Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1144/jgs2020-147 |
Were springline carbonates in the Kurkur-Dungul area (southern Egypt) deposited during glacial periods? | |
Kele, Sandor; Sallam, Emad S.; Capezzuoli, Enrico; Rogerson, Mike; Wanas, Hamdalla; Shen, Chuan-Chou; Lone, Mahjoor Ahmad; Yu, Tsai-Luen; Schauer, Andrew; Huntington, Katharine W. | |
通讯作者 | Kele, S (corresponding author), Inst Geol & Geochem Res, Res Ctr Astron & Earth Sci, H-1112 Budapest, Hungary. |
来源期刊 | JOURNAL OF THE GEOLOGICAL SOCIETY
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ISSN | 0016-7649 |
EISSN | 2041-479X |
出版年 | 2021 |
卷号 | 178期号:3 |
英文摘要 | The tufa deposits in the Kurkur-Dungul area, southern Egypt, date from marine isotope stage (MIS) 11 to MIS 1. Springs across the region were active during glacial periods (with sea-level below -50 m), reflecting changed atmospheric circulation over the Indian Ocean, as well as peak interglacial periods. During times of low sea-level, reduced Indonesian throughflow promoted formation of an Indian Ocean Warm Pool, and anomalous rainfall on its western margin. We suggest that Egypt lies at the intersection of westerly ('maghrebian') and easterly ('mashriqian') rainfall provinces, which show different timing with relation to orbital forcing and different source water regions. Tufa-growth periods are therefore not mechanistically linked to 'humid periods' or 'sapropel events' identified elsewhere. Stable isotope and T(Delta(47)) data are also inconsistent with these spring systems being part of a larger system spanning northern Africa, and lack a clear interaction between northern hemisphere heating and mid-latitude rainfall. We also follow previous researchers in concluding that formation of springline deposit formation was probably delayed compared with rainfall, owing to aquifer flow distances. This delay is unlikely to be sufficient to explain why rainfall is out of phase with movements of the monsoon belts, but may complicate interpretation of these records. |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000616381700001 |
WOS关键词 | NUBIAN SANDSTONE AQUIFER ; STABLE-ISOTOPE ANALYSIS ; CLUMPED-ISOTOPE ; WESTERN DESERT ; CALCAREOUS TUFA ; EASTERN SAHARA ; HIGH-PRECISION ; KHARGA OASIS ; PALEOCLIMATIC IMPLICATIONS ; MEDITERRANEAN REGION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/351016 |
作者单位 | [Kele, Sandor] Inst Geol & Geochem Res, Res Ctr Astron & Earth Sci, H-1112 Budapest, Hungary; [Sallam, Emad S.] Benha Univ, Geol Dept, Fac Sci, Farid Nada St 15, Banha 13518, Egypt; [Capezzuoli, Enrico] Univ Florence, Dept Earth Sci, Via La Pira 4, Florence, Italy; [Rogerson, Mike] Northumbria Univ, Dept Geog & Environm Sci, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England; [Wanas, Hamdalla] King Abdulaziz Univ, Dept Petr Geol & Sedimentol, Jeddah, Saudi Arabia; [Wanas, Hamdalla] Menoufiya Univ, Geol Dept, Fac Sci, Shibin Al Kawm, Egypt; [Shen, Chuan-Chou; Lone, Mahjoor Ahmad; Yu, Tsai-Luen] Natl Taiwan Univ, Dept Geosci, High Precis Mass Spectrometry & Environm Change L, Taipei 10617, Taiwan; [Shen, Chuan-Chou; Lone, Mahjoor Ahmad; Yu, Tsai-Luen] Natl Taiwan Univ, Res Ctr Future Earth, Taipei 10617, Taiwan; [Shen, Chuan-Chou] Natl Taiwan Univ, Global Change Res Ctr, Taipei 10617, Taiwan; [Schauer, Andrew; Huntington, Katharine W.] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Kele, Sandor,Sallam, Emad S.,Capezzuoli, Enrico,et al. Were springline carbonates in the Kurkur-Dungul area (southern Egypt) deposited during glacial periods?[J],2021,178(3). |
APA | Kele, Sandor.,Sallam, Emad S..,Capezzuoli, Enrico.,Rogerson, Mike.,Wanas, Hamdalla.,...&Huntington, Katharine W..(2021).Were springline carbonates in the Kurkur-Dungul area (southern Egypt) deposited during glacial periods?.JOURNAL OF THE GEOLOGICAL SOCIETY,178(3). |
MLA | Kele, Sandor,et al."Were springline carbonates in the Kurkur-Dungul area (southern Egypt) deposited during glacial periods?".JOURNAL OF THE GEOLOGICAL SOCIETY 178.3(2021). |
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