The midcontinent of the United States

Book · Mon Jan 01 00:00:00 EST 1990

OSTI ID:5414542

Pratt, W P; Sims, P K ^[1]

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1. Geological Survey, Reston, VA (United States)

The Olympic Dam (Roxby Downs) deposit in South Australia is one of the world's largest ore deposits, containing an estimated 32 million tonnes Cu, 1.2 million tonnes of uranium oxide, 1.2 million kg Au, and significant concentrations of rare-earth elements and silver. Host rocks are multistage breccias containing a large component of granitic and some possible felsic debris in a hydrothermal iron oxide-dominated matrix. The Precambrian basement in the Midcontinent region, especially the St. Francois and Spavinaw Proterozoic anorogenic granitic terranes in and adjacent to southern Missouri, may have potential for an olympic dam-type deposit. In February 1988, the U.S. Geological Survey convened a workshop in Denver, Colo., to review current data and hypotheses on the type deposit and on the permissive Midcontinent terranes and to design plans for a research project to try to identify potential olympic dam target regions in the Midcontinent. This book presents four of the papers from the workshop (three full texts and one abstract) and one modified paper, as well as the integrated project proposal. An epilogue contains two short papers constituting an update on one aspect of the project proposal: mapping of the possibly analogous Pea Ridge iron ore deposit of Southeast Missouri.

• OSTI ID: 5414542
• Resource Relation: Other Information: Bulletin B-1932
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING
POLICY AND ECONOMY
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
COLORADO
ORE COMPOSITION
MISSOURI
GEOCHEMICAL SURVEYS
OLYMPIC DAM MINE
SOUTH AUSTRALIA
GOLD
IRON ORES
RARE EARTHS
RESEARCH PROGRAMS
RESERVOIR ROCK
RESOURCE POTENTIAL
SILVER
URANIUM OXIDES
US GS
ACTINIDE COMPOUNDS
AUSTRALASIA
AUSTRALIA
CHALCOGENIDES
DEVELOPED COUNTRIES
ELEMENTS
FEDERAL REGION VII
FEDERAL REGION VIII
METALS
MINES
NATIONAL ORGANIZATIONS
NORTH AMERICA
ORES
OXIDES
OXYGEN COMPOUNDS
SURVEYS
TRANSITION ELEMENTS
UNDERGROUND FACILITIES
URANIUM COMPOUNDS
URANIUM MINES
US DOI
US ORGANIZATIONS
USA
290400* - Energy Planning & Policy- Energy Resources
050100 - Nuclear Fuels- Reserves
Exploration
& Mining
290500 - Energy Planning & Policy- Research
Development
Demonstration
& Commercialization