Results 61 to 70 of about 1,261 (178)

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

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

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

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

Incision history of Glenwood Canyon, Colorado, USA, from the uranium-series analyses of water-table speleothems

International Journal of Speleology, 2013
Uranium-series analyses of water-table-type speleothems from Glenwood Cavern and “cavelets” near the town of Glenwood Springs, Colorado, USA, yield incision rates of the Colorado River in Glenwood Canyon for the last ~1.4 My.
Victor J. Polyak, Harvey R. DuChene, Donald G. Davis, Arthur N. Palmer, Margaret V. Palmer, Yemane Asmerom   +5 more
doaj   +1 more source

Borneo Stalagmite Evidence of Significantly Reduced El Niño‐Southern Oscillation Variability at 4.1 kyBP

Geophysical Research Letters
The timing and geographic extent of a potential “4.2 ky event” remain highly contested. Here we present records of ENSO variability at 3.8 kyBP and 4.1 kyBP derived from a Borneo stalagmite, which suggest a significant change in ENSO properties between ...
C. M. Theaker, S. A. Carolin, C. C. Day, K. M. Cobb, S. Chen, P. R. Grothe, H. O. Couper   +6 more
doaj   +1 more source

An optimized thermal extraction system for preparation of water from fluid inclusions in speleothems.

Geologica Acta, 2011
The fluid inclusions present in speleothems (secondary mineral deposits formed in caves) are a relict sample of the parent seepage water from which the speleothem was deposited and determination of their composition can solve the palaeotemperature ...
E. CABALLERO, J.A. VERA, B. ANDREO
doaj  

Speleothems

Natura Croatica, 2005
Recenzija knjige "Sige" autora Damira Lackovića u izdanju Hrvatskog prirodoslovnog muzeja.
openaire   +1 more source

Speleothems

, 2006
Fairchild, Ian J, Frisia, S, Borsato, A, Tooth, A F   +3 more
  +5 more sources