Zobrazeno 1 - 10
of 94
pro vyhledávání: '"David Wacey"'
Autor:
Rustam A. Lukmanov, Andreas Riedo, David Wacey, Niels F. W. Ligterink, Valentine Grimaudo, Marek Tulej, Coenraad de Koning, Anna Neubeck, Peter Wurz
Publikováno v:
Frontiers in Artificial Intelligence, Vol 4 (2021)
In this contribution, we present results of non-linear dimensionality reduction and classification of the fs laser ablation ionization mass spectrometry (LIMS) imaging dataset acquired from the Precambrian Gunflint chert (1.88 Ga) using a miniature t
Externí odkaz:
https://doaj.org/article/9c8f6c7e2d13443d8cffaddbcd547ea2
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Abstract Exceptional microfossil preservation, whereby sub-cellular details of an organism are conserved, remains extremely rare in the Precambrian rock record. We here report the first occurrence of exceptional cellular preservation by the rare eart
Externí odkaz:
https://doaj.org/article/39f0318f7af9402da050a810833f4cfe
Autor:
Rustam A. Lukmanov, Marek Tulej, Reto Wiesendanger, Andreas Riedo, Valentine Grimaudo, Niels F.W. Ligterink, Coenraad de Koning, Anna Neubeck, David Wacey, Peter Wurz
Publikováno v:
Astrobiology. 22:369-386
The investigation of chemical composition on planetary bodies without significant sample processing is of importance for nearly every mission aimed at robotic exploration. Moreover, it is a necessary tool to achieve the longstanding goal of finding e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0a951475b877350be4f945b04d8f98c
https://doi.org/10.1089/ast.2019.2201
https://doi.org/10.1089/ast.2019.2201
Autor:
Raphael J. Baumgartner, Anais Pagès, Marco L. Fiorentini, Chris Ryan, Martin J. Van Kranendonk, David Wacey, Charlie Kong, Martin Saunders
Publikováno v:
Geobiology. 18:415-425
The shallow marine and subaerial sedimentary and hydrothermal rocks of the ~3.48 billion-year-old Dresser Formation are host to some of Earth's oldest stromatolites and microbial remains. This study reports on texturally distinctive, spherulitic bari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::949bcadfe1b796c55f41130bc03d35ec
https://doi.org/10.1111/gbi.12392
https://doi.org/10.1111/gbi.12392
Publikováno v:
Goldschmidt2022 abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc61da6490dbfe043d5af79deeb6546
https://doi.org/10.46427/gold2022.12920
https://doi.org/10.46427/gold2022.12920
Microbial sulphur-cycling and atmospheric signatures in the 2.52 Ga Gamohaan Formation, South Africa
Publikováno v:
Earth and Planetary Science Letters. 602:117941
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63044dd85fc7acdd77fc3864556e0d48
https://doi.org/10.1016/j.epsl.2022.117941
https://doi.org/10.1016/j.epsl.2022.117941
Autor:
Alexander T. Brasier, Simon Crook, John Parnell, Paul F. Dennis, Timothy Culwick, John Still, David Muirhead, David Wacey, Adrian J. Boyce, Stephen A. Bowden, Martin D. Brasier
Publikováno v:
Precambrian Research. 328:309-320
Putative stromatolites and associated carbonate minerals in 1.1 Ga Stoer Group lacustrine sedimentary rocks were analysed to deduce their likely origins. Potential stromatolite examples included finely laminated and sometimes wrinkled carbonate-silic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8994d713e3d8d6792a066e511cab3824
https://doi.org/10.1016/j.precamres.2019.04.025
https://doi.org/10.1016/j.precamres.2019.04.025
Publikováno v:
Journal of the Geological Society. 176:1247-1260
Filamentous microfossils belonging to Cephalophytarion from the 850 Ma Bitter Springs Group have previously been used as key analogues in support of a biological interpretation for filamentous objects from the 3460 Ma Apex chert. Here we provide a ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::153073f1e18bf0c2cf135f2170fa18cb
https://doi.org/10.1144/jgs2019-053
https://doi.org/10.1144/jgs2019-053
Publikováno v:
Precambrian Research. 321:64-84
The detrital zircon record yields important information on crustal evolution that may be missing from extant magmatic rocks. The Palaeoarchaean to Neoarchaean East Pilbara Terrane (EPT), Western Australia, is the ancient core of the Pilbara Craton, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4da2c99d55be7cc0a95d1ac75cf312bb
https://doi.org/10.1016/j.precamres.2018.11.023
https://doi.org/10.1016/j.precamres.2018.11.023
Autor:
Coenraad de Koning, Peter Wurz, David Wacey, Anna Neubeck, Andreas Riedo, Niels F. W. Ligterink, Marek Tulej, Valentine Grimaudo, Rustam Lukmanov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fa0d47aadfd52a26d9467a96cb6b377
https://doi.org/10.1002/cem.3370/v2/response1
https://doi.org/10.1002/cem.3370/v2/response1
