Quaternary sporopollen assemblages and paleoclimatic fluctuation in the Qaid am basin
kang an 1 zhu xiaomin 2 han dexin 3 wang yanbin 3 kang qiang 4(1.chian national offshore oil corporation; beijing100021; china ; 2.geoscience department ; university of petroleum; beijing102200; chin a; 3.resource development department; cumt; beijing100083; china; 4.c hina national oil and gas exploration and development corporation; beijing10 0011; china)
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