well,HooddahThunkit?
Abstract
Mineral surveys were conducted on 41,315 acres
of the Pueblo Mountains Wilderness Study Area (OR-
002-08 l/NV-020-642) in southeastern Oregon and
northern Nevada, at the request of the U.S. Bureau of
Land Management (BLM). The original wilderness
study area is larger than the area on which mineral
surveys were requested. This report discusses the
geology, mineralizing processes, and mineral resource
potential of an area larger than the 41,315-acre area
on which surveys were requested, in order to more
accurately determine the mineral resource potential of
the study area. Throughout this report "wilderness
study area" and "study area" apply only to the 41,315-
acre area on which surveys were requested. The U.S.
Bureau of Mines (USBM) and the U.S. Geological
Survey (USGS) conducted geological, geophysical, and
geochemical surveys during 1984 and 1985 to assess
the mineral resources (known) and mineral resource
potential (undiscovered) of the study area.
No resources were identified in the Pueblo
Mountains Wilderness Study Area. However, the study
indicates high potential for silver and mercury
resources in altered rocks located along two
northwest-trending fault zones that cross the east
boundary of the study area; moderate potential for
gold, silver, copper, mercury, and molybdenum
resources in quartz veins along a fault near the east
boundary of the study area; low potential for silver,
zinc, mercury, and molybdenum resources in
intermediate flows located in the central part of the
study area; and low potential for undiscovered silver
and mercury in silicic tuff. The eastern part of the
study area has low potential for copper, lead, and zinc
resources in metavolcanic and metasedimentary rocks;
and the northeast part of the study area has low
potential for mercury resources in mafic flows. The
resource potential for oil, gas, and geothermal energy
is considered low in the study area.
Part of the Pueblo Mountains east of the study
area has four areas of high mineral resource potential
and several areas of moderate and low mineral
resource potential. All terranes that have high
mineral resource potential outside of the study area
are discussed in the text. Metamorphic rocks and
Quaternary sedimentary deposits exposed along two
segments of the Pueblo Mountains range-front fault, 2
mi east of the study area, have high potential for gold
and silver resources. Rocks adjacent to the Pueblo
caldera ring fault, 1 mi east of the study area, have
high potential for silver, copper, zinc, mercury,
molybdenum, and uranium resources. A
metamorphosed quartz diorite intrusion near the
southeast boundary of the study area has high potential
for gold, silver, copper, and molybdenum resources.
Caldera-fill sedimentary rocks 3 mi east of the study
area have low potential for diatomite and bentonite
resources.
No wonder the Feds want to grab it!