Results 1 to 10 of about 365,115 (188)

Sulfide resorption during crustal ascent and degassing of oceanic plateau basalts [PDF]

open access: yesNature Communications, 2019
The solubility of sulfur in basaltic melt has important implications for the formation of magmatic ore deposits. Here, the authors show that magma ascent and sulfur-degassing influence the degree to which basaltic magmas are enriched in economically ...
C. D. J. Reekie   +5 more
doaj   +2 more sources

Mesozooplankton structure and functioning during the onset of the Kerguelen phytoplankton bloom during the KEOPS2 survey [PDF]

open access: yesBiogeosciences, 2015
This paper presents results on the spatial and temporal distribution patterns of mesozooplankton in the naturally fertilized region to the east of the Kerguelen Islands (Southern Ocean) visited at early bloom stage during the KEOPS2 survey (15 October to
F. Carlotti   +7 more
doaj   +1 more source

Aseismic ridge subduction and flat subduction: Insights from three-dimensional numerical models

open access: yesEarth and Planetary Physics, 2023
Flat subduction can significantly influence the distribution of volcanism, stress state, and surface topography of the overriding plate. However, the mechanisms for inducing flat subduction remain controversial.
Hui Zhao, Wei Leng
doaj   +1 more source

Nature and Origin of Magnetic Lineations Within Valdivia Bank: Ocean Plateau Formation by Complex Seafloor Spreading

open access: yesGeophysical Research Letters, 2023
Valdivia Bank (VB) is a Late Cretaceous oceanic plateau formed by volcanism from the Tristan‐Gough hotspot at the Mid‐Atlantic Ridge (MAR). To better understand its origin and evolution, magnetic data were used to generate a magnetic anomaly grid, which ...
S. Thoram   +29 more
doaj   +1 more source

Subduction Initiation by Plume‐Plateau Interaction: Insights From Numerical Models

open access: yesGeochemistry, Geophysics, Geosystems, 2020
It has recently been demonstrated that the interaction of a mantle plume with sufficiently old oceanic lithosphere can initiate subduction. However, the existence of large lithospheric heterogeneities, such as a buoyant plateau, in proximity to a rising ...
Marzieh Baes   +3 more
doaj   +1 more source

Bathymetry of Valdivia Bank, Walvis Ridge, South Atlantic Ocean: Implications for Structure and Geologic History of a Hot Spot Plateau

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Valdivia Bank is an oceanic plateau in the South Atlantic formed by hot spot magmatism at the Mid‐Atlantic Ridge during the Late Cretaceous. It is part of the Walvis Ridge, an aseismic ridge and seamount chain widely considered to be formed by age ...
E. Contreras   +6 more
doaj   +1 more source

Constraints on the structure of the oceanic crust of the Tamu Massif by teleseismic P-wave coda autocorrelation

open access: yesFrontiers in Earth Science, 2023
The Tamu Massif, considered the biggest single volcano on Earth, was formed by the accumulation of enormous amounts of magma erupting to the surface. It is the largest and oldest seamount in Shatsky Rise, which is the third largest oceanic plateau on ...
Fucong Xu   +9 more
doaj   +1 more source

Effects of Ocean Tide Load on Vertical Crustal Deformation in Northeastern Margin of Qinghai Tibet Plateau [PDF]

open access: yesE3S Web of Conferences, 2020
Periodic crustal movement are mainly caused by ocean tides and changes of atmospheric pressure. In this project, the researcher has used the spherical harmonic coefficient of the ocean tide and actual observation data to study the impact on vertical ...
Yang Guolin   +4 more
doaj   +1 more source

Spatial distribution of oceanic moisture contributions to precipitation over the Tibetan Plateau [PDF]

open access: yesHydrology and Earth System Sciences, 2022
Evaporation from global oceans is an important moisture source for glaciers and headwaters of major Asian rivers in the Tibetan Plateau (TP). Although the accelerated global hydrological cycle, the altered sea–land thermal contrast and the amplified ...
Y. Li   +10 more
doaj   +1 more source

Magmatic surge requires two-stage model for the Laramide orogeny

open access: yesNature Communications, 2023
The Laramide orogeny is a pivotal time in the geological development of western North America, but its driving mechanism is controversial. Most prominent models suggest this event was caused by the collision of an oceanic plateau with the Southern ...
Joshua J. Schwartz   +6 more
doaj   +1 more source

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