ГЛУБИННОЕ СТРОЕНИЕ СУРХАНДАРЬИНСКОЙ ДЕПРЕССИИ И ЕГО ОТРАЖЕНИЕ В РЕЛЬЕФЕ

Аннотация

Objects of research: an earth's crust of the Surkhandarya depression. Aim of the inquiry : studying of a deep geological structure of the Surkhandarya depression, mapping the deep borders of the earth's crust, surface of the basement and its display in a modem relief. Method of inquiry: the complex analysis of the geology-geophysical data, first of all seismic survey materials of method of exchange waves of the earthquakes, results of gravitation prospecting, deep drilling, with attraction information on allied industries. The results achieved and their novelty: by data of method of exchange waves of the earthquakes were allocated the body area identified with mantle plum which breaks through Moho surface, in the southern and western part of researched territory in the bottom part of the earth's crust - Moho intermediate zone, which presence proved by results of geodensitive modeling. Were mapped the Surkhandarya fault. It is established that the researched area has entered in active orogenic phase of development in the end of Pliocene and in the beginning of Quaternary period. Practical value: were constructed the schematic map of the surface of buried relief of the basement by the data of method of exchange waves of the earthquakes. On the basis of the analysis of the bedding features of the Paleozoic basement disjunctive dislocations arc revealed and were made the estimation of a degree of dislocation of Paleozoic deposits that has allowed revealing sites for statement in the future for purposeful exploration. Degree of embed and economic affectivity: given recommendations on carrying out of additional field researches, improvement of profile VI-VI with the purpose of specification of a deep structure of east zone of the Surkhandarya depression and also the recommendation on revealing local oil-gas-bcaring structures which have been accepted in Open Society "Uzbekgeofizika". Field of application: oil-and-gas branch of Republic Uzbekistan, the exploration enterprises which arc carrying out search and prospecting of oil and gas accumulations.