气候变化领域集成服务门户(CCPortal): Reconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: Indications for climate-driven changes during the last 400 years

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DOI	10.5194/cp-16-141-2020
	Reconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: Indications for climate-driven changes during the last 400 years
	Vansteenberge S.; J. De Winter N.; Sinnesael M.; Verheyden S.; Goderis S.; Claeys P.; J. M. Van Malderen S.; Vanhaecke F.
发表日期	2020
ISSN	18149324
起始页码	141
结束页码	160
卷号	16 期号:1
英文摘要	Fast-growing speleothems allow for the reconstruction of palaeoclimate down to a seasonal scale. Additionally, annual lamination in some of these speleothems yields highly accurate age models for these palaeoclimate records, making these speleothems valuable archives for terrestrial climate. In this study, an annually laminated stalagmite from the Han-sur-Lesse cave (Belgium) is used to study the expression of the seasonal cycle in northwestern Europe during the Little Ice Age. More specifically, two historical 12-year-long growth periods (ca. 1593-1605 CE and 1635-1646 CE) and one modern growth period (1960-2010 CE) are analysed on a sub-annual scale for their stable-isotope ratios (δ13C and δ18O) and trace-element (Mg, Sr, Ba, Zn, Y, Pb, U) contents. Seasonal variability in these proxies is confirmed with frequency analysis. Zn, Y and Pb show distinct annual peaks in all three investigated periods related to annual flushing of the soil during winter. A strong seasonal in-phase relationship between Mg, Sr and Ba in the modern growth period reflects a substantial influence of enhanced prior calcite precipitation (PCP). In particular, PCP occurs during summers when recharge of the epikarst is low. This is also evidenced by earlier observations of increased δ13C values during summer. In the 17th century intervals, there is a distinct antiphase relationship between Mg, Sr and Ba, suggesting that processes other than PCP, i.e. varying degrees of incongruent dissolution of dolomite, eventually related to changes in soil activity and/or land-use change are more dominant. The processes controlling seasonal variations in Mg, Sr and Ba in the speleothem appear to change between the 17th century and 1960-2010 CE. The Zn, Y, Pb, and U concentration profiles; stable-isotope ratios; and morphology of the speleothem laminae all point towards increased seasonal amplitude in cave hydrology. Higher seasonal peaks in soil-derived elements (e.g. Zn and Y) and lower concentrations of host-rock-derived elements (e.g. Mg, Sr, Ba) point towards lower residence times in the epikarst and higher flushing rates during the 17th century. These observations reflect an increase in water excess above the cave and recharge of the epikarst, due to a combination of lower summer temperatures and increased winter precipitation during the 17th century. This study indicates that the transfer function controlling Mg, Sr and Ba seasonal variability varies over time. Which process is dominant - either PCP, soil activity or dolomite dissolution - is clearly climate driven and can itself be used as a palaeoenvironment proxy. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	climate change; dolomite; land use change; paleoclimate; paleoenvironment; reconstruction; seasonal variation; seasonality; stable isotope; stalagmite; tectonic reconstruction; trace element; transfer function; Belgium; Han sur Lesse; Namur [Belgium]
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153204
作者单位	Department of Analytical, Environmental and Geochemistry, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, 1050, Belgium; Department of Geology, Ghent University, Ghent, Belgium; Royal Belgian Institute of Natural Sciences, Jennerstraat 13, Brussels, 1000, Belgium; Department of Analytical Chemistry, Ghent University, Campus Sterre, Krijgslaan 281 S12, Ghent, 9000, Belgium
推荐引用方式 GB/T 7714	Vansteenberge S.,J. De Winter N.,Sinnesael M.,et al. Reconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: Indications for climate-driven changes during the last 400 years[J],2020,16(1).
APA	Vansteenberge S..,J. De Winter N..,Sinnesael M..,Verheyden S..,Goderis S..,...&Vanhaecke F..(2020).Reconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: Indications for climate-driven changes during the last 400 years.Climate of the Past,16(1).
MLA	Vansteenberge S.,et al."Reconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: Indications for climate-driven changes during the last 400 years".Climate of the Past 16.1(2020).