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通过对准噶尔盆地部分油藏烃源岩的电子显微镜研究，在大量样品中检出Ｄ型菌解无定形体，其母质来源具有二元混合性，形成在弱还原─原环境中，生烃门限Ｒ值为０．４％，生烃期大约为０．４％－０．７％，是轻质油（或凝析油）和天然气形成的重要组分之一。在低演化阶段，由于细菌参加了对有机质的改造，使Ⅱ－Ⅲ类烃源岩中富集氢，生烃能力变好。文章还初步探讨了芳烃化合物含量与菌解无定形体Ｄ形成的关系，指出当沉积体系中的硫和硫化氢与铁结合，形成稳定的黄铁矿物后，才有可能在Ⅲ型有机质中形成高含量的Ｄ型菌解无定形体。
Through the electron microscope study of source rocks of some reservoirs in the Junggar Basin, D-type amylolytic amorphous bodies were detected in a large number of samples. The parent material sources have binary mixture and formed in the weak reduction-original environment. The hydrocarbon generation threshold The R value is 0.4% and the hydrocarbon generation period is about 0.4% -0.7%. It is one of the important components of light oil (or condensate) and natural gas. In the low stage of evolution, due to bacteria involved in the transformation of organic matter, the type II-III source rocks are enriched with hydrogen and the hydrocarbon generation ability becomes better. In addition, the relationship between the content of aromatic compounds and the formation of amylolytic amorphous D was also discussed preliminarily. It is pointed out that it is possible that the sulfur and hydrogen sulfide in the deposition system combine with iron to form stable pyrite, Form a high content of D-type amylolytic amorphous body.