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Radiometric dating of hillslope calcrete in the Negev Desert, Israel | |
Vogel, J. C.; Geyh, M. A. | |
通讯作者 | Vogel, J. C. |
来源期刊 | SOUTH AFRICAN JOURNAL OF SCIENCE
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ISSN | 0038-2353 |
出版年 | 2008 |
卷号 | 104期号:11-12页码:493-495 |
英文摘要 | The radiometric dating of calcrete is often problematical because impurities and open system conditions affect the apparent ages obtained. By applying both radiocarbon and uranium-series dating to calcrete In colluvium, It is shown that such conditions can be identified. In correlation with the stratigraphy, it is found that partial recrystallization severely decreases the radiocarbon ages of the upslope and shallower samples further down, whereas incorporation of limestone fragments from bedrock significantly Increases the apparent ages of some of the uranium-series samples. It Is concluded that the hillslope calcrete at the study site near Sede Beker in the Negev Desert, Israel, mainly developed shortly after 40 kyr ago, at a time when the Jordan Valley was being inundated to form the fossil Lake Llsan. Since their formation would have required higher rainfall than today, the results provide further evidence that the whole region was experiencing an increase in precipitation. |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000264090400021 |
WOS关键词 | CARBONATES ; C-14 |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/159238 |
推荐引用方式 GB/T 7714 | Vogel, J. C.,Geyh, M. A.. Radiometric dating of hillslope calcrete in the Negev Desert, Israel[J],2008,104(11-12):493-495. |
APA | Vogel, J. C.,&Geyh, M. A..(2008).Radiometric dating of hillslope calcrete in the Negev Desert, Israel.SOUTH AFRICAN JOURNAL OF SCIENCE,104(11-12),493-495. |
MLA | Vogel, J. C.,et al."Radiometric dating of hillslope calcrete in the Negev Desert, Israel".SOUTH AFRICAN JOURNAL OF SCIENCE 104.11-12(2008):493-495. |
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