Results 111 to 120 of about 1,853 (212)

Biological diversification linked to environmental stabilization following the Sturtian Snowball glaciation. [PDF]

Sci Adv, 2023
Bowyer FT, Krause AJ, Song Y, Huang KJ, Fu Y, Shen B, Li J, Zhu XK, Kipp MA, van Maldegem LM, Brocks JJ, Shields GA, Le Hir G, Mills BJW, Poulton SW.   +14 more
europepmc   +1 more source

Chemostratigraphy and paleoenvironmental analysis of sand-shale formations using core geochemical spectroscopy tools

Proceedings of the Nigerian Society of Physical Sciences
Modern investigations into spectral gamma-ray (SGR) records enhance understanding of sedimentary environments and paleoenvironmental conditions. This study examines a 111 m sand and shale interval in the Tak-1 well, Niger Delta Basin, to characterize ...
Oluwakemi Efemena, Franklin Lucas
doaj   +1 more source

Nickel isotopes link Siberian Traps aerosol particles to the end-Permian mass extinction. [PDF]

Nat Commun, 2021
Li M, Grasby SE, Wang SJ, Zhang X, Wasylenki LE, Xu Y, Sun M, Beauchamp B, Hu D, Shen Y.   +9 more
europepmc   +1 more source

Large igneous provinces played a major role in oceanic oxygenation events during the mid-Proterozoic

Communications Earth & Environment
Low atmospheric oxygen levels during the mid-Proterozoic were occasionally interrupted by transient high oxygen levels. The cause of mid-Proterozoic ocean redox variability remains unclear.
Anbo Luo, Guangyi Sun, Stephen E. Grasby, Runsheng Yin   +3 more
doaj   +1 more source

Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction. [PDF]

Sci Adv, 2022
Kozik NP, Young SA, Newby SM, Liu M, Chen D, Hammarlund EU, Bond DPG, Them TR, Owens JD.   +8 more
europepmc   +1 more source

Solar irradiance and ENSO affect food security in Lake Tanganyika, a major African inland fishery. [PDF]

Sci Adv, 2020
McGlue MM, Ivory SJ, Stone JR, Cohen AS, Kamulali TM, Latimer JC, Brannon MA, Kimirei IA, Soreghan MJ.   +8 more
europepmc   +1 more source

Mercury abundance and isotopic composition indicate subaerial volcanism prior to the end-Archean "whiff" of oxygen. [PDF]

Proc Natl Acad Sci U S A, 2021
Meixnerová J, Blum JD, Johnson MW, Stüeken EE, Kipp MA, Anbar AD, Buick R.   +6 more
europepmc   +1 more source

A transient peak in marine sulfate after the 635-Ma snowball Earth. [PDF]

Proc Natl Acad Sci U S A, 2022
Peng Y, Bao H, Jiang G, Crockford P, Feng D, Xiao S, Kaufman AJ, Wang J.   +7 more
europepmc   +1 more source

Chemostratigraphy Across the Triassic–Jurassic Boundary

, 2019
The Triassic‐Jurassic transition (~201.5 Ma) is marked by one of the largest mass extinctions in Earth’s history. This was accompanied by significant perturbations in ocean and atmosphere geochemistry, including the global carbon cycle, as expressed by major fluctuations in carbon isotope ratios.
openaire   +2 more sources

European mammal turnover driven by a global rapid warming event preceding the Paleocene-Eocene Thermal Maximum. [PDF]

Proc Natl Acad Sci U S A
Tabuce R, Marandat B, Adnet S, Gernelle K, Girard F, Marivaux L, Solé F, Schnyder J, Steurbaut E, Storme JY, Vianey-Liaud M, Yans J.   +11 more
europepmc   +1 more source