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Showing results for tags 'large igneous provinces'.
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Massive Submarine Volcanic Plateau Has Been Lurking on the Pacific Ocean Floor
Oxytropidoceras posted a topic in Geology
Massive Submarine 'Superstructure' Has Been Lurking on the Pacific Ocean Floor; Scientists Explore Its Formation and Growth. Margaret Davis, LiveScience, Jan 11, 2024 Experts stunned by massive underwater structure expanding since Jurassic era. By Vikrant Singh, WION (India), January 11, 2024 The paywalled paper is: Konrad, K., Balbas, A., Finlayson, V.A., Jackson, M.G., Konter, J.G., Koppers, A.A., Price, A.A. and Steinberger, B., 2024. Four distinct pulses of volcanism built the Melanesian Border Plateau: Implications for oceanic mid-plate superstructure formation. Earth and Planetary Science Letters, 626, no.118549. Yours, Paul H.-
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- cretaceous
- fiji
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Two recent explanations for the Paleocene-Eocene Thermal Maximum (PETM)
Oxytropidoceras posted a topic in Fossil News
Orbit of Doom: The Surprising Connection Between Earth’s Orbital Patterns and an Ancient Warming Event, SciTechDaily, Pennsylvania State University, January 15, 2023 The open access paper is: Li, M., Bralower, T.J., Kump, L.R., Self-Trail, J.M., Zachos, J.C., Rush, W.D. and Robinson, M.M., 2022. Astrochronology of the Paleocene-Eocene Thermal Maximum on the Atlantic Coastal Plain. Nature communications, 13(1), pp.1-13. Another explanation for the PETM is: New imaging finds trigger for massive global warming 56 million years ago 56 million years ago, hot magma scorched the sediments under the Atlantic seafloor. Howard Lee, ArsTechnica, January 13, 2023 The open access publications are: Jones, S.M., Hoggett, M., Greene, S.E. and Dunkley Jones, T., 2019. Large Igneous Province thermogenic greenhouse gas flux could have initiated Paleocene-Eocene Thermal Maximum climate change. Nature Communications, 10(1), pp.1-16. Knight, H., Jones, S.M., Hopper, J.R., O'Reilly, B.M. and Funck, T., 2022. Project PORO-CLIM initial results: Towards a new oceanic crustal record of magma productivity throughout initiation of the North Atlantic Igneous Province (No. EGU22-12380). Copernicus Meetings. Yours, Paul H.-
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- astrochronology
- carbon cycle
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Kerguelen oceanic plateau sheds light on continent formation
Oxytropidoceras posted a topic in Geology
The Kerguelen oceanic plateau sheds light on the formation of continents by CNRS, PhysOrg https://phys.org/news/2020-06-kerguelen-oceanic-plateau-formation-continents.html The paper is: Ponthus, L., de Saint Blanquat, M., Guillaume, D., Romancer, M.L., Pearson, N., O’Reilly, S. and Grégoire, M., Plutonic processes in transitional oceanic plateau crust: structure, age and emplacement of the South Rallier du Baty laccolith, Kerguelen Islands. Terra Nova. https://onlinelibrary.wiley.com/doi/abs/10.1111/ter.12471 A related paper is: Borissova, I and Moore, A and Sayers, J and Parums, R and Coffin, MF and Symonds, PA, Geological framework of the Kerguelen Plateau and adjacent ocean basins, Geoscience Australia Record 2002/05, Petroleum & Marine Division, Geoscience Australia, Canberra (2002) https://www.researchgate.net/publication/313158291_Geological_framework_of_the_Kerguelen_Plateau_and_adjacent_ocean_basins https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/38753 https://www.ga.gov.au/scientific-topics/energy/province-sedimentary-basin-geology/petroleum/offshore-southern-australia/kerguelen-plateau Yours, Paul H.-
- continential crust
- kerguelen plateau
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Volcanic Eruptions Led to Mass Extinction 370 Million Years Ago ??
Oxytropidoceras posted a topic in Fossil News
Mercury Rising: New evidence that volcanism triggered the late Devonian extinction, Geological Society of America, May 1, 2018 https://www.sciencedaily.com/releases/2018/05/180501161805.htm Volcanic Eruptions Led to Mass Extinction 370 Million Years Ago http://www.sci-news.com/geology/volcanic-eruptions-late-devonian-mass-extinction-05967.html The abstract is: Grzegorz Racki, Michał Rakociński, Leszek Marynowski, Paul B. Wignall. Mercury enrichments and the Frasnian- Famennian biotic crisis: A volcanic trigger proved? Geology, 2018; DOI: 10.1130/G40233.1 https://pubs.geoscienceworld.org/gsa/geology/article-abstract/530692/mercury-enrichments-and-the-frasnian-famennian Related papers are: Courtillot, V., Kravchinsky, V.A., Quidelleur, X., Renne, P.R. and Gladkochub, D.P., 2010. Preliminary dating of the Viluy traps (Eastern Siberia): Eruption at the time of Late Devonian extinction events?. Earth and Planetary Science Letters, 300(3-4), pp. 239-245. https://sites.ualberta.ca/~vadim/Publications-Kravchinsky.htm https://sites.ualberta.ca/~vadim/Publications-Kravchinsky_files/2010-Courtillot et al - Preliminary dating of the Viluy traps.pdf Kravchinsky, V.A., 2012. Paleozoic large igneous provinces of Northern Eurasia: correlation with mass extinction events. Global and Planetary Change, 86, pp. 31-36. https://sites.ualberta.ca/~vadim/Publications-Kravchinsky.htm https://sites.ualberta.ca/~vadim/Publications-Kravchinsky_files/2012-Kravchinsky - Paleozoic large igneous provinces of Northern Eurasia- Correlation with mass extinction events.pdf Ricci, J., Quidelleur, X., Pavlov, V., Orlov, S., Shatsillo, A. and Courtillot, V., 2013. New 40Ar/39Ar and K–Ar ages of the Viluy traps (Eastern Siberia): further evidence for a relationship with the Frasnian–Famennian mass extinction. Palaeogeography, Palaeoclimatology, Palaeoecology, 386, pp. 531-540. http://paleomag-ifz.ru/en/articles?page=1 http://www.paleomag-ifz.ru/sites/default/files/articles/ricci_et_al.pdf Carmichael, S.K., Waters, J.A., Batchelor, C.J., Coleman, D.M., Suttner, T.J., Kido, E., Moore, L.M. and Chadimová, L., 2016. Climate instability and tipping points in the Late Devonian: detection of the Hangenberg Event in an open oceanic island arc in the Central Asian Orogenic Belt. Gondwana Research, 32, pp. 213-231. https://pdfs.semanticscholar.org/270e/8f86bcc9677b802e049640d2dc8f8ab01652.pdf Yours, Paul H.