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The Songliao Basin is one of the Largest Mesozoic to Cenozoic sedimentary basin in China. It's from Heilongjiang province and Jilin province to Liaoning province and Nei Mongol Autonomous Region with an area of over 260, 000 Km2. The Cretaceous sediments are more than 7,000 m in thickness, which are the main stage of the basin development. A well -developed section with well-preserved and abundant palynoflora is found in the basin, which is a nice region to study Cretaceous palynology in China. The study has been going deep with the exploration and development of the Daqing Oil Field. More than 10, 000 samples from 500 wells have been analyzed and identified in thirty years. A lot of palynological information has been obtained. Some researches on palyno-stratigraphy, palyno-organic geochemistry, palyno-paleoclimatlogy and palyno-morphology have also got much achievements.

 

 

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