Hawaii bauxite

Region West, Hawaii
Mineral systems
Deposit types
Critical minerals
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Bauxite areas on the islands of Kauai and Maui as outlined by Patterson (1971) on maps showing the distribution of ferruginous bauxite (figures 10 and 13 in Patterson, 1971).
Identified resources Identified resources for aluminum (bauxite).
Production None recorded.
Status Past evaluation of resources.
Estimated resources Kauai (in 1971): estimated to be 110 million tons ferruginous bauxite containing an average of 25.9% Al2O3, 4.7% SiO2, 39.4% Fe2O3 and 6.7% TiO2.
Geologic maps Patterson (1971), scale 1:24,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Honolua Volcanic Series (West Maui); Kula Volcanic Series (East Maui).
Deposits None.
Evidence from mineral occurrences Unknown.
Geochemical evidence Unknown.
Geophysical evidence No data.
Evidence from other sources Unknown.
Cover thickness and description Exposed.
Authors Jane M. Hammarstrom.
New data needs None requested at this time.
Geologic mapping and modeling needs None requested at this time.
Geophysical survey and modeling needs None requested at this time.
Digital elevation data needs Lidar inadequate.