Arid
DOI10.1016/j.palaeo.2011.04.006
Valve chemistry of Limnocythere inopinata (Ostracoda) in a cold arid environment - Implications for paleolimnological interpretation
Van der Meeren, Thijs1,2; Ito, Emi3,4; Verschuren, Dirk1; Almendinger, James E.5; Martens, Koen1,2
通讯作者Van der Meeren, Thijs
来源期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
EISSN1872-616X
出版年2011
卷号306期号:3-4页码:116-126
英文摘要

The geochemical fingerprint of biogenic calcite is largely governed by the physical environment and water chemistry at the place and time of calcification, which is in turn related to both the ecology and phenology of the target study species. We present data on the valve chemistry (delta O-18, delta C-13, Mg/Ca, Sr/Ca) of living Limnocythere inopinata, a common and eurytopic Holarctic ostracode species, and on simultaneously collected water chemistry data from 15 water bodies in western Mongolia. These selected lake and pond study sites provide a fair representation of the regional trend in solute evolution towards pronounced calcium depletion, which is further characterized by good correlation between Mg/Ca-water and total dissolved solids. Ostracode valve chemistry analysis showed that the Sr/Ca ratio (Sr/Ca-valve) correlates better with Sr/Ca-water than Mg/Ca-valve does with Mg/Ca-water, perhaps because Sr/Ca is less affected by calcification rate and temperature. The difference in delta O-18 between the collected valves and a hypothetical ostracode calcite formed during midsummer reveals an overall coherent trend of evaporative enrichment during summer in the sampled perennial water bodies, whereas smaller and/or ephemeral water bodies appear to be stronger impacted by stochastic rain events. Among-lake variation in delta C-13 likely reflects the regional gradient in aquatic productivity, and the uniform pattern of relatively small mean offset between the delta C-13 of ostracode valves and of surface-water dissolved inorganic carbon suggests epibenthic molting behavior in a well-mixed littoral habitat. The observed patterns in water and valve chemistry further suggest that females of L inopinata, in this particular climatic setting, molt to adult in early summer. This information on calcification time and environment contributes to more rigorous paleo-environmental interpretation of lake-sediment records of this common species in central Asia. Our results also suggest potential for quantitative salinity reconstruction based on ostracode Mg/Ca-valve in western Mongolian lakes, however this needs to be constrained by insight in the local hydrology and hydrochemistry of the reconstruction site. (C) 2011 Elsevier B.V. All rights reserved.


英文关键词Non-marine ostracodes Valve chemistry Central Asia Quantitative inference Solute evolution Stable isotopes
类型Article
语种英语
国家Belgium ; USA
收录类别SCI-E
WOS记录号WOS:000292410100002
WOS关键词CARBON-ISOTOPE FRACTIONATION ; OXYGEN-ISOTOPE ; QUANTITATIVE RECONSTRUCTION ; PARTITION-COEFFICIENTS ; FOSSIL OSTRACODES ; TRACE-ELEMENT ; NORTH-DAKOTA ; DEVILS LAKE ; PALEOSALINITY ; GEOCHEMISTRY
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向Physical Geography ; Geology ; Paleontology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169895
作者单位1.Univ Ghent, Limnol Unit, Dept Biol, B-9000 Ghent, Belgium;
2.Royal Belgian Inst Nat Sci, B-1000 Brussels, Belgium;
3.Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN 55455 USA;
4.Univ Minnesota, Limnol Res Ctr, Minneapolis, MN 55455 USA;
5.Sci Museum Minnesota, St Croix Watershed Res Stn, St Paul, MN 55047 USA
推荐引用方式
GB/T 7714
Van der Meeren, Thijs,Ito, Emi,Verschuren, Dirk,et al. Valve chemistry of Limnocythere inopinata (Ostracoda) in a cold arid environment - Implications for paleolimnological interpretation[J],2011,306(3-4):116-126.
APA Van der Meeren, Thijs,Ito, Emi,Verschuren, Dirk,Almendinger, James E.,&Martens, Koen.(2011).Valve chemistry of Limnocythere inopinata (Ostracoda) in a cold arid environment - Implications for paleolimnological interpretation.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,306(3-4),116-126.
MLA Van der Meeren, Thijs,et al."Valve chemistry of Limnocythere inopinata (Ostracoda) in a cold arid environment - Implications for paleolimnological interpretation".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 306.3-4(2011):116-126.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Van der Meeren, Thijs]的文章
[Ito, Emi]的文章
[Verschuren, Dirk]的文章
百度学术
百度学术中相似的文章
[Van der Meeren, Thijs]的文章
[Ito, Emi]的文章
[Verschuren, Dirk]的文章
必应学术
必应学术中相似的文章
[Van der Meeren, Thijs]的文章
[Ito, Emi]的文章
[Verschuren, Dirk]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。