| 许家窑泥河湾组高分辨率磁性地层学研究 |
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| 引用本文： | 苏朴,REIDAR LOVLIE,樊行昭,赵增建.许家窑泥河湾组高分辨率磁性地层学研究[J].地球物理学报,2000,43(2):223-231. |
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| 作者姓名： | 苏朴 REIDAR LOVLIE 樊行昭 赵增建 |
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| 作者单位： | 1. 太原理上大学古地磁研究室,太原030024;
2. Instimte of Solid Earth Physics University of Bergen Bergen Norway |
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| 基金项目： | 国家自然科学基金，山西省自然科学基金，挪威研究理事会资助项目，49474248，，，，， |
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| 摘 要： | 对许家窑泥河湾组两个平行剖面的高分辨率古地磁研究结果发现，在剖面的中下 部存在厚度约 １０ｍ（未见底）的巨厚负向极性带．根据正负极性带的相对位置及组合关系并 结合剖面附近相关层位火山豆的Ｋ－Ａｒ绝对年龄值进行分析认为，该负向极性带应为松山反 向极性时带．此结果否认了作者关于在遗址剖面底部存在Ｂｌａｋｅ反向极性偏移的结论．由此 推断，分布在许家窑一带的泥河湾组年代应为早更新世晚期至中更新世早中期．
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| 关 键 词： | 泥河湾组 松山反向极性时 布容正向极性时 布莱克（Blake）反向极性偏移 |
| 文章编号： | 0001-5733(2000)02-0223-09 |
| 收稿时间： | 1999-01-11 |
A HIGH-RESOLUTION MAGNETOSTRATIGRAPHY STUDY ON THE NIHEWAN GROUP AT XUJIAYAO |
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| SU PU,REIDAR LOVLIE,FAN XING-ZHAO,ZHAO ZEN-JIAN.A HIGH-RESOLUTION MAGNETOSTRATIGRAPHY STUDY ON THE NIHEWAN GROUP AT XUJIAYAO[J].Chinese Journal of Geophysics,2000,43(2):223-231. |
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| Authors: | SU PU REIDAR LOVLIE FAN XING-ZHAO ZHAO ZEN-JIAN |
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| Institution: | 1. Paleomagnetism research Group, Taiyuan University of Technology, Taiyuan 030024, China ;
2. Institute of Solid Earth Physics, University of Bergen, Bergen,Norway |
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| Abstract: | A high-resolution paleomagnetism study was made at two parallel sections of Nihewan group at Xujiayao Paleolithic site. More than 10m reversed polarities were found at the middle-low parts of both sections. According to the K-Arages of volcanic beaus near by the sections, it is derived that the reversed polarities should be the Matuyama reversed polarity zone. The Blake reversed excursion reported previously was denied. |
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| Keywords: | Nihewan group Matuyama reversed polarity chron (zone) Brunhes normal polarity chron (zone) Blake reversed excursion |
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