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Publications

Results from our Program’s research and minerals information activities are published in USGS publications series as well as in outside journals.  To follow Minerals Information Periodicals, subscribe to the Mineral Periodicals RSS feed.

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Hyperspectral surveying for mineral resources in Alaska Hyperspectral surveying for mineral resources in Alaska

Alaska is a major producer of base and precious metals and has a high potential for additional undiscovered mineral resources. However, discovery is hindered by Alaska’s vast size, remoteness, and rugged terrain. New methods are needed to overcome these obstacles in order to fully evaluate Alaska’s geology and mineral resource potential. Hyperspectral surveying is one method that can be...
Authors
Raymond F. Kokaly, Garth Graham, Todd Hoefen, Karen D. Kelley, Michaela R. Johnson, Bernard Hubbard

The Pilot Valley shoreline: An early record of Lake Bonneville dynamics The Pilot Valley shoreline: An early record of Lake Bonneville dynamics

The Pilot Valley shoreline is named for distinctive gravel beaches on the eastern, northern, and western sides of Pilot Valley playa, Utah. The shoreline has been identified across the Bonneville basin where it is characterized by one to three beach crests between ~ 1305 and 1309 m elevation, all overlain by deep-water marl of Lake Bonneville. It thus represents the lowest and earliest...
Authors
David M. Miller, Geoffrey Phelps

Contemporary deformation in the Yakima fold and thrust belt estimated with GPS Contemporary deformation in the Yakima fold and thrust belt estimated with GPS

Geodetic, geologic and palaeomagnetic data reveal that Oregon (western USA) rotates clockwise at 0.3 to 1.0° Ma−1 (relative to North America) about an axis near the Idaho–Oregon–Washington border, while northeast Washington is relatively fixed. This rotation has been going on for at least 15 Ma. The Yakima fold and thrust belt (YFTB) forms the boundary between northern Oregon and central
Authors
Robert McCaffrey, Robert King, Ray Wells, Matthew Lancaster, M. Miller

Potash in 2015 Potash in 2015

No abstract available.
Authors
Stephen Jasinski

Pumice in 2015 Pumice in 2015

No abstract available.
Authors
Robert Crangle

Boron in 2015 Boron in 2015

No abstract available.
Authors
Robert Crangle

Accretionary lapilli: what’s holding them together? Accretionary lapilli: what’s holding them together?

Accretionary lapilli from Tagus cone, Isla Isabela, Galápagos were analyzed using scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) techniques. Our main findings are (1) the lapilli formed and hardened in a few minutes while still aloft in the dispersing eruption column. (2) Palagonite rinds developed first on the basaltic glass clasts, and subsequently...
Authors
Paul Adams, David Lynch, David Buesch
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