还在不久之前，一般都认为古老的大陆结晶地核不含石油。这个观点支持了石油的生物成因说，因为为了生成石油，必须要有生物质，而后者在３５～２５亿年前结晶地核形成时还不存在于地球上。但后来在“晶体复合物”生物潜居区发现了不大的碳氢化合物堆积，这一发现更加证实了最 Not long ago, it was generally accepted that the ancient continental crystalline cores were oil-free. This view supports the biological genesis of petroleum as it is necessary to have biomass for the generation of oil, which did not exist on Earth when the crystalline nuclei formed between 3.5 and 2.5 billion years ago. However, the discovery of modest hydrocarbon accumulation later in the “crystal complex” biotic suburb