| 中国黄土剖面蓝田正极性亚带之确认 |
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| 引用本文： | 岳乐平,王焰.中国黄土剖面蓝田正极性亚带之确认[J].西北大学学报,1990,20(1):88-88,98,111,11. |
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| 作者姓名： | 岳乐平 王焰 |
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| 作者单位： | 西北大学地质系，西北大学地质系，西北大学地质系 |
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| 摘 要： | 中国黄土广泛分布于中国北方,是典型的更新世沉积。巨厚的黄土地层较完整地记录了200多万年来地球磁场变化信息,使我们得以通过黄土进行古地磁研究。作者先后对20多个黄土剖面进行了古地磁测量。结果表明:黄土剖面清楚地反映出布容正极性带与松山负极性带的界限(B/M)位于第八层黄土(L_8)中部。松山负极性带与高斯正极性带的界限(M/Ga)恰是更新世黄土与第三纪红粘土的界限。在松山负极性带中清楚地反映出哈拉米洛正极性亚带(J),奥尔都维正极性亚带(O)与留尼汪正极性亚带(R).
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| 关 键 词： | 黄土 剖面 中国 正极性 古地磁 |
Confirmation of Normal Polarity Subzone in Chinese Loess Section |
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| Yue Leping,Wang Yan,Qu Hongjun.Confirmation of Normal Polarity Subzone in Chinese Loess Section[J].Journal of Northwest University(Natural Science Edition),1990,20(1):88-88,98,111,11. |
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| Authors: | Yue Leping Wang Yan Qu Hongjun |
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| Institution: | Department of Geology |
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| Abstract: | Chinese loess is the typical continental pleistocen sediments and distributes widely in the northern part of China. We Studied 20 loess section Palae omagnetically. The result of magnetostratigraphy shows that B/M boudary lies L_8.The Jaramillo Normal Polarity Subchron was corresponded between S_(10) and S_(13). The Olduvai Normal Polarity Subchron is all confirmed in loess sections of Luoehuan, Lantian and Shaanxian. And the Reunion Normal Polaryity Subchron is the first found in loess section of Duanjiapo, Lantian. The same normal samples have been found between B/M boudary and J subchron(L)_9. The layers of loess is entitle as Lantian Normal Polarity Subchon (noted Lan), being about 800, 000Yea B. P. |
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| Keywords: | Palaeomagnetic Loess Polarity |
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