Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
Krempasky, George T.
Hawaii, pp. 157-162 PDF (600.6 KB)
157The Mineral Industry of Hawaii This chapter has been prepared under a Memorandum of Understanding between the Bureau of Mines, U.S. Department of the Interior, and the Department of Land and Natural Resources of the State of Hawaii for collecting information on all nonfuel minerals. By George T. Krempasky1 Hawaii's nonfuel mineral production reached a record high, mainly as a result of cement production. Nonfuel mineral production totaled $53 million in 1978 and $64 million in 1979. Use of mineral commodities—cement, stone, sand and gravel, and pumice— was directly related to the construction industry. Portland cement replaced stone as the leading value commodity produced, reflecting an upsurge in ex-~ ports to west coast ports in response to mainland shortages. Cement was manufactured at two plants in Honolulu County. Pumice and volcanic cinder was mined in Hawaii, Kauai, and Maui Counties. Sand and gravel was mined in Hawaii, Kauai, and Maui Counties. Crushed stone was produced from quarries in Hawaii, Honolulu, Kauai, and Maui Counties. Vermiculite imported from Montana was exfoliated in Honolulu County. Gem stone material, black, pink, and gold coral for use in making jewelry, was harvested from the waters surrounding the Hawaiian Islands. Pacific Concrete & Rock Co., Ltd., closed its rock quarry and ready-mix facifity at Honokohau, near Kona. The company will continue supplying customers from rock quarries at Waimanalo and Makakilo, and from its main concrete facilities in the Sand Island area of Honolulu. Ameron Honolulu Construction and Drayage, Ltd., was granted a 20-year exten sion to its special-use permit for rock quarrying and processing at its Puunene quarry in Maui County. The permit now includes 194 acres. Ocean Minerals Co. of Mountain View, Calif., a consortium of Lockheed Missiles and Space Co., Amoco Minerals Co., and two Dutch companies, announced that its ship had successfully recovered manganese nodules in 17,000 feet of water 800 to 1,000 miles southeast of Hawaii. Nearly 1,000 tons were mined in a continuous stream in the first successful test of a mining system at that depth. Ocean Mining Associates (United States Steel Corp., Union Miniere, S.A., and Sun Oil Co.), in its test program, successfully raised manganese nodules from a 3-mile depth at design capacity of 50 tons per hour. Another consortium of companies from Germany, Japan, the United States, and Canada, operating as Ocean Management, Inc., announced it too had successfully demonstrated continuous mining of nodules. Despite successful tests, mining of the sea floor has been postponed until the Law of the Sea can be clarified. The long-term effort to codify the Law of the Sea, at sessions of the Law of the Sea Conference, has not materialized. The deep seabed mining issue, including the right of private companies to engage in commercial production of manganese nodules, has been a stumbling block. A deep sea mining bill was introduced in the U.S. Congress. The
http://rightsstatements.org/vocab/NoC-US/1.0/| As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright