Results 31 to 40 of about 16,838 (202)

Oxygen isotope geochemistry of the second HSDP core [PDF]

open access: yes, 2003
Oxygen isotope ratios were measured in olivine phenocrysts (~1 mm diameter), olivine microphenocrysts (generally ~100–200 µm diameter), glass, and/or matrix from 89 samples collected from depths down to 3079.7 m in the second, and main, HSDP core (HSDP-2)
Eiler, John M.   +2 more
core   +1 more source

Abundance and Structure of the Zooplankton Community During a Post-eruptive Process: The Case of the Submarine Volcano Tagoro (El Hierro; Canary Islands), 2013-2018

open access: yesFrontiers in Marine Science, 2021
The mesozooplankton community was analyzed over a 6-year period (2013-2018) during the post-eruptive stage of the submarine volcano Tagoro, located south of the island of El Hierro (Canary Archipelago, Spain).
María Luz Fernández de Puelles   +7 more
doaj   +1 more source

The first ultra-high resolution Digital Terrain Model of the shallow-water sector around Lipari Island (Aeolian Islands, Italy) [PDF]

open access: yes, 2015
Very high resolution bathymetric map obtained through multibeam echosounders data are crucial to generate accurate Digital Terrain Models from which the morphological setting of active volcanic areas can be analyzed in detail. Here we show and discuss
Anzidei, M   +5 more
core   +2 more sources

Submarine radial vents on Mauna Loa Volcano, Hawai'i [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2006
A 2002 multibeam sonar survey of Mauna Loa's western flank revealed ten submarine radial vents and three submarine lava flows. Only one submarine radial vent was known previously. The ages of these vents are constrained by eyewitness accounts, geologic relationships, Mn‐Fe coatings, and geochemical stratigraphy; they range from 128 years B.P.
Wanless, V. Dorsey   +8 more
openaire   +3 more sources

Sea-floor tectonics and submarine hydrothermal systems [PDF]

open access: yes, 2005
The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J.   +2 more
core   +1 more source

Atmospheric modes excited by the 2021 August eruption of the Fukutoku-Okanoba volcano, Izu–Bonin Arc, observed as harmonic TEC oscillations by QZSS

open access: yesEarth, Planets and Space, 2022
Continuous Plinian eruptions of volcanoes often excite atmospheric resonant oscillations with several distinct periods of a few minutes. We detected such harmonic oscillations by the 2021 August eruption of the Fukutoku-Okanoba volcano, a submarine ...
Kosuke Heki, Tatsuya Fujimoto
doaj   +1 more source

The near-field tsunami generated by the 15 January 2022 eruption of the Hunga Tonga-Hunga Ha’apai volcano and its impact on Tongatapu, Tonga

open access: yesScientific Reports, 2022
On 15 January 2022 at 04:15 UTC, the Hunga Tonga-Hunga Ha’apai (HTHH) volcano in Tonga produced a massive eruption that triggered a transoceanic tsunami generated by the coupled ocean and atmospheric shock wave produced during the explosion.
Kwanchai Pakoksung   +2 more
doaj   +1 more source

Petrography and petrology of the Hawaii Scientific Drilling Project lavas: Inferences from olivine phenocryst abundances and compositions [PDF]

open access: yes, 1996
The Mauna Loa (ML) and Mauna Kea (MK) lavas recovered by the Hawaii Scientific Drilling Project (HSDP) include aphyric to highly olivine-phyric basalts.
Alves, Sophie   +2 more
core   +1 more source

Geophysical modeling of collapse‐prone zones at Rumble III seamount, southern Pacific Ocean, New Zealand

open access: yesGeochemistry, Geophysics, Geosystems, 2013
Catastrophic collapses of submarine volcanoes have the potential to generate major tsunami, threatening many coastal populations. Recognizing the difficulties surrounding anticipations of these events, quantitative assessment of collapse‐prone regions ...
F. Caratori Tontini   +5 more
doaj   +1 more source

Gas Geochemistry at Grande Comore and Mayotte Volcanic Islands (Comoros Archipelago), Indian Ocean

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The Comoros archipelago is an active geodynamic region of intra‐plate volcanism within which the youngest and oldest islands (Grande Comore and Mayotte respectively) are characterized by recent volcanic activity.
Marco Liuzzo   +10 more
doaj   +1 more source

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