Early Neoproterozoic oxygenation dynamics along the northern margin of the West African Craton, Anti-Atlas Mountains, Morocco
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2021.120404
Abstract: Abstract Emerging evidence suggests widespread ferruginous marine conditions promoted global seawater phosphate depletion and the maintenance of a low oxygen world at the start of the Neoproterozoic Era. However, the large-scale deposition of marine sedimentary… read more here.
Keywords: marine; along northern; early neoproterozoic; neoproterozoic ... See more keywords
A benthic oxygen oasis in the early Neoproterozoic ocean
Sign Up to like & getrecommendations! Published in 2021 at "Precambrian Research"
DOI: 10.1016/j.precamres.2020.106085
Abstract: Abstract Benthic oxygen oases linked to photosynthetic mats have been reported in modern anoxic aquatic systems. Benthic macroalgal blooms were common in stratified, anoxic Neoproterozoic oceans, leading us to hypothesize the existence of benthic oxygen… read more here.
Keywords: benthic oxygen; early neoproterozoic; oxygen oases; oxygen oasis ... See more keywords
Early Neoproterozoic continuous oceanic subduction along the northern margin of the Tarim Block: Insights from ca. 910–870 Ma arc-related magmatism in the Aksu area, NW China
Sign Up to like & getrecommendations! Published in 2021 at "Precambrian Research"
DOI: 10.1016/j.precamres.2021.106236
Abstract: Abstract The Tarim Block in NW China records the tectonic transition from compression to extension during the Neoproterozoic, and hence is regarded as a component of the Rodinia supercontinent. To unravel the role of the… read more here.
Keywords: subduction; aksu area; early neoproterozoic; tarim block ... See more keywords
Phosphorus-limited conditions in the early Neoproterozoic ocean maintained low levels of atmospheric oxygen
Sign Up to like & getrecommendations! Published in 2020 at "Nature Geoscience"
DOI: 10.1038/s41561-020-0548-7
Abstract: The redox chemistry of anoxic continental margin settings evolved from widespread sulfide-containing (euxinic) conditions to a global ferruginous (iron-containing) state in the early Neoproterozoic era (from ~1 to 0.8 billion years ago). Ocean redox chemistry… read more here.
Keywords: ocean; atmospheric oxygen; limited conditions; chemistry ... See more keywords
Nitrate limitation in early Neoproterozoic oceans delayed the ecological rise of eukaryotes
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.ade9647
Abstract: The early Neoproterozoic Era witnessed the initial ecological rise of eukaryotes at ca. 800 Ma. To assess whether nitrate availability played an important role in this evolutionary event, we measured nitrogen isotope compositions (δ15N) of… read more here.
Keywords: ecological rise; nitrate limitation; rise eukaryotes; early neoproterozoic ... See more keywords
Reappraising the Provenance of Early Neoproterozoic Strata in the Southern–Southeastern North China Craton and Its Implication for Paleogeographic Reconstruction
Sign Up to like & getrecommendations! Published in 2022 at "Minerals"
DOI: 10.3390/min12050510
Abstract: The early Neoproterozoic sediments in the southern–southeastern (S-SE) North China Craton (NCC) are critical in paleogeographic reconstruction. We present new detrital zircon U–Pb–Hf data of five sandstone samples from the Sangwon Supergroup in SE-NCC and… read more here.
Keywords: paleogeographic reconstruction; southeastern north; early neoproterozoic; north china ... See more keywords