,455 
778 
22,605 
18,924 
18,599 
6,675 
2,833 
2,807 
3,600 
2,053 
1.667 
1.559 
2.474 
2.639 
' Excludes material treated primarily for 
the recoveryof platinum. 
THE MINERAL INDUSTRY OF ALASKA 
47 
often referred to as the Delta mineral belt. Major values are in zinc and
lead, with minor amounts of copper and silver. Thirtyseven deposits have
been reported in the district through 1979. They are described as stratiform
sulfide deposits. 
 There were extensive exploration and drilling programs in the Delong Mountains,
a western part of the Brooks Range about 80 miles northwest of Kotzebue.
A group composed of General Crude, Houston Oil and Minerals, and WGM Inc.,
operated two exploration camps on their properties in 1979. After the 1978
season, they announced having 19 million tons of evaluated reserves averaging
3.35% lead, 9.3% zinc, and 1.4 troy ounces of silver per ton in the Wulik
River area. Cominco American, Inc., continued drillingits Lik and Su properties.
 Geologists of the Bureau of Mines discovered several mineral occurrences
along the southern part of the National Petroleum Reserve of Alaska. They
were engaged in mineral resource work on Reserve lands that are withdrawn
from mineral entry. These occurrences are similar in mineralogy and character
to the Red Dog - Wulik River deposits. Work by the Geological Survey suggests
similarities in the respective host rocks. These discoveries may indicate
a possible major mineral belt extending at least 120 miles easterly along
the north side of the Brooks Range. This area is in the Misheguk Mountain
and the Howard Pass Quadrangles, about 200 miles northeast of Kotzebue. 
 Anaconda has located prospects near Mount Schwatka, northeast of Fairbanks.
The deposit area was subsequently included in the Yukon Flats National Monument.
 Geologic trends favorable for zinc-leadcopper-silver deposits have been
identified in southeast Alaska. One such trend on 
Admiralty Island, extends from north of Greens Creek southerly past Gambier
and Pybus Bays. Pan Sound Joint Venture (Noranda) has identified several
prospects north of Greens Creek, and the "Greens Creek" prospect
just south
of it. The Anaconda Co. has the Pyrola Group about 6 miles south of the Greens
Creek deposit, and WGM Inc., and some associates have several prospects west
of Gambier and Pybus Bays. Almost 1,000 claims have been located along a
similar trend on Kupreanof Island to the south of Admiralty Island and west
of Petersburg. Locators included Amoco Minerals Co., Mapco,and Resource Associates
of Alaska. Geologic work and some drilling was done during 1978 and 1979.
BP Alaska Exploration, Inc., explored a group of claims on Zarembo, the next
island south of Kupreanof. 
 The Riverside mine, north of Hyder, was examined and sampled by Nor-Quest
Resources.Workings below the mill adit level were pumped out for the first
time since 1927. The mine has produced lead, zinc, silver, gold, and tungsten.
 Molybdenum.—U.S. Borax & Chemical Corp. has been developing
a
world-class molybdenite deposit at Quartz Hill, about 45 miles east of Ketchikan.
After the end of the 1979 field season, U.S. Borax reported that since discovery
in 1974, it has drilled 100,000 feet of core hole which indicated inplace
reserves of 1.3 billion tons grading 0.13% molybdenite at 0.05% cutoff. This
is equivalent to 2 billion pounds of contained molybdenum and is a 20% increase
in the estimated in-place reserves over that reported at the end of 1978.
U.S. Borax has invested $14.5 million in its Quartz Hill project to date.
The proposed budget for 1980 is over $5 million. A major portion of the budget
will be for continuation of the 


Go up to Top of Page