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Diagram as published by McKelvey in 1973 [1] Diagram as published by McKelvey in 1976 [2]. A McKelvey diagram or McKelvey box is a visual representation used to describe a natural resource such as a mineral or fossil fuel, based on the geologic certainty of its presence and its economic potential for recovery.
Quantitative mineral-resource assessments are defined as the numerical estimate of the amount, quality, and in some cases, value of undiscovered minerals (that is, metal or industrial mineral) present within a specified area (tract). Their purpose is to provide a framework for making decisions by governments or institutions concerning mineral ...
A Mineral Reserve includes diluting materials and allowances for losses that may occur when the material is mined. [3] Probable Mineral Reserve. A probable mineral reserve is the economically mineable part of an Indicated and, in some circumstances, a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study.
The Geological Survey of Arkansas was first established in 1857, at the direction of Governor Elias Nelson Conway. David Dale Owen was the agencies first geologist. Initially, the agency received funding for only three years, which limited the agencies findings and publications, and the agency was left without funding during the Civil War.
More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. Arkansas Army National Guard; Arkansas Museum of Natural Resources
Following is a list of dams and reservoirs in Arkansas. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
Map of Arkansas (click on map to see larger image) Module:Location map/data/USA Arkansas is a location map definition used to overlay markers and labels on an equirectangular projection map of Arkansas. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
ɑːr k / DEZ-ark) is a city on the White River in the Arkansas Delta, United States. It is the largest city in Prairie County, Arkansas, and the county seat for the county's northern district. Incorporated in 1854, Des Arc's position on the river has shaped its culture, history, and economy, beginning as a major lumber shipping port but ...