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作者:Wolfgang Dreybrodt
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.533
摘要:Abstract(#br)In this comment it is shown that analysis of the fractionation constants of the DIC describing the enrichment of 13 C and 18 O along the flow path of a thin water layer flowing down an inclined marble plate precipitating calcite in analogy to precipitation to sp...
作者:Marta Sośnicka , Volker Lüders
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.534
摘要:Abstract(#br)Upper Permian Zechstein carbonate Ca2 gas reservoirs in the southern part of the Pompeckj Block in the North German Basin locally contain up to 36 vol% hydrogen sulfide (H 2 S) produced by thermochemical sulfate reduction (TSR). TSR was triggered by migration of...
作者:Sandra Gdaniec , Matthieu Roy-Barman , Martin Levier ...
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.532
摘要:Abstract(#br)231 Pa, 230 Th and 232 Th were analyzed in filtered seawater ( n = 70) and suspended particles ( n = 39) collected along a shelf-basin transect from the Barents shelf to the Makarov Basin in the Arctic Ocean during GEOTRACES section GN04 in 2015. The distribution of ...
作者:Laura Newsome , Agustín Solano Arguedas , Victoria S. Coker ...
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.531
摘要:Abstract(#br)Cobalt is essential for the modern technology that underpins the decarbonisation of our economies, but its supply is limited leading to its designation as a critical metal. Cobalt biogeochemistry is poorly understood, yet knowledge of how biogeochemical cycling ...
作者:Manolis Giampouras , Carlos J. Garrido , Wolfgang Bach ...
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.533
摘要:Abstract(#br)Interactions between meteoric water and ultramafic rocks in the Oman Ophiolite generate waters of variable physicochemical characteristics. The discharge of these waters forms complex alkaline pool networks, in which mineral precipitation is triggered by mixing,...
作者:Eoghan P. Corbett , Antonio Simonetti , Phil Shaw ...
来源:[J].Chemical Geology(IF 3.154), 2020
摘要:Abstract(#br)The interaction of incident laser radiation and sample substrate is complex and difficult to predict. Natural zircons are often both structurally and chemically heterogeneous in 3-dimensional space. Encountering growth-related, structural micro-heterogeneities, ...
作者:Sebastien N. Kerisit , Micah P. Prange
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.534
摘要:Abstract(#br)Trivalent rare-earth elements (REEs) readily incorporate in Ca-bearing minerals such as calcite (CaCO 3 ), a phenomenon with important implications for the use of REEs as biogeochemical tracers as well as for environmental remediation. Despite substantial efforts, de...
作者:René Neuholz , Bernhard Schnetger , Charlotte Kleint ...
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.533
摘要:Abstract(#br)The naturally occurring radium (Ra) isotope quartet was measured for the first time at an intraoceanic arc hydrothermal setting along the Kermadec Island Arc (SW Pacific). 224 Ra (3.7 d half life) and 223 Ra (11.4 d half life) are assumed to be tracers solely origina...
作者:Danny Hnatyshin , Robert A. Creaser , Sebastien Meffre ...
来源:[J].Chemical Geology(IF 3.154), 2020, Vol.533
摘要:Abstract(#br)Accurate and precise geochronology using the Re-Os isotopic system in pyrite is an invaluable tool for developing and confirming genetic models of ore systems. However, as a bulk method, the results produced by pyrite Re-Os geochronology are commonly complex, an...

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