Zobrazeno 1 - 10
of 3 787
pro vyhledávání: '"speleothem"'
Autor:
Daniele Ghezzi, Nicasio Tomás Jiménez-Morillo, Lisa Foschi, Eva Donini, Veronica Chiarini, Jo De Waele, Ana Zélia Miller, Martina Cappelletti
Publikováno v:
Environmental Microbiome, Vol 19, Iss 1, Pp 1-20 (2024)
Abstract Background Moonmilk represents complex secondary structures and model systems to investigate the interaction between microorganisms and carbonatic rocks. Grotta Nera is characterized by numerous moonmilk speleothems of exceptional size hangi
Externí odkaz:
https://doaj.org/article/e7c23946cd2c4c24b077f06b649ea001
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)
Abstract The regional impact of abrupt glacial climate variability remains poorly constrained for arid southwestern Asia, particularly winter dynamics during Marine Isotope Stage 3, due to limited paleoarchives in the Middle East. Here, we present co
Externí odkaz:
https://doaj.org/article/98e23acdf7f04d07a10c0a18cfb04927
Autor:
Micheline Campbell, Pauline C. Treble, Liza K. McDonough, Sebastian Naeher, Andy Baker, Pauline F. Grierson, Henri Wong, Martin S. Andersen
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 5, Pp n/a-n/a (2024)
Abstract Understanding past fire regimes and how they vary with climate, human activity, and vegetation patterns is fundamental to the mitigation and management of changing fire regimes as anthropogenic climate change progresses. Ash‐derived trace
Externí odkaz:
https://doaj.org/article/094716368caf469b990468f9c537f021
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 6, Pp n/a-n/a (2024)
Abstract 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 pro
Externí odkaz:
https://doaj.org/article/c88c8ea180e64318a3cac63d8a30e405
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 34, Iss 1, Pp 1-26 (2023)
Abstract The Yellow River Plain (YRP), being regarded as the cradle of Chinese civilization, is traditionally thought to be the locale of the Great Flood, a hazardous flood (or floods) tamed by Yu who started China’s first “dynasty”, Xia, in ~
Externí odkaz:
https://doaj.org/article/002d4e46d3604a138e961df7b53aad96
Autor:
Fatma A. Mousa, Mohamed M. Abu El-Hassan, Hamdalla A. Wanas, Emad S. Sallam, Vladimir A. Ermolaev, Dmitry A. Ruban
Publikováno v:
International Journal of Geoheritage and Parks, Vol 11, Iss 3, Pp 331-348 (2023)
The central part of the Western Desert of Egypt, where the Bahariya and Farafra oases are situated, possesses many notable geological features. However, to date the related geoheritage information remains incomplete. Field investigation has permitted
Externí odkaz:
https://doaj.org/article/e9db211b910f4c17b7e25d086b528a55
Autor:
Adrian Immenhauser, Rene Hoffmann, Sylvia Riechelmann, Mathias Mueller, Dennis Scholz, Stefan Voigt, Stefan Niggemann, Dieter Buhl, Maximilian Dornseif, Alexander Platte
Publikováno v:
The Depositional Record, Vol 9, Iss 3, Pp 413-436 (2023)
Abstract Cave carbonates, seemingly growing in defiance of gravity, have attracted the community's interest for more than a century. This paper focusses on ‘helictites’, contorted vermiform speleothems with central capillaries. Petrographic, crys
Externí odkaz:
https://doaj.org/article/e26e3bd02e35484282ee1b8d6c7af9d4
Publikováno v:
Minerals, Vol 14, Iss 5, p 519 (2024)
The Indo-Pacific, a vast biogeographic of Earth, is influenced by both the Indian and East Asian monsoons. Despite its geographical importance, this region has been less studied compared to East Asia and India. Here, we present speleothem records fro
Externí odkaz:
https://doaj.org/article/84d0ef0f4f154b55a554a02bded8ad9b
Autor:
Qingmin Chen, Xing Cheng, Li Deng, Kaikai He, Wenshuo Zhang, Gang Xue, Zeke Zhang, Le Ma, Gaohong Wang, Hai Cheng, R. Lawrence Edwards
Publikováno v:
Minerals, Vol 14, Iss 5, p 450 (2024)
Speleothem δ13C in monsoonal China differs from speleothem δ18O, which is widely used as a climatic proxy for several complex control reasons. Nevertheless, δ13C records have the potential to reveal the implications of hydroclimatic changes. This
Externí odkaz:
https://doaj.org/article/2342c62c1c844944a32b9450e070a0b1
Autor:
Maialen Lopez-Elorza, Therese Weißbach, M. Belén Muñoz-García, Tobias Kluge, Werner Aeschbach, Javier Martín-Chivelet
Publikováno v:
Minerals, Vol 14, Iss 3, p 267 (2024)
Fluid inclusions in stalagmites are becoming increasingly important for paleoclimate research. Within this framework, noble gas thermometry, based on noble gases dissolved in water from fluid inclusions, provides quantitative estimations of cave air
Externí odkaz:
https://doaj.org/article/22b2874e440a44aa8f8cc3b4800c3bc3