Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Andre Baldermann"'
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-12 (2022)
The Ediacaran-age Doushantuo Formation, which hosts some of the oldest animal fossils, was likely deposited in a restricted, mildly evaporitic lagoon environment, according to petrographic analyses of saponite clays that suggest an authigenic origin.
Externí odkaz:
https://doaj.org/article/4b9aa61e959d4e56a53a65ebffa07d27
Autor:
Andre Baldermann, Santanu Banerjee, György Czuppon, Martin Dietzel, Juraj Farkaš, Stefan Lӧhr, Ulrike Moser, Esther Scheiblhofer, Nicky M. Wright, Thomas Zack
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
Here the authors show that reverse weathering reactions, such as the formation of glauconite minerals, are first-order controls on element sequestration in shallow marine sediments throughout Earth history, in particular during greenhouse periods wit
Externí odkaz:
https://doaj.org/article/9bb61079217940868ac96ee63b8865f0
The Calcium Isotope (δ44/40Ca) Record Through Environmental Changes: Insights From the Late Triassic
Autor:
Zsófia Kovács, Isaline Demangel, Andre Baldermann, Dorothee Hippler, Anne‐Désirée Schmitt, Sophie Gangloff, Leopold Krystyn, Sylvain Richoz
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 12, Pp n/a-n/a (2022)
Abstract Calcium isotopes (δ44/40Ca) are particularly useful in palaeo‐environmental studies due to the key role of carbonate minerals in continental weathering and their formation in seawater. The calcium isotope ratio can provide hints on past c
Externí odkaz:
https://doaj.org/article/5e50ba76f3bb43479d5262d1dd45385b
Autor:
Shujun Han, Stefan C. Lӧhr, April N. Abbott, Andre Baldermann, Juraj Farkaš, William McMahon, Kitty L. Milliken, Mehrnoush Rafiei, Cassandra Wheeler, Michael Owen
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Sedimentary rocks contain a unique record of the evolution of the Earth system. Deciphering this record requires a robust understanding of the identity, origin, composition, and post-depositional history of individual constituents. Petrographic analy
Externí odkaz:
https://doaj.org/article/f1573fed635644cc9276d0556bf39fd5
Autor:
Andre Baldermann, Florian Mittermayr, Stefano M. Bernasconi, Martin Dietzel, Cyrill Grengg, Dorothee Hippler, Tobias Kluge, Albrecht Leis, Ke Lin, Xianfeng Wang, Andrea Zünterl, Ronny Boch
Publikováno v:
Communications Earth & Environment, Vol 1, Iss 1, Pp 1-12 (2020)
Palaeo-environmental conditions can be recorded in low-temperature continental archives, according to geochemical and isotopic analyses of dolomitic fracture infills at Erzberg, Austria
Externí odkaz:
https://doaj.org/article/3f26728748e644b3874685dd1aa12816
Publikováno v:
Case Studies in Construction Materials, Vol 15, Iss , Pp e00606- (2021)
Consolidation of MgO castables by organic acids is a common technique for various applications, but the distinct hardening mechanisms of caste stone formation are still poorly constrained. In this study, the individual hardening behavior was experime
Externí odkaz:
https://doaj.org/article/5679192e242b4bcc8256afc02b662f78
Autor:
Simon Oberhollenzer, Andre Baldermann, Roman Marte, Djemil Mahamat Moussa Tahir, Franz Tschuchnigg, Martin Dietzel, Manfred Nachtnebel
Publikováno v:
Geosciences, Vol 12, Iss 9, p 333 (2022)
Fine-grained sedimentary deposits can bear an increased risk for building settlements due to their moderate stiffness and strength properties, as well as high groundwater tables. However, some buildings, e.g., situated on shallow foundations in Alpin
Externí odkaz:
https://doaj.org/article/3c075199f98e4a7580b59ba2c380522c
Autor:
Andre Baldermann, Andrea Cäcilia Grießbacher, Claudia Baldermann, Bettina Purgstaller, Ilse Letofsky-Papst, Stephan Kaufhold, Martin Dietzel
Publikováno v:
Geosciences, Vol 8, Iss 9, p 309 (2018)
The capacity and mechanism of the adsorption of aqueous barium (Ba), cobalt (Co), strontium (Sr), and zinc (Zn) by Ecuadorian (NatAllo) and synthetic (SynAllo-1 and SynAllo-2) allophanes were studied as a function of contact time, pH, and metal ion c
Externí odkaz:
https://doaj.org/article/2b1bc72d03c24660b7e82024793e16f1
Autor:
Isaline Demangel, Zsófia Kovács, Silvia Gardin, Leopold Krystyn, Werner E. Piller, Andre Baldermann, Sylvain Richoz
Publikováno v:
Lethaia. 56:1-24
Publikováno v:
International Journal of Sediment Research. 38:33-48
The aim of this paper is to show the concise chemico-physical adsorbent performance of water purification systems utilizing geo- (e.g., allophane, clinoptilolite, and smectite) and bio-polymer materials (e.g., chitosan or cellulose nanocomposite mate