The evolution of Central Asiatic geosynclines through sea-floor spreading |
| |
| Authors: | LP Zonenshain |
| |
| Institution: | Science Research Laboratory of Geology of Foreign Countries, Ministry of Geology, MoscowU.S.S.R. |
| |
| Abstract: | Late Precambrian-Early Paleozoic and Middle Paleozoic oceanic basins are reconstructed in the orogenic belt of Central Asia. These basins coincide with eugeosynclinal ophiolites which can be considered as remnants of a former oceanic floor. As these ophiolites are of decreasing age from the edges of the eugeosynclinal zones toward their centres, one can assume the creation of an ancient oceanic basin by a sea-floor spreading process. Restored oceanic basins can be considered as analogues of present marginal and inland seas. The distinct structural-magmatic zonal pattern came into existence during the generation of a given oceanic basin. This pattern appears to be governed by the ancient Benioff zone along which energy and light lithophile substance ascended as mantle diapir. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
