Results 1 to 10 of about 18,299,024 (255)

Crustal Magma Storage and Plumbing System Beneath the Tianchi and Wangtian'e Volcanoes, Changbaishan Intraplate Volcanic Field, China and North Korea

open access: yesGeochemistry, Geophysics, Geosystems
The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene ...
Xiaomeng Niu   +9 more
doaj   +1 more source

Integrating Olivine Diffusion Chronometry With Monitoring Data to Decipher the Magma Dynamics at the Submarine Fani Maoré Volcano

open access: yesGeochemistry, Geophysics, Geosystems
Monitoring data are critical for understanding volcanic unrest and eruption, but they often lack the ability to constrain the pre‐eruptive magma processes.
Karoline Brückel   +8 more
doaj   +1 more source

Radiocarbon and Stable Carbon Isotope Constraints on the Propagation of Vent CO2 to Fluid in the Acidic Kueishantao Shallow Water Hydrothermal System

open access: yesGeochemistry, Geophysics, Geosystems, 2022
We report radiocarbon and stable carbon isotope measurements from vent gas (CO2(g)), dissolved inorganic carbon (DIC), and particulate organic carbon (POC), from two vents of the Kueishantao (KST) shallow‐water hydrothermal system, offshore northeast ...
Shing‐Lin Wang   +4 more
doaj   +1 more source

Magnetotelluric Image of Transcrustal Magmatic System Beneath the Tulu Moye Geothermal Prospect in the Ethiopian Rift

open access: yesGeophysical Research Letters, 2018
Continental rifting is initiated by a dynamic interplay between tectonic stretching and mantle upwelling. Decompression melting assists continental breakup through lithospheric weakening and enforces upflow of melt to the Earth's surface.
Friedemann Samrock   +3 more
doaj   +1 more source

Gemological, Geochemical, and Geochronological Study of Apatite from the Shijiangshan, Inner Mongolia

open access: yesCrystals
Apatite, a ubiquitous accessory mineral, serves as a valuable recorder of magmatic processes. This study presents a systematic investigation of gem-quality apatite from the Shijiangshan Pb-Zn deposit, Inner Mongolia, integrating gemological ...
Ming-Yue Wang   +4 more
doaj   +1 more source

The East Pacific Rise Between 9°N and 10°N: Twenty-Five Years of Integrated, Multidisciplinary Oceanic Spreading Center Studies [PDF]

open access: yesOceanography, 2012
The East Pacific Rise from ~ 9–10°N is an archetype for a fast-spreading mid-ocean ridge. In particular, the segment near 9°50'N has been the focus of multidisciplinary research for over two decades, making it one of the best-studied areas of the global ...
Daniel J. Fornari   +16 more
doaj  

Structure of the Castellaccio Pluton (Asinara Island, Italy)

open access: yesJournal of Maps, 2018
This paper illustrates the geological and structural map (scale 1:10,000) of the Castellaccio Pluton (Asinara island – Italy), a peraluminous granodioritic intrusion of Variscan age that belongs to the Corsica-Sardinia Batholith. This small pluton, about
Stefano Cuccuru   +3 more
doaj   +1 more source

Time Variation in the Chemical and Isotopic Composition of Fumarolic Gasses at Kusatsu-Shirane Volcano, Japan

open access: yesFrontiers in Earth Science, 2019
Minor seismicity may occur at volcanoes with hydrothermal system before a steam eruption. To forecast any steam eruption, it is indispensable to detect and understand the nature of this shallow seismicity. As the fumarolic gas resides in the hydrothermal
Takeshi Ohba   +6 more
doaj   +1 more source

Copper sulfide deposition and remobilisation triggered by non-magmatic fluid incursion in the single-intrusion Tongchang porphyry system, SE China

open access: yesScientific Reports
Porphyry ore deposits are a major source of base and precious metals. Likewise, they bear important fingerprints for understanding magmatic / hydrothermal processes in the convergent margin.
Xuan Liu   +3 more
doaj   +1 more source

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