Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1191/095968399670329816 |
Response of aeolian systems to Holocene climatic and hydrologic changes on the northern margin of the Sahara: a high-resolution record from the Chott Rharsa basin, Tunisia | |
Swezey, C; Lancaster, N; Kocurek, G; Deynoux, M; Blum, M; Price, D; Pion, JC | |
通讯作者 | Swezey, C |
来源期刊 | HOLOCENE
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ISSN | 0959-6836 |
出版年 | 1999 |
卷号 | 9期号:2页码:141-147 |
英文摘要 | Four millennial-scale latest Pleistocene to Holocene climatic cycles are recorded by aeolian-lacustrine strata along the southern margin of Chott Rharsa, a playa situated within an active tectonic basin along the northern margin of the Sahara Desert in Tunisia. Cycles are characterized by (1) a humid phase of dunefield stabilization and high lake levels, and (2) an arid phase of playa desiccation and deflation with dunefield construction. The cycles overall define a progressive drying trend and correlate well with a detailed chronology from Morocco and with the Sahara region in general for the latest Pleistocene and early Holocene. Climatic events appear more regional in nature for the later Holocene. An isolated outcrop of aeolian deposits dated at >86 ka BP argues for records of older cycles in the Chott Rharsa Basin that were subsequently removed by long-term deflation in the area. |
英文关键词 | Aeolian deposits climatic variations dunes luminescence dating Sahara Tunisia Holocene |
类型 | Article |
语种 | 英语 |
国家 | USA ; France ; Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000079599000002 |
WOS关键词 | SOUTHERN TUNISIA ; LAST DEGLACIATION ; ATLANTIC-OCEAN ; GYPSUM CRUSTS ; ICE-CORE ; ABRUPT ; FLUCTUATIONS ; TRANSITION ; TROPICS ; POLLEN |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | French National Research Institute for Sustainable Development ; Desert Research Institute |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/137427 |
作者单位 | (1)Univ Texas, Dept Geol Sci, Austin, TX 78712 USA;(2)Univ Nevada, Desert Res Inst, Reno, NV 89506 USA;(3)Univ Louis Pasteur Strasbourg 1, CNRS, Ctr Geochim Surface, F-67084 Strasbourg, France;(4)Univ Nebraska, Dept Geosci, Lincoln, NE 68588 USA;(5)Univ Wollongong, Thermoluminescence Dating Lab, Sch Geosci, Wollongong, NSW 2522, Australia;(6)Univ Louis Pasteur Strasbourg 1, ORSTOM, GSTS, F-67084 Strasbourg, France |
推荐引用方式 GB/T 7714 | Swezey, C,Lancaster, N,Kocurek, G,et al. Response of aeolian systems to Holocene climatic and hydrologic changes on the northern margin of the Sahara: a high-resolution record from the Chott Rharsa basin, Tunisia[J]. French National Research Institute for Sustainable Development, Desert Research Institute,1999,9(2):141-147. |
APA | Swezey, C.,Lancaster, N.,Kocurek, G.,Deynoux, M.,Blum, M.,...&Pion, JC.(1999).Response of aeolian systems to Holocene climatic and hydrologic changes on the northern margin of the Sahara: a high-resolution record from the Chott Rharsa basin, Tunisia.HOLOCENE,9(2),141-147. |
MLA | Swezey, C,et al."Response of aeolian systems to Holocene climatic and hydrologic changes on the northern margin of the Sahara: a high-resolution record from the Chott Rharsa basin, Tunisia".HOLOCENE 9.2(1999):141-147. |
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