Zobrazeno 1 - 10
of 2 988
pro vyhledávání: '"M W Roberts"'
Autor:
Oliver Lehnert, Bjarne Almqvist, Mark Anderson, Jenny Andersson, Simon Cuthbert, Mikael Calner, Isabel Carter, Riccardo Callegari, Christopher Juhlin, Henning Lorenz, Claudio Madonna, Guido Meinhold, Luca Menegon, Iwona Klonowska, Christophe Pascal, Markus Rast, Nick M. W. Roberts, Jonas B. Ruh, Grzegorz Ziemniak
Publikováno v:
Estonian Journal of Earth Sciences, Vol 73, Iss 2, Pp 134-140 (2024)
The Collisional Orogeny in the Scandinavian Caledonides (COSC) project focuses on processes related to the closure of the Iapetus Ocean, causing the OrdovicianâSilurian continentâcontinent collision between Baltica and Laurentia. The rock successio
Externí odkaz:
https://doaj.org/article/881da2a184fc4364becd14b062055e4b
Autor:
Cole A. McCormick, Hilary Corlett, Nick M. W. Roberts, Paul A. Johnston, Christopher J. Collom, Jack Stacey, Ardiansyah Koeshidayatullah, Cathy Hollis
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-13 (2024)
Abstract Fault-controlled, hydrothermal dolomitization often occurs at margins between shallow-water carbonate platforms and deep-water sedimentary basins. In western Canada, for example, the platform margin between the Cathedral Formation and the Bu
Externí odkaz:
https://doaj.org/article/abb21ec692c34605b692b28923ee1c4d
Autor:
H. Drake, W. R. M. Makahnouk, N. M. W. Roberts, M. Reinhardt, E. Henkemans, S. K. Frape, E.‐L. Tullborg, C. Broman, M. J. Whitehouse, E. Kooijman
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 9, Pp n/a-n/a (2024)
Abstract Deep fracture‐hosted fluids of Precambrian bedrock cratons are relatively stagnant over long time spans compared to near‐surface systems. However, episodic events, such as fracture reactivations, transgressions, and deglaciations, may in
Externí odkaz:
https://doaj.org/article/cba7687b716b479ba6da09fc070941a1
Publikováno v:
Scientific Data, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract High-quality global isotopic databases provide Earth scientists with robust means for developing and testing a variety of geological hypotheses. Database design establishes the range of questions that can be addressed, and validation techniq
Externí odkaz:
https://doaj.org/article/1e344719bbb443dc811ed62b9117636c
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 8, Pp n/a-n/a (2024)
Abstract The increase in initial Hf isotopes identified in early Mesoarchean detrital zircon is commonly interpreted as a reflection of the geodynamic transition from stagnant‐lid to mobile‐lid tectonics. However, given the lack of petrogenetic c
Externí odkaz:
https://doaj.org/article/89dc285580304eb5bea29df4a26d19f6
Autor:
Ivan N. Pidchenko, John N. Christensen, Martin Kutzschbach, Konstantin Ignatyev, Ignasi Puigdomenech, Eva-Lena Tullborg, Nick M. W. Roberts, E. Troy Rasbury, Paul Northrup, Ryan Tappero, Kristina O. Kvashnina, Thorsten Schäfer, Yohey Suzuki, Henrik Drake
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-11 (2023)
Abstract Uptake of uranium (U) by secondary minerals, such as carbonates and iron (Fe)-sulfides, that occur ubiquitously on Earth, may be substantial in deep anoxic environments compared to surficial settings due to different environment-specific con
Externí odkaz:
https://doaj.org/article/e8632433ad21422f94c4e338528e6e7a
Autor:
P. Nuriel, J.-F. Wotzlaw, M. Ovtcharova, A. Vaks, C. Stremtan, M. Šala, N. M. W. Roberts, A. R. C. Kylander-Clark
Publikováno v:
Geochronology, Vol 3, Pp 35-47 (2021)
Latest advances in laser ablation inductively coupled plasma mass spectrometer (LA-ICPMS) allow for accurate in situ U−Pb dating of carbonate material, with final age uncertainties usually >3 % 2σ. Cross-laboratory reference materials (RMs) used f
Externí odkaz:
https://doaj.org/article/97baf14ed26a4039be4f6cd827e28c69
Publikováno v:
Solid Earth, Vol 11, Pp 1931-1945 (2020)
We present new field observations from Selwicks Bay, NE England, an exposure of the Flamborough Head Fault Zone (FHFZ). We combine these with U–Pb geochronology of syn- to post-tectonic calcite mineralisation to provide absolute constraints on the
Externí odkaz:
https://doaj.org/article/3cb277e611944b6ab34c5f5b427bfe35
Autor:
Henrik Drake, Nick M. W. Roberts, Christine Heim, Martin J. Whitehouse, Sandra Siljeström, Ellen Kooijman, Curt Broman, Magnus Ivarsson, Mats E. Åström
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-14 (2019)
Fractured rocks of impact craters have been suggested to be suitable hosts for deep microbial communities on Earth, and potentially other terrestrial planets, yet direct evidence remains elusive. Here, the authors show that the Siljan impact structur
Externí odkaz:
https://doaj.org/article/add11050039641bc8324898a4059bd55
Autor:
Shuntaro Amano, Massimiliano Esposito, Elisabeth Kreidt, David A. Leigh, Emanuele Penocchio, Benjamin M. W. Roberts
Publikováno v:
Journal of the American Chemical Society
Amano, S, Esposito, M, Kreidt, E, Leigh, D A, Penocchio, E & Roberts, B M W 2022, ' Using Catalysis to Drive Chemistry Away from Equilibrium: Relating Kinetic Asymmetry, Power Strokes, and the Curtin–Hammett Principle in Brownian Ratchets ', Journal of the American Chemical Society . https://doi.org/10.1021/jacs.2c08723
Amano, S, Esposito, M, Kreidt, E, Leigh, D A, Penocchio, E & Roberts, B M W 2022, ' Using Catalysis to Drive Chemistry Away from Equilibrium: Relating Kinetic Asymmetry, Power Strokes, and the Curtin–Hammett Principle in Brownian Ratchets ', Journal of the American Chemical Society . https://doi.org/10.1021/jacs.2c08723
Chemically fueled autonomous molecular machines are catalysis-driven systems governed by Brownian information ratchet mechanisms. One fundamental principle behind their operation is kinetic asymmetry, which quantifies the directionality of molecular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88ccefb1eccda50afc748af87702ef53
https://doi.org/10.1021/jacs.2c08723
https://doi.org/10.1021/jacs.2c08723