The ELSA - Stacks (Eifel-Laminated-Sediment-Archive): An introduction

Sirocko, Frank

doi:10.1016/j.gloplacha.2016.03.011

Cited by 23 publications

(7 citation statements)

References 22 publications

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“…We start the synthesis with our own dust and pollen records from Eifel (Seelos et al, 2009;Sirocko et al, 2016), which we compare with speleothem data from nearby Bunker Cave (Fohlmeister et al, 2012(Fohlmeister et al, , 2013Weber et al, 2018) as well as the Spannagel Cave in Austria (Holzkämper et al, 2004;Spötl and Mangini, 2002). The maar sediment cores of the Eifel Laminated Sediment Archive (ELSA)-project (Sirocko, 2016;Sirocko et al, 2016) show all Greenland Stadials (GS) and…”

Section: Introductionmentioning

confidence: 99%

Global aridity synthesis for the last 60 000 years

Fuhrmann

Diensberg

Gong

et al. 2019

Preprint

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Abstract. A compilation of published literature on the dust content in terrestrial and marine sediment cores are synchronised on the basis of pollen data and speleothem growth phases within GICC05 age constrain. Based on that, aridity patterns for ten key areas in the global climate system are reconstructed over the past 60 000 years. These records have different time resolutions and rely on different dating methods, thus of various types of stratigraphy. Nevertheless, all regions show humid conditions during the early MIS3 and early Holocene, but not always of the same timing. Such discrepancies have been interpreted as regional effects while also due to stratigraphical uncertainties. In comparison, the MIS2 interval becomes arid in all northern hemisphere records, but the peak arid conditions of the Last Glacial Maximum (LGM) differ in duration and intensity among regions. In addition, we also make comparisons between the aridity synthesis to modelling results using a Global Climate Model (GCM). Indeed, both lines of evidence show great agreement for the Holocene, LGM and for the late MIS intervals.

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Section: Introductionmentioning

confidence: 99%

Global aridity synthesis for the last 60 000 years

Fuhrmann

Diensberg

Gong

et al. 2019

Preprint

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“…Deep, stratified lakes with good preservation conditions are especially good records of past environmental changes (Meyers 2003; Adrian et al . 2009; Sirocko 2016; Smol 2017) and laminated lake sediments allow precise dating (Zolitschka et al . 2015).…”

Section: Figmentioning

confidence: 99%

“…In this study biomarkers were analysed in sediments of two maars in the Eifel (Germany). The maars in the Eifel are well‐established archives for studies of the environment of the Lateglacial and the Holocene (Sirocko 2016). Their sediments have been dated independently using 137 Cs, 210 Pb, 14 C, varve counting, luminescence and argon/argon dating techniques (Sirocko et al .…”

Section: Figmentioning

confidence: 99%

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Faecal biomarkers as tools to reconstruct land‐use history in maar sediments in the Westeifel Volcanic Field, Germany

Birk

Reetz

Sirocko

et al. 2021

Boreas

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The analysis of faecal biomarkers in lake sediments has been used to reconstruct human population densities and animal husbandry practices in an increasing number of studies in recent years. However, terrigenous biomarkers can decompose in soils, can be stored and redeposited in colluvium and on flood-plains prior to their ultimate deposition in lakes. These and other effects can blur and distort biomarker signals. Therefore, we analysed sediments from two maars in Westeifel to evaluate whether signals of the faecal biomarkers (5b-stanols, bile acids) demonstrate statistically significant differences between contrasting periods in land-use intensity. In Holzmaar, palaeoenvironmental data showed evidence for agriculture including cereal cultivation and grassland during the pre-Roman Iron Age and Middle Ages compared with those from periods that were less influenced by land use and showed a higher abundance of broadleaf forest. However, the specific domesticated taxa of livestock in the locale from these periods remain speculative. We found statistically significantly different faecal biomarker signals, which we interpret to be related to an enhanced deposition of faeces of horses, pigs and ruminants in the core sections that represented periods of amplified land use. The analyses of grass-and broadleaf-tree characteristic n-alkanes supported the applicability of biomarkers for land-use reconstruction. Stanol data from a core section dating to the Mesolithic showed no clear results. Analyses of two core sections from Ulmener Maar, which covered periods before and after the decline of elm in the Neolithic, indicated input of pig faeces in the younger section. This study provides important evidence that faecal biomarkers can be used for land-use reconstruction in central European lakes with small catchment areas for time periods from the Neolithic onwards. The results underscore the importance of bile acid analyses in addition to stanol analyses for an identification of faeces inputs from different animals.

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“…For the Arabian Sea region, we used total organic carbon (TOC) as an aridity proxy instead of tree pollen, as there were no available pollen data in databases but an excellent organic carbon record. High TOC in the Arabian Sea sediments is caused by high south-west monsoon intensity; intense upwelling and surface water nutrient content; and high fluxes of organic matter, which cause low oxygen levels in deep water (Schulz, et al, 1998;Sirocko et al, 1993;Sirocko and Ittekkot, 1992). We use only one record per region for dust and vegetation, because there are few and these proxy records are very difficult to combine.…”

Section: Data Treatment and Aridity Index Calculationmentioning

confidence: 99%

Aridity synthesis for eight selected key regions of the global climate system during the last 60 000 years

et al. 2020

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Abstract. A compilation of the published literature on dust content in terrestrial and marine sediment cores was synchronized with pollen data and speleothem growth phases on the Greenland Ice Core Chronology 2005 (GICC05) time axis. Aridity patterns for eight key areas of the global climate system have been reconstructed for the last 60 000 years. These records have different time resolutions and different dating methods, i.e. different types of stratigraphy. Nevertheless, all regions analysed in this study show humid conditions during early Marine Isotope Stage 3 (MIS3) and the early Holocene or deglaciation, but not always at the same time. Such discrepancies have been interpreted as regional effects, although stratigraphic uncertainties may affect some of the proposed interpretations. In comparison, most of the MIS2 interval becomes arid in all of the Northern Hemisphere records, but the peak arid conditions of the Last Glacial Maximum (LGM) and Heinrich event 1 differ in duration and intensity among regions. In addition, we also compare the aridity synthesis with modelling results using a global climate model (GCM). Indeed, geological archives and GCMs show agreement on the aridity pattern for the Holocene or deglaciation, for the LGM and for late MIS3.

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The ELSA - Stacks (Eifel-Laminated-Sediment-Archive): An introduction

Cited by 23 publications

References 22 publications

Global aridity synthesis for the last 60 000 years

Global aridity synthesis for the last 60 000 years

Faecal biomarkers as tools to reconstruct land‐use history in maar sediments in the Westeifel Volcanic Field, Germany

Aridity synthesis for eight selected key regions of the global climate system during the last 60 000 years

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