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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.

Filter Total Items: 2592

Porphyry Cu indicator minerals in till as an exploration tool: Example from the giant Pebble porphyry Cu-Au-Mo deposit, Alaska, USA Porphyry Cu indicator minerals in till as an exploration tool: Example from the giant Pebble porphyry Cu-Au-Mo deposit, Alaska, USA

Porphyry Cu indicator minerals are mineral species in clastic sediments that indicate the presence of mineralization and hydrothermal alteration associated with porphyry Cu and associated skarn deposits. Porphyry Cu indicator minerals recovered from shallow till samples near the giant Pebble Cu-Au-Mo porphyry deposit in SW Alaska, USA, include apatite, andradite garnet, Mn-epidote...
Authors
Karen D. Kelley, Robert G. Eppinger, J. Lang, Steven M. Smith, David L. Fey

P is for pit P is for pit

A gravel pit that was a source of happy childhood memories showcases the evolution of mining technology.
Authors
W. H. Langer

S is for sunset crater S is for sunset crater

A scenic trek always includes an interesting landmark - a volcanic cinder cone.
Authors
W. H. Langer

R is for rocksicle R is for rocksicle

A Front Range perspective on managing and shipping aggregates.
Authors
W. H. Langer

Q is for quartz Q is for quartz

This versatile mineral has been used in everything from ceremonial rattles to sonar transducers to quartz watches.
Authors
W. H. Langer

O is for obsidian O is for obsidian

Although a relative youngster in geologic terms, obsidian can change over time from glass to mineral.
Authors
W. H. Langer

Young (<7 Ma) gold deposits and active geothermal systems of the Great Basin: Enigmas, questions, and exploration potential Young (<7 Ma) gold deposits and active geothermal systems of the Great Basin: Enigmas, questions, and exploration potential

Young gold systems in the Great Basin (£ 7 Ma), though not as well studied as their older counterparts, comprise a rapidly growing and in some ways controversial group. The gold inventory for these systems has more than doubled in the last 5 years from roughly 370 tonnes (12 Moz) to 890 tonnes (29 Moz). Although these deposits are characterized by low grades, tonnages can be high and...
Authors
Mark F. Coolbaugh, Peter G. Vikre, James E. Faulds

Disaster risk assessment case study: Recent drought on the Navajo Nation, USA Disaster risk assessment case study: Recent drought on the Navajo Nation, USA

The Navajo Nation is an ecologically sensitive semi-arid to arid section of the southern Colorado Plateau. In this remote part of the United States, located at the Four Corners (Arizona, New Mexico, Colorado, and Utah), traditional people live a subsistence lifestyle that is inextricably tied to, and dependent upon, landscape conditions and water supplies. Soft bedrock lithologies and...
Authors
Margaret Hiza, Klara B. Kelley, Harris Francis, Debra Block

2011 statistical abstract of the United States 2011 statistical abstract of the United States

The Statistical Abstract of the United States, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States. Use the Abstract as a convenient volume for statistical reference, and as a guide to sources of more information both in print and on the Web. Sources of data include the Census Bureau...
Authors
Joseph M. Krisanda

And last comes XYZ And last comes XYZ

Catesian Coordinates can be used to specify the position of any point in three-dimensional space by measuring its distances from three mutually perpendicular planes.
Authors
Bill Langer
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