Some topics in English newsmagazines in 2012, with special reference to mineral resources, regional geology, and new geological map

A detailed geological investigation was carried out to assess the distribution of minerals and their geological control in Bandipur-Gondrang area of Tanahu district, a part of Lesser Himalaya in central Nepal. The area is found rich in both metallic and non-metallic mineral deposits. The main metallic minerals found are iron in Phalamdada and Labdi Khola, copper in Bhut Khola and poly-metallic deposits including suspected gold in Bhangeri Khola and Jaubari Khola-Bar Khola sections. A large deposit of inorganic carbon is found around the Gondrang-Watak area. Similarly, a good quality of green marble (metabasite) is found as decorative stone in Bagar Khola area and good quality of roofing stone in Bandipur area. In addition to these economic deposits other several sub economic to non-economic mineral are also located in the geological map of the area. Categorization of these mineral deposits is based on the probable reserve and laboratory analysis of related samples. Geological control of mineral deposits is considered to be the stratigraphic, structural, metamorphic and hydrothermal. Iron mineralization of the area is found stratigraphical control, copper deposits by magmatism of basic rocks (amphibolites), and poly-metallic deposits are related to the hydrothermal processes.

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Regional geology and 1:500 000 mapping in North-East Greenland

Rapport Grønlands Geologiske Undersøgelse ◽

10.34194/rapggu.v148.8110 ◽

1990 ◽

Vol 148 ◽

pp. 16-20

Author(s):

N Henriksen

Keyword(s):

Geological Mapping ◽

Fold Belt ◽

East Greenland ◽

Regional Geology ◽

Field Mapping ◽

North East ◽

General Geology ◽

Geological Map

A three-year field mapping programme was initiated in 1988 aiming at regional geological studies and geological mapping in North-East Greenland between latitudes 75° and 78°N. This region encompasses relatively little known parts of the Caledonian fold belt and the overlying post-Caledonian sequences, which lie north of the better known regions of central East Greenland (Henriksen, 1989). Major aims of the programme include compilation a 1:500 000 geological map, and an understanding of the general geology of the region.

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Regression models for estimating mineral resources from geological map data

Journal of the International Association for Mathematical Geology ◽

10.1007/bf01028881 ◽

1980 ◽

Vol 12 (5) ◽

pp. 473-488 ◽

Cited By ~ 85

Author(s):

C. F. Chung ◽

F. P. Agterberg

Keyword(s):

Regression Models ◽

Mineral Resources ◽

Geological Map ◽

Map Data

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On the history of the first Russian geological map

Earth Sciences History ◽

10.17704/1944-6187-34.2.333 ◽

2015 ◽

Vol 34 (2) ◽

pp. 333-347

Author(s):

Leonid R. Kolbantsev

Keyword(s):

Mineral Resources ◽

Russian Government ◽

Central State ◽

Rock Types ◽

Historical Archive ◽

History Of ◽

Geologic Map ◽

Geological Map ◽

Academy Of Sciences ◽

Mining Districts

The earliest Russian geologic map, the “Map of the Environs of the Nerchinsk Mining Establishment (1789–1794)”, was found in the Central State Historical Archive, Leningrad in 1925. At that time it was described by Presnyakov (1927). Shortly after that, the map was lost from view and was not available for study until recently. This paper investigates the provenance and history of the manuscript map in six sheets. It is likely that the Russian government commissioned the map in order to assess the mineral resources of the Nerchinsk district. The map was the result of six summer field seasons where the six base maps showing stream networks and topography were assembled using compasses and tapes. The rock types were superimposed on the base maps and depicted using different colors. The mapping effort was overseen by Egor Barboth de Marny, the director of the Nerchinsk mining establishment, and the fieldwork was undertaken by Dorofey Lebedev, Mikhail Ivanov and Alexey Cheredov. The innovative use of color may have been inspired by earlier maps of mining districts in Germany and suggested by Benedict Franz Johann Hermann, a member of the St. Petersburg Academy of Sciences.

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