Sökning: onr:"swepub:oai:lup.lub.lu.se:cf9293e1-f327-410f-9fab-db4e78e0cacb" > Paleoenvironmental ...
Fältnamn | Indikatorer | Metadata |
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000 | 04548naa a2200481 4500 | |
001 | oai:lup.lub.lu.se:cf9293e1-f327-410f-9fab-db4e78e0cacb | |
003 | SwePub | |
008 | 190318s2019 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/cf9293e1-f327-410f-9fab-db4e78e0cacb2 URI |
024 | 7 | a https://doi.org/10.1111/gbi.123372 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Zhang, Shuichangu China National Petroleum Corporation4 aut |
245 | 1 0 | a Paleoenvironmental proxies and what the Xiamaling Formation tells us about the mid-Proterozoic ocean |
264 | c 2019-03-06 | |
264 | 1 | b Wiley,c 2019 |
520 | a The Mesoproterozoic Era (1,600–1,000 million years ago, Ma) geochemical record is sparse, but, nevertheless, critical in untangling relationships between the evolution of eukaryotic ecosystems and the evolution of Earth-surface chemistry. The ca. 1,400 Ma Xiamaling Formation has experienced only very low-grade thermal maturity and has emerged as a promising geochemical archive informing on the interplay between climate, ecosystem organization, and the chemistry of the atmosphere and oceans. Indeed, the geochemical record of portions of the Xiamaling Formation has been used to place minimum constraints on concentrations of atmospheric oxygen as well as possible influences of climate and climate change on water chemistry and sedimentation dynamics. A recent study has argued, however, that some portions of the Xiamaling Formation deposited in a highly restricted environment with only limited value as a geochemical archive. In this contribution, we fully explore these arguments as well as the underlying assumptions surrounding the use of many proxies used for paleo-environmental reconstructions. In doing so, we pay particular attention to deep-water oxygen-minimum zone environments and show that these generate unique geochemical signals that have been underappreciated. These signals, however, are compatible with the geochemical record of those parts of the Xiamaling Formation interpreted as most restricted. Overall, we conclude that the Xiamaling Formation was most likely open to the global ocean throughout its depositional history. More broadly, we show that proper paleo-environmental reconstructions require an understanding of the biogeochemical signals generated in all relevant modern analogue depositional environments. We also evaluate new data on the δ 98 Mo of Xiamaling Formation shales, revealing possible unknown pathways of molybdenum sequestration into sediments and concluding, finally, that seawater at that time likely had a δ 98 Mo value of about 1.1‰. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng |
653 | a climate | |
653 | a evolution | |
653 | a Mesoproterozoic | |
653 | a molybdenum isotope | |
653 | a oxygen | |
653 | a oxygen minimum zone | |
653 | a proxy | |
700 | 1 | a Wang, Xiaomeiu China National Petroleum Corporation4 aut |
700 | 1 | a Wang, Huajianu China National Petroleum Corporation4 aut |
700 | 1 | a Bjerrum, Christian J.u University of Copenhagen4 aut |
700 | 1 | a Hammarlund, Emma U.u Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,University of Southern Denmark4 aut0 (Swepub:lu)med-ehd |
700 | 1 | a Haxen, Emma R.u University of Copenhagen4 aut |
700 | 1 | a Wen, Hanjieu Institute of Geochemistry, Chinese Academy of Sciences4 aut |
700 | 1 | a Ye, Yuntaou China National Petroleum Corporation4 aut |
700 | 1 | a Canfield, Donald E.u University of Southern Denmark,China National Petroleum Corporation4 aut |
710 | 2 | a China National Petroleum Corporationb University of Copenhagen4 org |
773 | 0 | t Geobiologyd : Wileyg 17:3, s. 225-246q 17:3<225-246x 1472-4677x 1472-4669 |
856 | 4 | u http://dx.doi.org/10.1111/gbi.12337y FULLTEXT |
856 | 4 | u https://curis.ku.dk/ws/files/248659409/Paleoenvironmental_proxies_and_what_the_Xiamaling_Formation_tells_us_about_the_mid_Proterozoic_ocean.pdf |
856 | 4 8 | u https://lup.lub.lu.se/record/cf9293e1-f327-410f-9fab-db4e78e0cacb |
856 | 4 8 | u https://doi.org/10.1111/gbi.12337 |
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