新疆阿拉套山中新生代构造演化及对煤田的控制

本文应用地洼学说的观点,明确提出本区经历过地槽、地台、地洼三个大地构造发展阶段;详尽阐述了地台、地洼发展阶段的构造运动、地貎和沉积环境演化特征;指出本区存在地台型煤田;并探讨了地洼构造对煤田的改造过程。在此基础上提出了明确的找煤远景区。经实践验证的成果表明:应用地洼学说研究本区的中新生代构造演化是有理论和实际意义的。

TECTONIC EVOLUTION OF THE ALATO MOUNTAIN IN MESO-CENOZOIC TIME AND ITS CONTROL ON COAL FIELDS

According to diwa theory, three tectonic stages, geosynclinal,platform and diwa, have been recognized in the Alato Mountain. The paper elucidates in detail the tectonic and geomorphological features and sedimentary environment of the area at the platform and diwa stages. It points out that platform-type coalfields exist in the area and discusess the reworking of the coal fields by diwa tectonism. On this basis the paper proposes prospects for searching for coal. The results of test by practice indicate that applying diwa theory to the study of the Meso-Cenozoic tectonic evolution of the area has theoretical and parctical significance.