Results 91 to 100 of about 7,121 (239)
Carbonation of Peridotite in The Oman Ophiolite
, 2014 The formation of carbonate minerals during alteration of ultramafic rocks represents a geological analogue of mineral carbon sequestration. In the Oman Ophiolite, these carbonation reactions are manifested in (1) active, on-going low-temperature systems involving meteoric water, which result in serpentinization, carbonate vein formation, and travertine
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Variations in Hawaiian Plume Flux Controlled by Ancient Mantle Depletion
AGU Advances, Volume 6, Issue 2, April 2025.Abstract Mantle plumes—upwellings of buoyant rock in Earth's mantle—feed hotspot volcanoes such as Hawai‘i. The size of volcanoes along the Hawai‘i–Emperor chain, and thus the magma flux of the Hawaiian plume, has varied over the past 85 million years. Fifteen and two million years ago, rapid bursts in magmatic production led to the emergence of large ...
Paul Béguelin +5 more
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract Triassic calc‐alkaline volcanics that are mainly exposed in the Hellenides—Dinarides orogen, as well as eastwards in the Afyan Zone, are considered to constrain the petrogenetic mechanisms that led to their formation, and to unravel the geodynamic processes that occurred in the western Tethys, related to the NW Gondwana (Apulia) promontory and
Petros Koutsovitis +10 more
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On the serpentine (peridotite) occurring in the Onondaga salt group at Syracuse, New York [PDF]
, 1887 G. H. Williams
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract Volcanic and seismic unrest on the Reykjanes Peninsula in SW Iceland that started in late 2019 after ∼800 years of quiescence has drawn wide interest to this on‐land extension of the Mid‐Atlantic spreading ridge. Here, we use seismic data collected across the larger Peninsula region, covering six volcanic systems and associated high ...
J. Jenkins +13 more
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The peridotites of the "Cortlandt series" on the Hudson River near Peekskill, New York [PDF]
, 1886 G. H. Williams
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Notes on the peridotite of Elliott County, Kentucky [PDF]
American Journal of Science, 1886 n ...
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Linking Cenozoic Magmatism in the North‐Central Tibetan Plateau With Plateau Growth
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract Accurate reconstruction of paleo‐crustal and lithospheric thicknesses is crucial for understanding the deep geodynamic processes driving the uplift and growth of the Tibetan Plateau (TP) and their association with Cenozoic magmatism. We reconstruct the Cenozoic crustal thickness evolution of the north‐central TP using a machine learning model ...
Peng Guo, Ting Yang, Wei‐Qiang Ji
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A Microscopical Study of the Iron Ore, or Peridotite of Iron Mine Hill, Cumberland, Rhode Island [PDF]
, 1881 Michael Wadsworth
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Investigating the Lid Effect on the Generation of Ocean Island Basalts: 2. Geodynamical Simulations
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.Abstract The concept that oceanic lithosphere mechanically limits upwelling and decompression melting of mantle plumes is known as the lid effect and is backed up by observations of ocean island basalt (OIB) geochemistry. Nevertheless, in a recent companion study on OIB geochemistry, several additional factors were identified that further influence OIB
Shihao Jiang +5 more
wiley +1 more source