TRIASSIC LITHOFACIES-PALAEOGEOGRAPHIC OUTLINE AND PALAEOTECTONIC CONFIGURATION IN ASIA AND THE CENTRAL PART OF PACIFIC REGION

Triassic Lithofacies-Palaeogeographic Maps in Asia and the Central Part of Pacific Region"has been compiled and studied, and several points are clear. 1.Unified division and comparision could be made between stages of Triassic strata within the region; 2.Indo-China epoch was a turning stage for tectonic evolution. The major expressions were the final closing of the north branch of palaeo-Tethys, northward peace-together of Yangtze and Qiantang continental blocks, further accretion of the south branch, with the palaeog-eographic relief of sea in-south and land in-north ended and east-west differential configuration started; 3. Six tectonic areas were divided within the region, namely, southern part of north Asia continent, southern continental margin of north Asia, intercontinent between south and north Asia continents, northern continental margin of south Asia, northern part of south Asia continent and circum Pacific continental margin in northern and eastern parts of south Asia continent; 4.Summary of the lithofacies-palaeogeographic outline and characteristics of early, middle and late Triassic; 5. Summaries of the major Triassic sediments and the occurrence conditions of stratigraphically controlled mineral resources.