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1篇 您的检索式:作者名="Senchang Gu"
    题名 作者 年代 出处 被引量
1The genesis and environmental significance of red and black sedimentary interlay ers in coral reef of well Nanyong 2显示文摘The results of paleogeomagnetics and geo-chemistry of the coral reef in well Nanyong 2 of Nansha Is-lands showed that the bottom of the black sedimentary in-terlayer corresponds to the conversion boundary line be-tween Brunhes Postive Polarity and Matuyama Reversed Polarity (B/M) and the cold/warm (19/20) climatic conver-sion bounds on ()18O curve, 0.78 Ma ago; and the red sedi-mentary interlayer corresponds to the Reunion I polarity excursion (reversion) of the geomagnetic field, 2.01-2.04 Ma ago. Comparing with the normal light-coloured coral reef rock, the magnetic susceptibility (x), residual magnetization intensity (Mr) and the content of MnO and Fe2O3 of the black sedimentary layer appeared obviously positive ab-normity. The magnetic susceptibility (x), residual magnetiza-tion intensity (Mr) and the content of Fe2O3 of the red sedi-mentary layer also appeared positive abnormity. Combining with the analyzing results of paleontology, we hold that this pair of special and typical sedimentaryWen Yan Xianzan Tan Zhong Chen Muhong Chen Senchang Gu 2002Chinese Science Bulletin2002,47,4:2
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