A proposed national mineral-resource assessment

Thermal Equation of State of Aluminum-Enriched Silicate Perovskite

“…For numbers in parentheses, see Table 1. cation sites in the perovslate sh~~cture, A and B, for a generalized f o i~~~u l a ABO, (21)(22)(23). Ferric iron.…”

USGS research on mineral resources, 1994; Part A, Program and abstracts

“…These magnesian assemblages hint at volcanogenic metasomatism and thus invite exploration for massive sulfide deposits in the Mojave Desert country. The mineral resource assessment of the United States, proposed by McCammon and Briskey (1992), focuses on resources in deposits as yet undiscovered (as opposed to those in extensions of known deposits) and is limited to deposits of the five most commonly explored for metals. The goal of the assessment is to decrease the time required to respond to requests for mineral resource information on the public lands, requests that have come with increasingly shorter deadlines and which involve increasingly larger areas, some with uncertain boundaries.…”

1998 Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States

“…National Mineral Resource Assessments provide a framework for addressing these issues by monitoring the continuing depletion of the Nation's nonrenewable mineral wealth and by contributing information required to manage resource extraction while minimizing consequent environmental effects. For responsible stewardship of the Nation's lands and resources, it is important to know in which areas future mineral resources may be located and how much metal such resources might contain (McCammon and Briskey, 1992).…”