Dilemma of dating on lacustrine deposits in an hyperarid inland basin of NW China
文献类型：期刊论文
| 作者 | Zhang, H. C.; Ming, Q. Z.; Lei, G. L.; Zhang, W. X.; Fan, H. F.; Chang, F. Q.; Wuennemann, B.; Hartmann, K. |
| 刊名 | RADIOCARBON
 |
| 出版日期 | 2006 |
| 卷号 | 48期号:2页码:219-226 |
| ISSN号 | 0033-8222 |
| 英文摘要 | Conventional and accelerator mass spectrometry (AMS) radiocarbon, TL, OSL, and IRSL dating results on samples from the cores D100 and 170 from Ejina Basin, one of the most important inland basins in arid-hyperarid NW China, show that it is difficult to determine the ages of sediments at different depths. AMS ages of core D 100 samples demonstrate that the sediments at depths from 10 to 90 m were formed between 14 to 30 kyr BR The inverted ages from both the D100 and 170 cores imply that there was a strong reworking of the sediments during and after deposition processes. The inverted ages also indicate drastic fluctuations of groundwater bearing soluble organic matters, which might be related to neotectonic activities and climate changes during the period. Consequently, it is impossible to establish an accurate and reliable chronology for the cores based only on these dates. All AMS ages, if they are reliable and acceptable, indicate a high deposition rate (5 similar to 8 mm/yr), and since all TL, OSL, and IRSL ages are much older than those given by AMS, it makes these methods questionable for determining the ages of lacustrine-fluvial-alluvial deposits. |
| 公开日期 | 2012-03-08 |
| 源URL | [http://159.226.73.51/handle/332005/3039]  |
| 专题 | 南京地理与湖泊研究所_湖泊室 |
| 推荐引用方式 GB/T 7714 | Zhang, H. C.,Ming, Q. Z.,Lei, G. L.,et al. Dilemma of dating on lacustrine deposits in an hyperarid inland basin of NW China[J]. RADIOCARBON,2006,48(2):219-226. |
| APA | Zhang, H. C..,Ming, Q. Z..,Lei, G. L..,Zhang, W. X..,Fan, H. F..,...&Hartmann, K..(2006).Dilemma of dating on lacustrine deposits in an hyperarid inland basin of NW China.RADIOCARBON,48(2),219-226. |
| MLA | Zhang, H. C.,et al."Dilemma of dating on lacustrine deposits in an hyperarid inland basin of NW China".RADIOCARBON 48.2(2006):219-226. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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