Search results
Results from the Health.Zone Content Network
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 ...
In 1961, the name was changed to Division of Mines and Geology (DMG), with a greater emphasis on environmental geology in urban areas. Following the 1971 San Fernando earthquake, DMG was authorized to delineate regulatory zones along faults and install instruments to record earthquake strong motion. In 1976, it was authorized to help assure ...
The department was established in 1892 as the Royal Department of Mines and Geology. It was originally responsible for mining management, though its scope later extended to cover petroleum and ground water management as well. It was placed under various ministries throughout the 20th century, coming under the Ministry of Industry from 1972 to ...
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.
Rajasthan State Mines & Minerals Limited[ 1 ] (RSMML) is a public sector enterprise of the Government of Rajasthan and primarily engaged in Mining and Marketing of High Grade Rock phosphate, Lignite, Limestone & Gypsum (Non-Metallic minerals) through its mines located at various locations in Rajasthan. RSMML is a multiple location organization ...
Diagram as published by McKelvey in 1973 [1] Diagram as published by McKelvey in 1976 [2]. A McKelvey diagram or McKelvey box is a visual representation used to describe a natural resource such as a mineral or fossil fuel, based on the geologic certainty of its presence and its economic potential for recovery.
1992 – The Colorado Geological Survey is placed under the newly formed Division of Minerals and Geology, a regulatory agency. 2005 – The legislature re-establishes the Colorado Geological Survey as a separate Division in the Department of Natural Resources. 2013 – CGS is transferred to the Colorado School of Mines.
The Jalama Formation is a sedimentary rock formation widespread in southern Santa Barbara County and northern Ventura County, southern California. Of the Late Cretaceous epoch, the unit consists predominantly of clay shale with some beds of sandstone . A particularly erosion-resistant sandstone within the unit forms the scenic Nojoqui Falls, in ...