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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 discussion of basement structure, lithofacies and age in Junggar Basin is favorable to the evaluation of oil and gas resources in the basin. Due to the immense Mesozoic and Cenozoic communities in the basin, there is no direct geological, drilling, and geophysical information on the existence of ancient basalts. Based on the basic geophysical data processed with the new technical thinking, we studied the issue of whether there is an ancient basement in the Junggar Basin.