干旱区生态环境知识资源中心(Arid): DO RADIOCARBON AGES OF PLANT WAX BIOMARKERS AGREE WITH C-14-TOC/OSL-BASED AGE MODELS IN AN ARID HIGH-ALTITUDE LAKE SYSTEM?

Arid

DOI	10.1017/RDC.2021.78
	DO RADIOCARBON AGES OF PLANT WAX BIOMARKERS AGREE WITH C-14-TOC/OSL-BASED AGE MODELS IN AN ARID HIGH-ALTITUDE LAKE SYSTEM?
	Aichner, Bernhard; Gierga, Merle; Stolz, Alexander; Metrak, Monika; Wilk, Mateusz; Suska-Malawska, Malgorzata; Mischke, Steffen; Sachse, Dirk; Rajabov, Ilhomjon; Rajabov, Nasimjon; Rethemeyer, Janet
通讯作者	Aichner, B (corresponding author)，Inst Freshwater Ecol & Inland Fisheries IGB, Dept Ecosyst Res, Muggelseedamm 301, D-12587 Berlin, Germany.
来源期刊	RADIOCARBON
ISSN	0033-8222
EISSN	1945-5755
出版年	2021
卷号	63 期号:6
英文摘要	To elucidate the dynamics of terrestrial leaf waxes in a high-altitude lake system, we performed compound-specific radiocarbon analysis (CSRA) of long-chain n-alkanes in two sediment core sections from Lake Karakul (Pamirs, Tajikistan) and in surface soil samples from the catchment area. We aimed to answer the question whether the n-alkanes are delivered into the lake sediment with substantial delay due to storage in soils, which may cause a potential bias when used as paleoenvironmental proxies. In the surface soils, the CSRA results reveal an age range of n-alkanes from modern to 2278 +/- 155 cal BP. In the two sediment core samples, three of the four n-alkane ages fell on the lower ends of the 1 sigma-uncertainty ranges of modeled ages of the sediments (based on AMS C-14-TOC and OSL dating results). We conclude that sedimentary leaf waxes represent compounds with intermediate turnover time in soils, for example originating from alluvial plains close to the shores. Overall, the results provide evidence that sedimentary leaf wax compounds in this cold and arid setting are potentially older than the conventional age model indicates, but these findings need to be interpreted in context of the generally large uncertainty ranges of such age models.
英文关键词	chronology compound-specific radiocarbon analysis leaf waxes n-alkanes Pamirs Central Asia
类型	Article
语种	英语
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000742107000003
WOS关键词	OPTICALLY STIMULATED LUMINESCENCE ; COMPOUND-SPECIFIC DELTA-C-14 ; BASIN SURFACE SEDIMENT ; EASTERN PAMIRS ; N-ALKANES ; ORGANIC-COMPOUNDS ; CARBON ; KARAKUL ; TAJIKISTAN ; RECORDS
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375733
作者单位	[Aichner, Bernhard] Inst Freshwater Ecol & Inland Fisheries IGB, Dept Ecosyst Res, Muggelseedamm 301, D-12587 Berlin, Germany; [Gierga, Merle] Univ Cologne, Inst Geol & Mineral, Zulpicher Str 49B, D-50674 Cologne, Germany; [Stolz, Alexander; Rethemeyer, Janet] Univ Cologne, Inst Nucl Phys, Zulpicher Str 77, D-50937 Cologne, Germany; [Metrak, Monika; Wilk, Mateusz; Suska-Malawska, Malgorzata] Univ Warsaw, Fac Biol, Biol & Chem Res Ctr, Zwirki & Wigury 101, PL-02089 Warsaw, Poland; [Mischke, Steffen] Univ Iceland, Inst Earth Sci, Sturlugata 7, IS-102 Reykjavik, Iceland; [Sachse, Dirk] GFZ German Res Ctr Geosci, Organ Surface Geochem Lab, Sect Geomorphol 4 6, D-14473 Potsdam, Germany; [Rajabov, Ilhomjon; Rajabov, Nasimjon] State Adm Hydrometeorol Republ Tajikistan, Climate Change & Ozone Ctr, 47 Shevchenko St, Dushanbe 734025, Tajikistan
推荐引用方式 GB/T 7714	Aichner, Bernhard,Gierga, Merle,Stolz, Alexander,et al. DO RADIOCARBON AGES OF PLANT WAX BIOMARKERS AGREE WITH C-14-TOC/OSL-BASED AGE MODELS IN AN ARID HIGH-ALTITUDE LAKE SYSTEM?[J],2021,63(6).
APA	Aichner, Bernhard.,Gierga, Merle.,Stolz, Alexander.,Metrak, Monika.,Wilk, Mateusz.,...&Rethemeyer, Janet.(2021).DO RADIOCARBON AGES OF PLANT WAX BIOMARKERS AGREE WITH C-14-TOC/OSL-BASED AGE MODELS IN AN ARID HIGH-ALTITUDE LAKE SYSTEM?.RADIOCARBON,63(6).
MLA	Aichner, Bernhard,et al."DO RADIOCARBON AGES OF PLANT WAX BIOMARKERS AGREE WITH C-14-TOC/OSL-BASED AGE MODELS IN AN ARID HIGH-ALTITUDE LAKE SYSTEM?".RADIOCARBON 63.6(2021).