Results 31 to 40 of about 457,724 (300)

Geological and geophysical signatures of the East Pacific Rise 8°–10°N

open access: yesSolid Earth Sciences, 2019
The East Pacific Rise (EPR) 8°–10°N is an archetype for fast-spreading mid-ocean ridge (MOR), and has been one of the most comprehensively studied MOR sections for over four decades.
M.V.P. Vithana   +4 more
doaj   +1 more source

Gravity Anomalies and Implications for Shallow Mantle Processes of the Western Cocos‐Nazca Spreading Center

open access: yesGeophysical Research Letters, 2023
This study analyzes up‐to‐date gravity data in the Galapagos triple junction region to understand crustal structure and melt distribution beneath the propagating Cocos‐Nazca spreading center (CNSC).
Tingting Zheng   +5 more
doaj   +1 more source

How South Pacific mangroves may respond to predicted climate change and sea level rise [PDF]

open access: yes, 2000
In the Pacific islands the total mangrove area is about 343,735 ha, with largest areas in Papua New Guinea, Solomon Islands, Fiji and New Caledonia. A total of 34 species of mangroves occur, as well as 3 hybrids. These are of the Indo-Malayan assemblage (
BF Clough   +56 more
core   +2 more sources

Atmospheric torques and Earth's rotation: what drove the millisecond-level length-of-day response to the 2015–2016 El Niño? [PDF]

open access: yesEarth System Dynamics, 2017
El Niño–Southern Oscillation (ENSO) events are classically associated with a significant increase in the length of day (LOD), with positive mountain torques arising from an east–west pressure dipole in the Pacific driving a rise of atmospheric angular
S. B. Lambert, S. L. Marcus, O. de Viron
doaj   +1 more source

Active eruption seen on East Pacific Rise

open access: yesEos, Transactions American Geophysical Union, 1991
Investigators involved in the ADVENTURE program, an Alvin dive program on the East Pacific Rise crest at 9°–10°N, have reported evidence suggesting very recent and possibly ongoing eruptive activity along this portion of the mid‐ocean ridge. Preliminary age dating of basalt samples from the new flows (Figure 1) suggest that the eruption did, in fact ...
Rachel M. Haymon   +17 more
openaire   +1 more source

Variations in the annual cycle of the East Asian monsoon and its phase-induced interseasonal rainfall anomalies in China

open access: yesAtmospheric and Oceanic Science Letters, 2020
The East Asian monsoon (EAM) exhibits a robust annual cycle with significant interannual variability. Here, the authors find that the EAM annual cycle can be decomposed into the equinoctial and solstitial modes in the combined sea level pressure, 850-hPa
Song JIANG, Congwen ZHU, Ning JIANG
doaj   +1 more source

High‐Resolution Isotopic Variability Across EPR Segment 16°N: A Chronological Interpretation of Source Composition and Ridge‐Seamount Interaction

open access: yesGeochemistry, Geophysics, Geosystems, 2021
A high‐resolution sampling profile constituted of 52 basalt samples from across the East Pacific Rise (EPR) was investigated. These samples provide a unique opportunity to study the coeval recording of isotopic signals derived from sub‐marine eruptions ...
Berengere Mougel   +3 more
doaj   +1 more source

The TsuJal Amphibious Seismic Network: A Passive-Source Seismic Experiment in Western Mexico

open access: yesFrontiers in Earth Science, 2021
The geodynamic complexity in the western Mexican margin is controlled by the multiple interactions between the Rivera, Pacific, Cocos, and North American plates, as evidenced by a high seismicity rate, most of whose hypocenters are poorly located.
Francisco Javier Núñez-Cornú   +7 more
doaj   +1 more source

Evolution of the south Pacific helium plume over the past three decades [PDF]

open access: yes, 2017
Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.
Jenkins, William J., Lupton, John E.
core   +1 more source

Active rifting and crustal thinning along the Rivera-Cocos plate boundary as inferred from Mantle Bouguer gravity anomalies [PDF]

open access: yesGeofísica Internacional, 2004
The El Gordo graben lies within the oceanic lithosphere west of the Middle America Trench at 18.15°N, 104.7°W. This graben has been proposed to mark the southwest tip of an active zone of extension located between the Rivera and Cocos plates. The results
Carlos A. Mortera Gutiérrez   +2 more
doaj  

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