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Occurrence patterns of the Pliocene to Pleistocene planktonic foraminiferal marker beds with relation to the timing of hydrocarbon trap formation, offshore and coastal areas of Akita Prefecture, Japan
foraminifera marker bed Pliocene Pleistocene Akita Prefecture deep sea erosion
2009/5/7
Planktonic foraminiferal marker beds such as Globorotalia ikebei bed, No.3 and No.2 Globorotalia inflata beds and Neogloboquadrina asanoi bed, have been useful for correlation and age determination ...