本文選題：微生物 + 生物降解��； 參考：《天然氣地球科學(xué)》2016年11期

【摘要】：成巖階段微生物發(fā)育及其對(duì)有機(jī)質(zhì)的改造對(duì)于生物甲烷聚集、優(yōu)質(zhì)烴源巖形成具有重要意義。在綜合近年對(duì)沉積成巖過程相關(guān)的微生物作用研究的基礎(chǔ)上,以柴達(dá)木盆地三湖坳陷第四系為例,論述了成巖階段微生物在生物甲烷生成、有機(jī)質(zhì)富集保存、可溶有機(jī)質(zhì)生成等方面的作用。柴達(dá)木盆地三湖坳陷第四系生物標(biāo)志化合物降解參數(shù)與產(chǎn)甲烷菌特征標(biāo)志物的關(guān)系,指示原始沉積有機(jī)質(zhì)降解與甲烷菌發(fā)育,是第四系沉積物中生物氣聚集的關(guān)鍵因素;與細(xì)菌來源生物標(biāo)志化合物相對(duì)豐度的關(guān)系,反映成巖階段微生物發(fā)育改變了原始有機(jī)質(zhì)性質(zhì);與氯仿瀝青"A"轉(zhuǎn)化率以及飽和烴相對(duì)豐度的關(guān)系,表明微生物發(fā)育是第四系沉積物中可溶有機(jī)質(zhì)的重要來源。
[Abstract]:The microorganism development and its transformation to organic matter in diagenetic stage are of great significance for the accumulation of biomethane and the formation of high quality hydrocarbon source rocks. Based on the recent studies on the microbial processes related to sedimentary diagenesis, taking the Quaternary system of Sanhu Depression in Qaidam Basin as an example, the biogenic methane generation and organic matter enrichment in diagenetic stage are discussed. The role of soluble organic matter in the formation of organic matter. The relationship between the degradation parameters of Quaternary biomarkers and the characteristic markers of methanogenic bacteria in Sanhu Depression of Qaidam Basin indicates that the degradation of organic matter and the development of methanogens are the key factors of biogas accumulation in Quaternary sediments. The relationship with the relative abundance of bacterial biomarkers reflects that the development of microorganisms in diagenetic stage changes the properties of the original organic matter, the conversion rate of chloroform bitumen "A" and the relative abundance of saturated hydrocarbons. It is suggested that microbial development is an important source of soluble organic matter in Quaternary sediments.
【作者單位】： 甘肅省油氣資源研究重點(diǎn)實(shí)驗(yàn)室/中國科學(xué)院油氣資源研究重點(diǎn)實(shí)驗(yàn)室;中國科學(xué)院大學(xué);
【基金】：國家自然科學(xué)基金項(xiàng)目(編號(hào):41172132) 國家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃項(xiàng)目(編號(hào):2012CB214801) 甘肅省重點(diǎn)實(shí)驗(yàn)室專項(xiàng)(編號(hào):1309RTSA041)聯(lián)合資助
【分類號(hào)】：P618.13

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