Region West, Southwest
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Potential for large igneous province (LIP)-related magmatic mineral deposits associated with ultramafic to mafic layered intrusions. Possible mineralization includes reef-type PGE low sulfide deposits and contact-type Ni-Cui±Co±PGE sulfide deposits. Oil and gas drilling drilled 4,460 meters of Proterozoic layered intrusion near the Central Basin Platform in West Texas.
Identified resources None.
Production None.
Status No mining or current exploration. Academic studies of the cuttings.
Estimated resources None.
Geologic maps Surface geologic maps are not applicable as intrusion was encountered at depth of 1,400 m below the surface.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Mafic cumulates that show cyclic layering. Large volume of igneous rock expected to extend over a large area.
Deposits None.
Evidence from mineral occurrences None.
Geochemical evidence Mineralogy and other data that show cyclic layering in mafic/ultramafic drill core. No geochemical data for base and precious metals.
Geophysical evidence Inadequate Rank 4 and 5 aeromagnetic and aeroradiometric coverage.
Evidence from other sources None.
Comments Deep potential resource; no known mineralization in this area or in Salt River basin, Arizona, where similar rocks are at surface.
Cover thickness and description 1,400 meters of overlying rocks.
Authors Michael L. Zientek.
New data needs If cuttings are available, should be analyzed for PGE, Cu, Ni, and S (and other multielement major and trace element packages).
Geologic mapping and modeling needs Would like to model the geothermal gradient in the area.
Geophysical survey and modeling needs High-resolution, Rank 1 aeromagnetic and aeroradiometric surveys.
Digital elevation data needs Not applicable. Intrusion only intersected in oil and gas well.