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Retired geologist Henry Gray is still teaching at Indiana University and doing research at 100.

Research into the deep biosphere requires an understanding of both the microbial community at a given site and the geochemical and hydrological factors that support that microbial community. To highlight the interplay between geochemistry and microbiology in these deep environments, we characterized the hydrogeologic and geochemical systems of a 2.7 Ga banded iron formation within the Canadian Shield in the Soudan Underground Mine State Park in Minnesota, USA, a site known to host a lithotrophic microbial community. Calcium-sodium-chloride brines, characteristic of deep groundwaters throughout...

HIGHLIGHTS: First ever high-resolution model of Induced Polarization (“IP”) geophysical data completed, revealing multiple large-scale, near-surface...

Mountain Pass Mine, Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA : A baryte-Ce-REE-Au-Ag-Pb deposit/mine located in secs. 12 & 13, T16N, R13E, SBM, 1.5 km (0.9 miles) NE of Mountain Pass (town), immediately N of Interstate highway 15, and about 15 miles W of the ...

Fremont Gold Ltd.: Fremont Receives Initial Drill Results from Coyote Target, North Carlin Gold Project Fremont" or the " Company") is pleased to announce that the Company has received the first set of assay and geochemical results from the recent reverse circulation drill program at the North Carlin gold project (" North Carlin" or the " Project"). The Project is located at the northern end of Nevada's prolific Carlin Trend, one of the most prolific gold mining districts in the world. Highlights: Results were returned on two reconnaissance reverse circulation drill holes drilled within the C...