In the Mesozoic petroleum system in Yanqi basin, the Badaowan Formation is the principle source rock with coal-measure mudstone as the main type of source rock.
焉耆盆地中生界含油气系统中，八道湾组是最主要的烃源岩层，烃源岩类型主要为煤系泥岩。
The paper reviewed the research history and the current status of hydrocarbon source rock evaluation based on organic abundance, type and maturity.
本文综述了从有机质丰度、有机质类型和有机质成熟度等方面评价烃源岩的历史和研究现状。
The application value of traditional method to explore the oil and gas source using carbon isotope was bounded by the type and maturity of source rock.
利用气体碳同位素探索油气来源的传统方法由于受源岩类型、源岩成熟度等因素的影响，其实际应用受到很大的限制。
The material source of the Carboniferous karst type bauxite in North China mainly came from the underlying Late cambrian-middle Ordovician carbonate rock.
华北石炭纪岩溶型铝土矿的主要物质来源为下伏的晚寒武世—中奥陶世碳酸盐岩。
This type of oil is derived from the shallowly buried, immature or lowly mature source rock of Duhongmu Formation I.
这类原油属于原生低成熟特稠油，油源为都一段未熟、低成熟烃源岩。
They are all looking for natural gas trapped in shale (a type of flaky sedimentary rock) -are source that has transformed the market for gas in America and may have a big impact on Europe, too.
他们都在寻找储存在叶岩(一种易于剥落的沉积性岩石)上的天然气。这种天然气已经改写了美国的天然气市场格局，也将在欧洲市场上有一番作为。
They are all looking for natural gas trapped in shale (a type of flaky sedimentary rock) -are source that has transformed the market for gas in America and may have a big impact on Europe, too.
他们都在寻找储存在叶岩(一种易于剥落的沉积性岩石)上的天然气。这种天然气已经改写了美国的天然气市场格局，也将在欧洲市场上有一番作为。
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