Matches in SemOpenAlex for { <https://semopenalex.org/work/W3038526054> ?p ?o ?g. }
- W3038526054 endingPage "105722" @default.
- W3038526054 startingPage "105722" @default.
- W3038526054 abstract "Recent studies suggest that the massive Precambrian dolomite successions were likely the products of specific seawater conditions known as “dolomite seas”. However, whether these so-called “dolomite seas” existed in the terminal Ediacaran ocean has not yet been constrained. The widespread botryoidal dolomite with well-preserved sedimentary fabrics from the Upper Ediacaran Dengying Formation (ca. 551 to 545 Ma), South China can be potentially an ideal target to constrain this issue. Results showed that within the botryoidal dolomite, fibrous dolomite cements are the dominant constituent part, and either grew upward from microbialite layers or occurred in sheet cracks within the microbialites, implying a syn-sedimentary diagenesis. Two different types of fibrous cements are newly redefined: fascicular and radial slow dolomite. Well-preserved chemical and cathodoluminescent zonations and length-slow optical characters are direct evidence for syn-sedimentary primary dolomite precipitation, different with the previous alternative interpretations of mimetic dolomitization of aragonite or high-Mg calcite precursors. In contrast, microbialite matrix consists of finely crystalline dolomicrite and preserved microbial fabrics, reveling an early mimetic dolomitization of aragonitic precursors. The dolomite precipitation and mimetic dolomitization likely occurred in coeval seawater or seawater-type fluids as indicated by comparable δ13C and 87Sr/86Sr data with global changes. In particular, the presence of primary dolomite cement precipitates within botryoidal dolomite can reflect that the specific “dolomite seas”, associated with anoxic or even euxinic shallow water conditions (inferred by redox-sensitive trace elements and REEs) and increased microbial activity, also prevailed in the terminal Ediacaran ocean. However, the occurrence of “dolomite seas” was not one occasional event, but common even if not persistent in the early to terminal Neoproterozoic oceans. This study helps to improve the understanding of “dolomite problem” and ubiquitous distribution of Precambrian dolomite worldwide." @default.
- W3038526054 created "2020-07-10" @default.
- W3038526054 creator A5006182496 @default.
- W3038526054 creator A5019037411 @default.
- W3038526054 creator A5042192229 @default.
- W3038526054 creator A5068784142 @default.
- W3038526054 creator A5070218233 @default.
- W3038526054 creator A5084881572 @default.
- W3038526054 creator A5085670380 @default.
- W3038526054 date "2020-08-01" @default.
- W3038526054 modified "2023-10-14" @default.
- W3038526054 title "Petrological and geochemical characteristics of the botryoidal dolomite of Dengying Formation in the Yangtze Craton, South China: Constraints on terminal Ediacaran “dolomite seas”" @default.
- W3038526054 cites W1536058474 @default.
- W3038526054 cites W1600303718 @default.
- W3038526054 cites W1972822342 @default.
- W3038526054 cites W1972857233 @default.
- W3038526054 cites W1974648701 @default.
- W3038526054 cites W1978771007 @default.
- W3038526054 cites W1982560803 @default.
- W3038526054 cites W1983191214 @default.
- W3038526054 cites W1983244910 @default.
- W3038526054 cites W1986874741 @default.
- W3038526054 cites W1988680430 @default.
- W3038526054 cites W1991952401 @default.
- W3038526054 cites W1994930702 @default.
- W3038526054 cites W1999348580 @default.
- W3038526054 cites W2001490382 @default.
- W3038526054 cites W2008149897 @default.
- W3038526054 cites W2011968190 @default.
- W3038526054 cites W2016379558 @default.
- W3038526054 cites W2017851468 @default.
- W3038526054 cites W2020434687 @default.
- W3038526054 cites W2020610733 @default.
- W3038526054 cites W2022068844 @default.
- W3038526054 cites W2026191004 @default.
- W3038526054 cites W2027228820 @default.
- W3038526054 cites W2034084861 @default.
- W3038526054 cites W2038700295 @default.
- W3038526054 cites W2052581430 @default.
- W3038526054 cites W2054524404 @default.
- W3038526054 cites W2057482300 @default.
- W3038526054 cites W2058745160 @default.
- W3038526054 cites W2060891287 @default.
- W3038526054 cites W2062120279 @default.
- W3038526054 cites W2062943076 @default.
- W3038526054 cites W2065591712 @default.
- W3038526054 cites W2066115290 @default.
- W3038526054 cites W2066710100 @default.
- W3038526054 cites W2067523595 @default.
- W3038526054 cites W2071091649 @default.
- W3038526054 cites W2075151349 @default.
- W3038526054 cites W2076965374 @default.
- W3038526054 cites W2078051663 @default.
- W3038526054 cites W2080104972 @default.
- W3038526054 cites W2087714756 @default.
- W3038526054 cites W2088507679 @default.
- W3038526054 cites W2089038963 @default.
- W3038526054 cites W2097941685 @default.
- W3038526054 cites W2098800351 @default.
- W3038526054 cites W2100634462 @default.
- W3038526054 cites W2101858137 @default.
- W3038526054 cites W2102947943 @default.
- W3038526054 cites W2107438046 @default.
- W3038526054 cites W2114106775 @default.
- W3038526054 cites W2118497769 @default.
- W3038526054 cites W2120124860 @default.
- W3038526054 cites W2127896586 @default.
- W3038526054 cites W2141520425 @default.
- W3038526054 cites W2164322328 @default.
- W3038526054 cites W2164396249 @default.
- W3038526054 cites W2345213496 @default.
- W3038526054 cites W2400863242 @default.
- W3038526054 cites W2516135796 @default.
- W3038526054 cites W2519082713 @default.
- W3038526054 cites W2548907496 @default.
- W3038526054 cites W2554524248 @default.
- W3038526054 cites W2561765013 @default.
- W3038526054 cites W2770512651 @default.
- W3038526054 cites W2791882694 @default.
- W3038526054 cites W2792899231 @default.
- W3038526054 cites W2793986365 @default.
- W3038526054 cites W2804823527 @default.
- W3038526054 cites W2809225447 @default.
- W3038526054 cites W2884088998 @default.
- W3038526054 cites W2898818584 @default.
- W3038526054 cites W2899605229 @default.
- W3038526054 cites W2924184345 @default.
- W3038526054 cites W2930543464 @default.
- W3038526054 cites W2949794370 @default.
- W3038526054 cites W2964433498 @default.
- W3038526054 cites W2984729598 @default.
- W3038526054 cites W2996851375 @default.
- W3038526054 cites W300313049 @default.
- W3038526054 cites W3009952254 @default.
- W3038526054 cites W3032974216 @default.
- W3038526054 doi "https://doi.org/10.1016/j.sedgeo.2020.105722" @default.
- W3038526054 hasPublicationYear "2020" @default.
- W3038526054 type Work @default.