中亚陆间区南带上古生界构造和油气远景（代序）

安加拉-阿尔丹和华北-塔里木两大克拉通之间地壳相对活动性的地区，地质界多称为中亚陆间区，其南带大部分在中国境内。近年来，中国开始把其上古生界作为油气新区、新领域。多数人认为，其在晚古生代已形成过渡型地壳区，其中有许多地块已逐步拼合，在其上发育裂谷型沉积地质体，未受到区域变质，若干实体变形微弱并被上覆层掩盖而得到保存。源于上古生界的油气既可赋存在其内，也可运聚于中生界或基岩内，在其西段已发现了大中型油气田群。但其整体地质研究程度偏低，仍有许多重大区域地质、油气地质问题存在歧见。针对其近年来的进展、存在的问题和油气远景评价作了概括性的评论。

A discussion on the Upper Paleozoic tectonics and petroleum prospect of southern central Asia intercontinental area

The southern central Asia intercontinental area, which is mainly located in China, lies in a relatively active crust area between the Angara-Aldan and North China-Tarim craton. In recent years, the Upper Paleozoic strata have been regarded as a new field of oil and gas exploration. Most researchers regard this area as a transitional crust which is characterized by weakly deformed strata and good preservation due to upper cap rocks. The oil and gas which originated from Upper Paleozoic could be accumulated in situ and also immigrate into Mesozoic batholith. Several large and medium gas fields have been found in the western part of this area. Additionally, there still exist some controversies on the regional geology and petroleum area. This paper provides a generalized comment on the progress, existing problems and hydrocarbon prospective area.