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The California Geological Survey has had many names over its history. The original Geological Survey of California was replaced in April 1880 by the new California State Mining Bureau. This was renamed the Division of Mines in 1927. In 1962 the division's name was expanded to be California Division of Mines and Geology, a name that lasted until ...
The Surface Mining and Reclamation Act of 1975 (SMARA) gave the Department of Conservation responsibilities related to reclamation of mined lands. Initially these responsibilities were allocated to the Division of Mines and Geology, working in concert with the State Mining and Geology Board and local governments.
After the September 2009 elections [clarification needed] the government formed the new Ministry of Mines and Geology, Ministère des Mines et de la Géologie, with Pierre Oba as Minister. In early 2010, the Canadian exploration company NGEx Resources Inc was granted two exploration licences for copper-lead-zinc, over the Reneville and ...
The Oregon Department of Geology and Mineral Industries (DOGAMI) is the agency of the government of the U.S. state of Oregon responsible for collecting, maintaining and disseminating geologic information, and regulation of industries which commercially develop the state's geological resources, including Natural gas, Crude oil, and other Mineral exploration and Mining.
Porter (1932) [4] Wikimedia Commons has media related to Sisquoc Formation. The Sisquoc Formation is a sedimentary geologic unit widespread in Southern California, both on the coast and in mountains near the coast. Overlying the Monterey Formation, it is of upper Miocene and lower Pliocene age (from about 4 to 6 million years old). [5]
The Department of Mines and Geology has discovered large bodies of Kimberlite intrusion in northern Lesotho. These are reported as 405 kimberline bodies constituted by 30 pipes, 343 dykes, and 23 blows (dyke enlargements), which amounts to one Kimberlite body per 21 square kilometres (8.1 sq mi) area of the country. There are also smaller ...
Systematic geological mapping and mineral exploration were done by the Nepal Bureau of Mines that was established in 1961 and Nepal Geological Survey that was established in 1967. These two organizations were combined in 1977 and renamed as Department of Mines and Geology (DMG). Mineral exploration activities were in peak during 1969 – 1984.
The Espada Formation represents a long period of geologic history – tens of millions of years – in which sediments were deposited in warm, quiet water in a basin that was gradually subsiding. The water was usually shallow, as indicated by the frequent sandstone beds (coarse sediment such as sand is deposited nearer shore unless carried far ...