Zobrazeno 1 - 10
of 83
pro vyhledávání: '"John N Christensen"'
Autor:
Nathaniel J Dominy, Salima Ikram, Gillian L Moritz, Patrick V Wheatley, John N Christensen, Jonathan W Chipman, Paul L Koch
Publikováno v:
eLife, Vol 9 (2020)
The Red Sea was witness to important events during human history, including the first long steps in a trade network (the spice route) that would drive maritime technology and shape geopolitical fortunes for thousands of years. Punt was a pivotal earl
Externí odkaz:
https://doaj.org/article/f5f6262640f047fb88caf6a8d03386d9
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
Publikováno v:
ACS Omega, Vol 4, Iss 5, Pp 9497-9501 (2019)
Externí odkaz:
https://doaj.org/article/6f0f5cee24984b5e8bfb4fa1c687bba0
Autor:
John N. Christensen, James M. Watkins, Laurent S. Devriendt, Donald J. DePaolo, Mark E. Conrad, Marco Voltolini, Wenbo Yang, Wenming Dong
Publikováno v:
Geochimica et Cosmochimica Acta. 343:416-419
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::590c8d6ead8dcb7979af1c6dffe51ac6
https://doi.org/10.1016/j.gca.2022.09.022
https://doi.org/10.1016/j.gca.2022.09.022
Publikováno v:
Isotopic Constraints on Earth System Processes. :27-42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bea890b5dcdd9811ca12c0b5b3fee889
https://doi.org/10.1002/9781119595007.ch2
https://doi.org/10.1002/9781119595007.ch2
Autor:
John N. Christensen, Michael A. Antonelli, Donald J. DePaolo, Olivier Bachmann, Jörn-Frederik Wotzlaw, Nicholas J. Pester
Publikováno v:
ACS Earth and Space Chemistry. 5:2481-2492
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3167976135fe295ba14cf9aa88d4c20e
https://doi.org/10.1021/acsearthspacechem.1c00179
https://doi.org/10.1021/acsearthspacechem.1c00179
Autor:
Zeeshan Parvez, Irvin W Matamoros, Joshua Rubi, Kevin Miguel, Ben Elliott, Randy Flores, Jamie K Lucarelli, Robert N Ulrich, Robert A Eagle, James M Watkins, John N Christensen, Aradhna Tripati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfefaa9114dfc2db5850a437f1fc366e
https://doi.org/10.1002/essoar.10511830.1
https://doi.org/10.1002/essoar.10511830.1
Autor:
Mark E. Conrad, Robert G. Hilton, Emily Burt, John N. Christensen, Mathieu Dellinger, A. Joshua West, Adan Julian Ccahuana Quispe, Markus Bill
Publikováno v:
Geology. 49:1064-1068
Mineral weathering plays a primary role in the geologic carbon cycle. Silicate weathering by carbonic acid consumes CO2 and stabilizes Earth's climate system. However, when sulfuric acid drives weathering, CO2 can be released to the atmosphere. Recen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806f85bdbbf1d54470e9c3a52278f138
https://doi.org/10.1130/g48997.1
https://doi.org/10.1130/g48997.1
Autor:
Donald J. DePaolo, James M. Watkins, Wenbo Yang, Mark E. Conrad, Laurent S. Devriendt, John N. Christensen, Marco Voltolini, Wenming Dong
Publikováno v:
Geochimica et Cosmochimica Acta. 301:91-115
The Cedars ultramafic block hosts alkaline springs (pH > 11) in which calcium carbonate forms upon uptake of atmospheric CO2 and at times via mixing with surface water. These processes lead to distinct carbonate morphologies with “floes” forming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293fabc295d5e0d1561481905ccaf61a
https://doi.org/10.1016/j.gca.2021.01.003
https://doi.org/10.1016/j.gca.2021.01.003
Autor:
Patricia M. Fox, Sergio Carrero, Cam Anderson, Christian Dewey, Marco Keiluweit, Mark Conrad, Hannah R. Naughton, Scott Fendorf, Rosemary Carroll, Baptiste Dafflon, Helen Malenda‐Lawrence, Dipankar Dwivedi, Benjamin Gilbert, John N. Christensen, Kristin Boye, Curtis Beutler, Wendy Brown, Alexander Newman, Roelof Versteeg, Kenneth H. Williams, Peter S. Nico
Publikováno v:
Journal of Geophysical Research Biogeosciences, vol 127, iss 6
Sulfur (S) is an essential macronutrient and important component of the earth’s crust, and its cycling has critical impacts on trace metal mobility, water quality, and human health. Pyrite weathering is the primary pathway by which sulfur enters su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d55c48b78440efb0f8f728192f9182b
https://doi.org/10.1029/2021jg006769
https://doi.org/10.1029/2021jg006769