Lakes During the Evolution of Mongolia

• Autores: Chris Sladen, J.J. Traynor
• Localización: Lake basins through space and time / coord. por Elizabeth H. Gierlowski-Kordesch, K. Kelts, 2000, ISBN 0891810528, págs. 35-57
• Idioma: inglés
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• Resumen

  • The Mongolian People's Republic in central Asia(frequently called Mongolia, but often referred to in the past as Outer Mongolia in English language literature)encompasses some 2 million km2 of steppe, desert, and mountains. Knowledge and understanding of Mongolian geology is limited, and in particular very little is known outside of Mongolia and Russia. The purpose of this paper is to highlight the development of lake basins, lakes, and lacustrine sequences during the geologic evolution of Mongolia and thereby stimulate further interest and research. Many characteristic features and apparent key controls on lake basin and lacustrine sequence development are described. Lake sediment scan be identified in all geologic periods from the Carboniferous to Quaternary. Collectively, they include examples of all the principal types of tectonically formed lake basins and lacustrine depositional environments.

    The geology of Mongolia is not known in any detail in western literature, partly due to the country's remoteness and inaccessibility. Pioneering work reported by Berkey and Morris (1927) remains the single most important source of documentation in the English language. Following the changes in Mongolia and the former Soviet Union during the late 1980s,geoscientists can now access the remotest areas of the country. Mongolian and Soviet surface geology maps, made from the 1950s onward, are a key source of data. Most of the stratigraphic units and nomenclature in this paper are based on these maps. The maps, most of which are not officially published, do notably contain some inconsistencies in the use of terms such as "early" vs. "lower"