FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2988604530> ?p ?o ?g. }

• W2988604530 endingPage "105718" @default.
• W2988604530 startingPage "105718" @default.
• W2988604530 abstract "Fundamental questions persist regarding the redox structure and trace metal content of the Mesoproterozoic oceans. Multiple lines of evidence suggest more widespread anoxia in the deep oceans compared to today, and iron speciation indicates that anoxia was largely accompanied by dissolved ferrous iron (ferruginous conditions) rather than free sulfide (euxinia). Still, exceptions exist—euxinic conditions have been reported from some ocean margin and epeiric sea settings, and oxic conditions were reported in one deeper water environment and are also known from shallow waters. Constraining the temporal evolution of Mesoproterozoic marine redox structure is critical because it likely governed redox-sensitive trace metal availability, which in turn played a significant role in marine diazotrophy and the evolution of early eukaryotes. Here, we present a new, multi-proxy geochemical dataset from the ~1.2 Ga Bijaygarh Shale (Kaimur Group, Vindhyan Basin, India) emphasizing total organic carbon, iron speciation, and trace metal concentrations, as well as sulfur, nitrogen, and molybdenum isotopes. This unit was deposited in an open shelf setting near or just below storm wave base. Taken together, our data provide a unique snapshot of a biologically important shallow shelf setting during the Mesoproterozoic Era, which includes: 1) locally ferruginous waters below the zone of wave mixing, 2) muted enrichment of trace metals sensitive to general anoxia (e.g., chromium) and variable enrichment of trace metals sensitive to euxinia (e.g., molybdenum and, to a lesser extent, vanadium), 3) general sulfate limitation, and 4) nitrogen fixation by molybdenum-nitrogenase and a dominantly anaerobic nitrogen cycle in offshore settings. Differential patterns of trace metal enrichment are consistent with data from other basins and suggest a largely anoxic ocean with limited euxinia during the Mesoproterozoic Era. Our new molybdenum isotope data—the first such data from unambiguously marine shales deposited between 1.4 and 0.75 Ga—record values up to +1.18 ± 0.12‰ that are analogous to data from other Mesoproterozoic shale units. Ultimately, this study provides a broad, multi-proxy perspective on the redox conditions that accompanied early eukaryotic evolution." @default.
• W2988604530 created "2019-11-22" @default.
• W2988604530 creator A5029754285 @default.
• W2988604530 creator A5031095238 @default.
• W2988604530 creator A5039534526 @default.
• W2988604530 creator A5044803971 @default.
• W2988604530 creator A5046143472 @default.
• W2988604530 creator A5055743627 @default.
• W2988604530 creator A5060024339 @default.
• W2988604530 date "2020-07-01" @default.
• W2988604530 modified "2023-09-25" @default.
• W2988604530 title "Molybdenum isotope and trace metal signals in an iron-rich Mesoproterozoic ocean: A snapshot from the Vindhyan Basin, India" @default.
• W2988604530 cites W1560828235 @default.
• W2988604530 cites W1642387437 @default.
• W2988604530 cites W1678971666 @default.
• W2988604530 cites W1832379973 @default.
• W2988604530 cites W1963492085 @default.
• W2988604530 cites W1964598401 @default.
• W2988604530 cites W1969060008 @default.
• W2988604530 cites W1974045653 @default.
• W2988604530 cites W1977887513 @default.
• W2988604530 cites W1980523565 @default.
• W2988604530 cites W1982404483 @default.
• W2988604530 cites W1986533595 @default.
• W2988604530 cites W1986569651 @default.
• W2988604530 cites W1986594438 @default.
• W2988604530 cites W1988000897 @default.
• W2988604530 cites W1988521845 @default.
• W2988604530 cites W1990648220 @default.
• W2988604530 cites W1993543308 @default.
• W2988604530 cites W1993995809 @default.
• W2988604530 cites W1994105023 @default.
• W2988604530 cites W2001867164 @default.
• W2988604530 cites W2006895540 @default.
• W2988604530 cites W2007701111 @default.
• W2988604530 cites W2021590228 @default.
• W2988604530 cites W2024690990 @default.
• W2988604530 cites W2027678678 @default.
• W2988604530 cites W2034320900 @default.
• W2988604530 cites W2039553231 @default.
• W2988604530 cites W2040594003 @default.
• W2988604530 cites W2041762395 @default.
• W2988604530 cites W2042505381 @default.
• W2988604530 cites W2042883196 @default.
• W2988604530 cites W2045375224 @default.
• W2988604530 cites W2046715947 @default.
• W2988604530 cites W2049655031 @default.
• W2988604530 cites W2053509704 @default.
• W2988604530 cites W2054380694 @default.
• W2988604530 cites W2057100418 @default.
• W2988604530 cites W2058786960 @default.
• W2988604530 cites W2059530396 @default.
• W2988604530 cites W2062900030 @default.
• W2988604530 cites W2068263661 @default.
• W2988604530 cites W2071388181 @default.
• W2988604530 cites W2071550843 @default.
• W2988604530 cites W2072090936 @default.
• W2988604530 cites W2075733918 @default.
• W2988604530 cites W2077725001 @default.
• W2988604530 cites W2079195995 @default.
• W2988604530 cites W2079758306 @default.
• W2988604530 cites W2080159193 @default.
• W2988604530 cites W2083645617 @default.
• W2988604530 cites W2087272845 @default.
• W2988604530 cites W2087547487 @default.
• W2988604530 cites W2093561592 @default.
• W2988604530 cites W2095567465 @default.
• W2988604530 cites W2097417202 @default.
• W2988604530 cites W2110407146 @default.
• W2988604530 cites W2110763949 @default.
• W2988604530 cites W2114106775 @default.
• W2988604530 cites W2119610316 @default.
• W2988604530 cites W2120708524 @default.
• W2988604530 cites W2128595563 @default.
• W2988604530 cites W2133155454 @default.
• W2988604530 cites W2143242500 @default.
• W2988604530 cites W2144181206 @default.
• W2988604530 cites W2148177503 @default.
• W2988604530 cites W2148911019 @default.
• W2988604530 cites W2151687448 @default.
• W2988604530 cites W2153587034 @default.
• W2988604530 cites W2156107051 @default.
• W2988604530 cites W2161582133 @default.
• W2988604530 cites W2162344545 @default.
• W2988604530 cites W2166679308 @default.
• W2988604530 cites W2170979071 @default.
• W2988604530 cites W2334477362 @default.
• W2988604530 cites W2402234408 @default.
• W2988604530 cites W2417936857 @default.
• W2988604530 cites W2465091553 @default.
• W2988604530 cites W2468992164 @default.
• W2988604530 cites W2492459478 @default.
• W2988604530 cites W2555293007 @default.
• W2988604530 cites W2560591723 @default.
• W2988604530 cites W2560972103 @default.
• W2988604530 cites W2581834115 @default.
• W2988604530 cites W2582600675 @default.
• W2988604530 cites W2585246730 @default.

• next