FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2078893670> ?p ?o ?g. }

• W2078893670 endingPage "174" @default.
• W2078893670 startingPage "158" @default.
• W2078893670 abstract "Primary carbon isotope trends in marine carbonate rocks are particularly useful for chemostratigraphic correlation and paleoenvironmental reconstruction of the Neoproterozoic Earth System. Differences, however, exist between the published carbonate C-isotope profiles from the Neoproterozoic Yangtze platform and the global C-isotope record through the equivalent time interval. More C-isotope profiles are required for the Yangtze platform from where excellently preserved early animal fossils have been discovered. We studied C, O and Sr isotope compositions and Mn–Sr concentrations of two successions of the Neoproterozoic Doushantuo and Dengying Formations in Guizhou and Zhejiang Provinces, South China. Most of the 87Sr/86Sr ratios lie above 0.709, higher than the contemporaneous seawater values, and are likely to represent diagenetic alteration and possible leaching of clay detritus. The δ18O profiles exhibit more fluctuation than the δ13C profiles, indicating that oxygen isotopes are more sensitive to diagenetic effects. Both δ13C profiles in Zhejiang and Guizhou show negative excursions to − 3 to − 4‰ in the Doushantuo cap carbonate overlying the Nantuo (Marinoan) diamictite and at the Doushantuo–Dengying boundary, and positive shifts to + 3 to + 4‰ through the rest of the Doushantuo and Dengying Formations. We suggest that oceanic overturn was responsible for both the negative δ13C excursion within the Doushantuo cap carbonate and that at the Doushantuo–Dengying boundary. However, the mechanisms for the two overturn events are different. The former overturn occurred under conditions of high temperature and high evaporation rates after thawing of the Nantuo (end-Cryogenian) Snowball Earth that had resulted in the stagnant and stratified ocean under sea ice. The Doushantuo interval witnessed sustained high bioproductivity, elevated rates of organic matter accumulation in deep water and sediment, and progressive δ13C stratification in the ocean, CO2 drawdown to sediments and thus cooling, which led eventually to high latitudinal glaciation, vigorous thermohaline circulation and oceanic overturn at the end of the Doushantuo period. This latter overturn released CO2 back to the atmosphere, thus raising the temperature and preventing further cooling. High productivity revived subsequently during the Dengying interval. More work will be needed to further constrain and interpret C-isotope evolution across the Precambrian–Cambrian boundary on the Yangtze platform." @default.
• W2078893670 created "2016-06-24" @default.
• W2078893670 creator A5043434829 @default.
• W2078893670 creator A5052899160 @default.
• W2078893670 creator A5067867277 @default.
• W2078893670 creator A5069388540 @default.
• W2078893670 creator A5070632576 @default.
• W2078893670 creator A5082919794 @default.
• W2078893670 date "2007-10-01" @default.
• W2078893670 modified "2023-10-14" @default.
• W2078893670 title "Carbon isotope variation through the Neoproterozoic Doushantuo and Dengying Formations, South China: Implications for chemostratigraphy and paleoenvironmental change" @default.
• W2078893670 cites W1682777677 @default.
• W2078893670 cites W1960006776 @default.
• W2078893670 cites W1966270815 @default.
• W2078893670 cites W1972538938 @default.
• W2078893670 cites W1972548568 @default.
• W2078893670 cites W1972857233 @default.
• W2078893670 cites W1974021678 @default.
• W2078893670 cites W1983193013 @default.
• W2078893670 cites W1985083804 @default.
• W2078893670 cites W1986697686 @default.
• W2078893670 cites W1988006132 @default.
• W2078893670 cites W1988966899 @default.
• W2078893670 cites W1990783861 @default.
• W2078893670 cites W1991800138 @default.
• W2078893670 cites W1991959751 @default.
• W2078893670 cites W1996366507 @default.
• W2078893670 cites W1997283506 @default.
• W2078893670 cites W2000342288 @default.
• W2078893670 cites W2004614425 @default.
• W2078893670 cites W2007766082 @default.
• W2078893670 cites W2008281306 @default.
• W2078893670 cites W2010203202 @default.
• W2078893670 cites W2012263752 @default.
• W2078893670 cites W2013355842 @default.
• W2078893670 cites W2013490303 @default.
• W2078893670 cites W2020610733 @default.
• W2078893670 cites W2022530129 @default.
• W2078893670 cites W2026608718 @default.
• W2078893670 cites W2031831701 @default.
• W2078893670 cites W2038214656 @default.
• W2078893670 cites W2040269188 @default.
• W2078893670 cites W2041286603 @default.
• W2078893670 cites W2042526900 @default.
• W2078893670 cites W2047349403 @default.
• W2078893670 cites W2052732987 @default.
• W2078893670 cites W2057935824 @default.
• W2078893670 cites W2063622858 @default.
• W2078893670 cites W2070822025 @default.
• W2078893670 cites W2079030090 @default.
• W2078893670 cites W2083295324 @default.
• W2078893670 cites W2085293644 @default.
• W2078893670 cites W2085968620 @default.
• W2078893670 cites W2086137649 @default.
• W2078893670 cites W2087714756 @default.
• W2078893670 cites W2091973082 @default.
• W2078893670 cites W2094953080 @default.
• W2078893670 cites W2100634462 @default.
• W2078893670 cites W2102516422 @default.
• W2078893670 cites W2102918136 @default.
• W2078893670 cites W2104400158 @default.
• W2078893670 cites W2109912937 @default.
• W2078893670 cites W2133194253 @default.
• W2078893670 cites W2139765573 @default.
• W2078893670 cites W2142409030 @default.
• W2078893670 cites W2142617533 @default.
• W2078893670 cites W2146761970 @default.
• W2078893670 cites W2149409854 @default.
• W2078893670 cites W2160512552 @default.
• W2078893670 cites W2162207442 @default.
• W2078893670 cites W2167166970 @default.
• W2078893670 cites W2167256788 @default.
• W2078893670 cites W2171692058 @default.
• W2078893670 doi "https://doi.org/10.1016/j.palaeo.2007.03.023" @default.
• W2078893670 hasPublicationYear "2007" @default.
• W2078893670 type Work @default.
• W2078893670 sameAs 2078893670 @default.
• W2078893670 citedByCount "29" @default.
• W2078893670 countsByYear W20788936702012 @default.
• W2078893670 countsByYear W20788936702013 @default.
• W2078893670 countsByYear W20788936702014 @default.
• W2078893670 countsByYear W20788936702015 @default.
• W2078893670 countsByYear W20788936702016 @default.
• W2078893670 countsByYear W20788936702017 @default.
• W2078893670 countsByYear W20788936702019 @default.
• W2078893670 countsByYear W20788936702020 @default.
• W2078893670 countsByYear W20788936702021 @default.
• W2078893670 countsByYear W20788936702022 @default.
• W2078893670 countsByYear W20788936702023 @default.
• W2078893670 crossrefType "journal-article" @default.
• W2078893670 hasAuthorship W2078893670A5043434829 @default.
• W2078893670 hasAuthorship W2078893670A5052899160 @default.
• W2078893670 hasAuthorship W2078893670A5067867277 @default.
• W2078893670 hasAuthorship W2078893670A5069388540 @default.
• W2078893670 hasAuthorship W2078893670A5070632576 @default.
• W2078893670 hasAuthorship W2078893670A5082919794 @default.
• W2078893670 hasConcept C107872376 @default.
• W2078893670 hasConcept C127313418 @default.

• next