Results 91 to 100 of about 10,968 (159)

Perspective on ice age terminations from absolute chronologies provided by global speleothem records [PDF]

Climate of the Past
Glacial terminations represent the largest-amplitude global climate changes of the last few million years. Several possible orbital-insolation triggers have been described to initiate and sustain glacial terminations.
N. Kaushal, N. Kaushal, C. Pérez-Mejías, H. M. Stoll   +3 more
doaj   +1 more source

Methods and codes for reservoir–atmosphere C-14 age offset calculations [PDF]

, 2015
Author Posting. © The Author(s), 2015. This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution.
Soulet, Guillaume
core   +1 more source

Holocene Hydroclimatic Variations Over Western and Central Asia as Inferred From Speleothem Isotope Evidence

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Recent studies have found a dipole pattern of hydroclimate variation in western Asia (WA) and arid central Asia (ACA) during the Holocene. However, speleothem δ18O evidence shows some inconsistencies with other lines of evidence, especially concerning the timing of peak wetness in WA and precipitation trends in ACA.
Liang Ning, Fangmiao Xing, Zhengyu Liu, Jian Liu, Yanmin Qin, Qin Wen, Michael E. Mann, Yan Yu, Yongjin Wang, Mi Yan, Huayu Lu, Naixin Cao, Kefan Chen, Weiyi Sun   +13 more
wiley   +1 more source

Improving the age constraints on the archeological record in Scladina Cave (Belgium): new speleothem U–Th ages [PDF]

Climate of the Past
The sedimentary sequence in Scladina Cave (Belgium) is well-known for its rich Middle Paleolithic assemblages and its numerous faunal remains. Of particular interest is the presence of a nearly complete mandible of a Neanderthal child.
H. B. Vonhof, S. Verheyden, D. Bonjean, S. Pirson, S. Pirson, M. Weber, D. Scholz, J. Hellstrom, H. Cheng, H. Cheng, X. Jia, K. Di Modica, G. Abrams, G. Abrams, M. A. P. van Nunen, J. Ruiter, M. van der Does, D. Böhl, J. H. J. L. van der Lubbe   +18 more
doaj   +1 more source

Late Quaternary Variations in the South American Monsoon System as Inferred by Speleothems—New Perspectives Using the SISAL Database

Quaternary, 2019
Here we present an overview of speleothem δ18O records from South America, most of which are available in the Speleothem Isotopes Synthesis and Analysis (SISAL_v1) database.
Michael Deininger, Brittany Marie Ward, Valdir F. Novello, Francisco W. Cruz   +3 more
doaj   +1 more source

Calcite moonmilk of microbial origin in the Etruscan Tomba degli Scudi in Tarquinia, Italy [PDF]

, 2018
A white deposit covering the walls in the Stanza degli Scudi of the Tomba degli Scudi, Tarquinia, Italy, has been investigated. In this chamber, which is still preserved from any kind of intervention such as cleaning and sanitization, ancient Etruscans ...
Arrighi, Chiara, Cardazzo, Barbara, Cirigliano, Angela, Di Pietro, Marta, Gentili, Maria Donatella, Maneschi, Maria Lorella, Mazzoni, Cristina, Mura, Francesco, Negri, Rodolfo, Rinaldi, Teresa, Tomassetti, Maria Cristina   +10 more
core   +3 more sources

Data-model comparison of soil–water δ 18 O at a temperate site in N. Spain with implications for interpreting speleothem δ 18 O [PDF]

, 2015
An understanding of how seasonal and longer-term d18O signals in meteoric precipitation (d18Op) are modified by percolation through soils is essential to link temporal changes in speleothem d18O to surface climatic conditions.
Ayalon, Baker, Baker, Baldini, Baldini, Baldini, Barnes, Bieroza, Bradley, Brodersen, Cerling, Chen, Comas-Bru, Cuthbert, Dansgaard, Fairchild, Fontes, Frank McDermott, Gazis, Gehrels, Genty, Hamon, Hoefs, Hsieh, Jackson, Jex, Kottek, Laia Comas-Bru, Leng, Li, Majoube, Mather, Mathieu, McCarroll, McDermott, Merlivat, Moerman, Newman, Rayleigh, Robertson, Rozanski, Schid, Shurbaji, Smart, Tang, Thornthwaite, Tooth, Trajkovic, Wackerbarth, Williams, Xu, Zimmermann   +51 more
core   +2 more sources

España Speleothems in karstic caves beneath paleoglaciers in the Central Pyrenees

Geogaceta
We explore the potential of various caves and karst systems of the Central Pyrenees (Lecherines-Collarada-Monte Perdido-Escuaín-Vignemale-Cotiella-Aneto-Maladeta) that could host speleothems that grew in karstic caves under glaciated areas.
Miguel Bartolomé Úcar, Ánchel Belmonte-Ribas, Reyes Giménez, Mario Bielsa, Gerard Cazenave, Ana Moreno   +5 more
doaj   +1 more source

Subterranean glacial spillways: an example from the karst of South Wales, UK [PDF]

, 2013
Many karst areas in the UK have been glaciated one or more times during the last 0.5 Ma, yet there are few documented examples of caves in these regions being affected by glacial processes other than erosion.
Farrant, Andrew R., Noble, Stephen R., Simms, Michael J.   +2 more
core  

Speleothems from the Middle East: An Example of Water Limited Environments in the SISAL Database

Quaternary, 2019
The Middle East (ME) spans the transition between a temperate Mediterranean climate in the Levant to hyper-arid sub-tropical deserts in the southern part of the Arabian Peninsula (AP), with the complex alpine topography in the northeast feeding the ...
Yuval Burstyn, Belen Martrat, Jordi F. Lopez, Eneko Iriarte, Matthew J. Jacobson, Mahjoor Ahmad Lone, Michael Deininger   +6 more
doaj   +1 more source