Zobrazeno 1 - 10
of 1 059
pro vyhledávání: '"A. Immenhauser"'
Autor:
C. Nava-Fernandez, A. Hartland, F. Gázquez, O. Kwiecien, N. Marwan, B. Fox, J. Hellstrom, A. Pearson, B. Ward, A. French, D. A. Hodell, A. Immenhauser, S. F. M. Breitenbach
Publikováno v:
Hydrology and Earth System Sciences, Vol 24, Pp 3361-3380 (2020)
Cave microclimate and geochemical monitoring is vitally important for correct interpretations of proxy time series from speleothems with regard to past climatic and environmental dynamics. We present results of a comprehensive cave-monitoring program
Externí odkaz:
https://doaj.org/article/84a7c8f07b8346cfb910695db7c7a59b
Publikováno v:
Climate of the Past, Vol 15, Pp 1327-1344 (2019)
Short-term hypoxia in epeiric water masses is a common phenomenon of modern marine environments and causes mass mortality in coastal marine ecosystems. Here, we test the hypothesis that during the early Aptian, platform-top hypoxia temporarily establ
Externí odkaz:
https://doaj.org/article/0192095c36814e84a38a22683e3f38c2
Ostracods as ecological and isotopic indicators of lake water salinity changes: the Lake Van example
Publikováno v:
Biogeosciences, Vol 16, Pp 2095-2114 (2019)
Ostracods are common lacustrine calcitic microfossils. Their faunal assemblage and morphological characteristics are important ecological proxies, and their valves are archives of geochemical information related to palaeoclimatic and palaeohydrologic
Externí odkaz:
https://doaj.org/article/441f8a0d45544f15947f2646298dab8c
Autor:
L. A. Casella, E. Griesshaber, X. Yin, A. Ziegler, V. Mavromatis, D. Müller, A.-C. Ritter, D. Hippler, E. M. Harper, M. Dietzel, A. Immenhauser, B. R. Schöne, L. Angiolini, W. W. Schmahl
Publikováno v:
Biogeosciences, Vol 14, Iss 6, Pp 1461-1492 (2017)
Biomineralised hard parts form the most important physical fossil record of past environmental conditions. However, living organisms are not in thermodynamic equilibrium with their environment and create local chemical compartments within their bodie
Externí odkaz:
https://doaj.org/article/1d3db778de24458ebe02a8348452b0cf
Autor:
T. Kluge, H. P. Affek, T. Marx, W. Aeschbach-Hertig, D. F. C. Riechelmann, D. Scholz, S. Riechelmann, A. Immenhauser, D. K. Richter, J. Fohlmeister, A. Wackerbarth, A. Mangini, C. Spötl
Publikováno v:
Climate of the Past, Vol 9, Iss 1, Pp 377-391 (2013)
The geochemical signature of many speleothems used for reconstruction of past continental climates is affected by kinetic isotope fractionation. This limits quantitative paleoclimate reconstruction and, in cases where the kinetic fractionation varies
Externí odkaz:
https://doaj.org/article/11b8a9c5de354b8c94d9663c35737f48
Autor:
S. Riechelmann, D. Buhl, A. Schröder-Ritzrau, D. F. C. Riechelmann, D. K. Richter, H. B. Vonhof, J. A. Wassenburg, A. Geske, C. Spötl, A. Immenhauser
Publikováno v:
Climate of the Past, Vol 8, Iss 6, Pp 1849-1867 (2012)
Here we explore the potential of magnesium (δ26Mg) isotope time-series data as continental climate proxies in speleothem calcite archives. For this purpose, a total of six Pleistocene and Holocene stalagmites from caves in Germany, Morocco and Peru
Externí odkaz:
https://doaj.org/article/035724bfb3f04cce8f197353a56bf863
Autor:
J. Fohlmeister, A. Schröder-Ritzrau, D. Scholz, C. Spötl, D. F. C. Riechelmann, M. Mudelsee, A. Wackerbarth, A. Gerdes, S. Riechelmann, A. Immenhauser, D. K. Richter, A. Mangini
Publikováno v:
Climate of the Past, Vol 8, Iss 5, Pp 1751-1764 (2012)
Holocene climate was characterised by variability on multi-centennial to multi-decadal time scales. In central Europe, these fluctuations were most pronounced during winter. Here we present a record of past winter climate variability for the last 10.
Externí odkaz:
https://doaj.org/article/8ddc0d3fdf4b4607b0808e1f0c39e93f
Autor:
S. Hahn, R. Rodolfo-Metalpa, E. Griesshaber, W. W. Schmahl, D. Buhl, J. M. Hall-Spencer, C. Baggini, K. T. Fehr, A. Immenhauser
Publikováno v:
Biogeosciences, Vol 9, Iss 5, Pp 1897-1914 (2012)
Bivalve shells can provide excellent archives of past environmental change but have not been used to interpret ocean acidification events. We investigated carbon, oxygen and trace element records from different shell layers in the mussels Mytilus gal
Externí odkaz:
https://doaj.org/article/b668975d09e6420bb87a42cf15c4658d
Publikováno v:
The Cryosphere, Vol 4, Iss 4, Pp 501-509 (2010)
Weichselian cryogenic calcites collected in what is referred to as the Rätselhalle of the Herbstlabyrinth-Advent Cave system are structurally classified as rhombohedral crystals and spherulitic aggregates. The carbon and oxygen isotopic composition
Externí odkaz:
https://doaj.org/article/35096738bc0b49ef87287eaf7023b954
Autor:
Cinthya Nava‐Fernandez, Tobias Braun, Chelsea L. Pederson, Bethany Fox, Adam Hartland, Ola Kwiecien, Sebastian N. Höpker, Stefano Bernasconi, Madalina Jaggi, John Hellstrom, Fernando Gázquez, Amanda French, Norbert Marwan, Adrian Immenhauser, Sebastian F. M. Breitenbach
Publikováno v:
The Depositional Record, Vol 10, Iss 1, Pp 176-194 (2024)
Abstract El Niño–Southern Oscillation dynamics affect global weather patterns, with regionally diverse hydrological responses posing critical societal challenges. The lack of seasonally resolved hydrological proxy reconstructions beyond the observ
Externí odkaz:
https://doaj.org/article/b1ac932b7efa4da3af6a5a4ac363153e