Research PaperPetrologic characteristics and genesis of dolostone from the Campanian of the SK-I Well Core in the Songliao Basin, China
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Highlights
► Dolomite shows rhombs, with replacement structure of cloudy nucleus and light rims. ► δ13CPDB values suggest fermentation of organic matter by microbes. ► Salinity of Z value and occurrence of foraminifera proved marine water incursions. Pyrite framboids in the dolomite crystals suggest sulfate reducing bacteria (SRB).
Keywords
Dolostone
Genesis
Cretaceous Nenjiang Formation
SK-I well core
The Songliao Basin
China
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