Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Roland Stumpf"'
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:783-794
Improved methods are presented for the separation of platinum from iron meteorites and subsequent analyses of both mass-independent and mass-dependent Pt isotope compositions of iron meteorites by multiple collector ICP-MS. The procedures are optimis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5095dca8298099e8a740002a3dcf83a2
https://doi.org/10.1039/d1ja00468a
https://doi.org/10.1039/d1ja00468a
Uranium is a trace metal yielding an average concentration in the Earth’s crust of about 2 to 4 mg/kg, and it occurs naturally in low levels in rock, soil, and water. Although widely known for its radioactive properties, at low levels dissolved ura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afb3d7a17b7dec02aca4d55d17f8424d
https://doi.org/10.5194/egusphere-egu2020-21458
https://doi.org/10.5194/egusphere-egu2020-21458
Publikováno v:
Chemical Geology, 511 . pp. 265-278.
Dissolved neodymium (Nd) and its radiogenic isotope composition (143Nd/144Nd, expressed as eNd) belong to the key parameters of the international GEOTRACES program, which aims to investigate the processes controlling the distribution of trace element
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7f69a69be1f86d909f79837d92686f4
http://oceanrep.geomar.de/44867/
http://oceanrep.geomar.de/44867/
Publikováno v:
Quaternary Science Reviews. 112:197-206
Highlights: • First ITF reconstruction combining detrital and authigenic isotope signatures. • At the core site signatures of surface water cannot be separated from bottom water. • Intermediate to deep waters remain unchanged in western Timor S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8b7f4ca1d338f6830574361639294d4
https://doi.org/10.1016/j.quascirev.2015.01.029
https://doi.org/10.1016/j.quascirev.2015.01.029
Publikováno v:
Geochimica et Cosmochimica Acta. 123:166-180
The central Baltic Sea is a marginal brackish basin which comprises anoxic bottom waters and is surrounded by geological source terrains with a wide variety of compositions and ages. This allows the investigation of water mass mixing using radiogenic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa17ac511f571a760815f1ad3b78f061
https://doi.org/10.1016/j.gca.2013.09.011
https://doi.org/10.1016/j.gca.2013.09.011
Publikováno v:
Journal of Geophysical Research: Oceans. 118:3887-3894
Neodymium (Nd) isotopes are an important geochemical tool to trace the present and past water mass mixing as well as continental inputs. The distribution of Nd concentrations in open ocean surface waters (0–100 m) is generally assumed to be control
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d160881dc10fcff696c338729810d53d
https://doi.org/10.1002/jgrc.20288
https://doi.org/10.1002/jgrc.20288
Publikováno v:
Earth and Planetary Science Letters. :198-207
The radiogenic isotope composition of the Rare Earth Element (REE) neodymium (Nd) is a powerful water mass proxy for present and past ocean circulation. The processes controlling the Nd budget of the global ocean are not quantitatively understood and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59972cb12d0838ccd95830f754a05abc
https://doi.org/10.1016/j.epsl.2012.07.044
https://doi.org/10.1016/j.epsl.2012.07.044
Publikováno v:
Earth and Planetary Science Letters. 312:80-90
The assemblages of marine sediments on the SW Iberian shelf have been controlled by contributions from distinct sources, which have varied in response to environmental changes since the Last Glacial Maximum (LGM). The rapid, decadal scale Mediterrane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68e7de71750251c75559d194309adc33
https://doi.org/10.1016/j.epsl.2011.10.002
https://doi.org/10.1016/j.epsl.2011.10.002
Publikováno v:
Quaternary Science Reviews. 29:2462-2472
Mediterranean Outflow Water (MOW) is characterised by higher temperatures and salinities than other ambient water masses. MOW spreads at water depths between 500 and 1500 m in the eastern North Atlantic and has been a source of salinity for the Atlan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8726f28d43e47080ff3794376e61ffd
https://doi.org/10.1016/j.quascirev.2010.06.021
https://doi.org/10.1016/j.quascirev.2010.06.021
Autor:
Michael Sarnthein, Roland Stumpf, Nils Andersen, Brian A. Haley, Nabil Khélifi, Martin Frank, Dieter Garbe-Schönberg, Mara Weinelt, Thomas Blanz
Publikováno v:
Geology. 37:811-814
Largely continuous millennial-scale records of benthic delta O-18, Mg/Ca-based temperature, and salinity variations in bottom waters were obtained from Deep Sea Drilling Project (DSDP) Site 548 (East Atlantic continental margin near Ireland, 1250 m w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57e049df8b01b65b95e0b24412717189
https://doi.org/10.1130/g30058a.1
https://doi.org/10.1130/g30058a.1