陆相地层特殊的钒卟啉优势和高含量Di-DPEP的发现

本文使用TLC,UV-Vis,HPLC,MS等方法,对中国陆相地层中的卟啉化合物的类型、结构、指纹分布等进行研究。结果表明:鄂尔多斯湖相地层中的钒卟啉优势是由于样品的高成熟度造成,而贵州藻烛煤中异常高的Di-DPEP分子可能与其丰富的母质来源、成岩作用早期弱氧化条件及随后的还原环境有关。     

DISCOVERY OF SPECIAL PREDOMINANCE OF VANADYL PORPHYRIN AND HIGH ABUNDANCE OF Di-DPEP IN NONMARINE STRATA

By means of TLC, UV-Vis, HPLC and MS analyses, the types, structure and fingerprint distribution of porphyrin compounds in the nonmarine strata of China have been studied herein. It is revealed that the predominance of vanadyl porphyrin in lacustrine sediments of the Ordos Basin resulted from the high maturity, while the abnormal high content of Di-DPEP in the boghead-cannel coal from Guizhou Province was probably related to its abundant source input, the weakly oxidizing condition during the early diagenesis and the consequent reducing environment.     

PETROPORPHYRINS IN OILS AND SEDIMENTS FROM ZHANHUA DEPRESSION

A study on petroporphyrins from oils and shales in the Zhanhua depression was carried out by using TLC, HPLC and MS. The carbon number distribution of porphyrins, the carbon number of main porphyrin and DPEP/ETIO values from this study demonstrate that the maturity of YI18 is the least one among oils and similars to that of shales from the first member of the Shahejie Formation. By dividing oils and shales into four groups, the HPLC confirmed the relationship of oil YI18 to its source, shales from the first member of the Shahejie Formation. Oils from the Gudao and Chengzikou uplifts mainly came from the third member of the Shahejie Formation. Oils GU15, CHENG14, YI11 and YI64 may have resulted from the influence of sedimentary environment.     

沾化凹陷原油和沉积岩中的卟啉

本文应用薄层色谱,高效液相色谱和质谱,研究了沾化凹陷原油和沉积岩中卟啉,卟啉化合物分子分布范围、最大丰度卟啉分子的碳数、脱氧植红初卟啉与初卟啉比值等,结果表明原油中义18成熟度最低,沉积岩中下第三系沙河街一段有机质成熟度与之相当.反相高效液相色谱将原油与生油岩分为四组,进一步证实沙河街一段沉积岩与原油义18有亲缘关系,浅层孤岛原油和埕子口原油可能主要来自沙河街三段.孤岛、埕子口、义11和义64等原油含钒卟啉可能与原始物质沉积环境有关.