Abstract
The study centered on the Guyang Formation source rock in the Linhe depression of the Hetao Basin, which is an area of faulted lacustrine basins with limited exploration and development. This research aimed to tackle fundamental scientific matters related to the sedimentary environment. By determination the total organic carbon content, using GC-MS, and analyzing major elements and trace elements, the following conclusions were reached. (1) The lithology of the Guyang Formation in the study area is predominantly mudstone, and the core color in the south is darker than that in the north, signifying that the sedimentary environment had changed at that time. (2) These phenomena are also corroborated by element features. In the south, it is mainly an arid and saltwater environment, while in the north, the water salinity is relatively low. (3) As there are fewer organisms in an arid and hot climate, the consumption of organic matter is also less. The high paleoproductivity supplemented the organic matter. Thus, these two factors are the main controlling ones for organic matter enrichment in the study area. This research has conducted a new study on organic matter enrichment in the Hetao Basin.
Published Version
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