globalchange  > 气候减缓与适应
DOI: 10.1127/zfg_suppl/2019/0553
WOS记录号: WOS:000476620100004
论文题名:
Stable isotope signatures of radiocarbon dated pedogenic carbonate from Tell Chuera (NE Syria) reveal fluctuating paleoenvironmental patterns in the Pleistocene Levant
作者: Ernst, Mathias1; Thiemeyer, Heinrich1; Luedecke, Tina2
通讯作者: Ernst, Mathias
刊名: ZEITSCHRIFT FUR GEOMORPHOLOGIE
ISSN: 0372-8854
出版年: 2019
卷: 62, 页码:59-84
语种: 英语
英文关键词: stable isotopes ; pedogenic carbonate ; carbonate pendants ; paleoenvironment ; Syria ; radiocarbon dating ; the Levant
WOS关键词: EASTERN MEDITERRANEAN REGION ; HOLOCENE CLIMATIC-CHANGE ; SOREQ CAVE ; PALEOSOL CARBONATES ; LAKE VAN ; ALLUVIAL DEPOSITS ; DELTA-C-13 VALUES ; OXYGEN ISOTOPES ; C-4 GRASSES ; RECORD
WOS学科分类: Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向: Physical Geography ; Geology
英文摘要:

Stable isotope geochemistry of pedogenic carbonate is a powerful tool to obtain information about paleoenvironmental patterns. Here, we study up to 18 cm long pedogenic carbonate pendants which occur in highly calcaric soils near the Early Bronze Age site of Tell Chuera in north-eastern Syria. Two of these pendants were selected for stable carbon (delta C-13) and oxygen (delta O-18) isotope analysis. The data (-9.0 to 2.4 parts per thousand for delta C-13 and 23.9 to 27.0 parts per thousand for delta O-18 values) suggest that the vegetation present in the area during carbonate precipitation changed considerably and generally consisted of a mix of C-3 and C-4 plants with temporary dominances of the latter. Three radiocarbon ages between 43 and 35 ka BP indicate that the pendants formed almost entirely during the Upper Pleistocene with high growth rates of 4.1 to 9.7mm /1000 a. Modern soils in the surrounding of Tell Chuera show carbonate precipitation in soil depths of about 40 cm, suggesting that the studied carbonate pendants were formed in similar depths. Today, the sampled pendants are found ca. 10 to 30 cm below the soil surface, hence topsoil was probably eroded, possibly due to agriculture. The tops of the remains of limestones, which serve as nuclei for carbonate precipitation, were capped. Porous surfaces indicate later dissolution of the pendants, which continues even to the lowermost part. We conclude that carbonate precipitation stopped ca. 31 ka ago, possibly due to changing local climatic conditions. Comparisons with other environmental archives show that the investigated carbonate pendants in the soils around Tell Chuera have the potential to serve as an useful archive for paleoenvironmental reconstruction.


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被引频次[WOS]:1   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/126410
Appears in Collections:气候减缓与适应

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作者单位: 1.Goethe Univ Frankfurt Main, Inst Phys Geog, Altenhoferallee 1, D-60438 Frankfurt, Germany
2.Senckenberg Biodivers & Climate Res Ctr, Senckenberganlage 25, D-60325 Frankfurt, Germany

Recommended Citation:
Ernst, Mathias,Thiemeyer, Heinrich,Luedecke, Tina. Stable isotope signatures of radiocarbon dated pedogenic carbonate from Tell Chuera (NE Syria) reveal fluctuating paleoenvironmental patterns in the Pleistocene Levant[J]. ZEITSCHRIFT FUR GEOMORPHOLOGIE,2019-01-01,62:59-84
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