对准噶尔盆地古老基底问题的一些浅见

Superficial views on the ancient basement problem in Zhunger Basin

1. 西北石油局规划设计研究院,乌鲁木齐 830011;2. 新疆地矿局物化探大队,昌吉 831100

Institute of Planning and Design, Northwest Petroleum Bureau, Urumqi 830011

准噶尔盆地基底结构、岩相及时代的探讨有利于盆地油气资源的评价。由于盆地内存在巨厚的中、新生界, 使之在地质、钻探和物探方面都无法获得有关古老基底存在的直接信息。我们依据用新的技术思路处理后的基础物探资料, 研究探讨了准噶尔盆地是否存在古老基底的问题。

The probe into the basement of the Zhunger Basin, including its structure, facies andage, is beneficial to the evaluation of oil and gas rores in this basn. For the very thick Mesozoic andCenozoic strata within the basin, direct information on the existence of ancient basament can not be acquired from goologic, geophysical and drilling data. On the basis of the fundamental geophysica dataprocessed using a new technical thinking, the authors discuss and study whether or not there exists ancient basement in Zhunger Basin.