MICROFOSSILS AND CHRONOSTRATIGRAPHY OF THE DEEP BEDS IN THE WELL BAOSHI 1# FROM XIHU SAG, THE EAST CHINA SEA
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Abstract:
This paper mainly reports the microfossils including coccoliths, foraminifers, dinoflagellates, ostracods and palynomorphs from the deep beds (interval 3 447? ? 806 m ) exposed in the well Baoshi 1# of Xihu Sag and discusses its chronostratigraphy. According to the geological distribution of these microfossils and a comparison with those fossils from formerly drilled wells in Xihu Sag, the authors hold that the intervel covering these deep beds of the well Baoshi 1# is a set of newly found strata and belongs to Paleocene.
