Results 31 to 40 of about 11,428 (216)

Impact of volcanism on the sedimentary record of the Neuquén rift basin, Argentina: towards a cause and effect model [PDF]

open access: yes, 2018
The analysis of volcano-sedimentary infill in sedimentary basins constitutes a challenge for basin analysis and hydrocarbon exploration worldwide. In order to understand the contribution of volcanism to the sedimentary record in rift basins, we study the
Abebe   +150 more
core   +2 more sources

Origins of sediments and fluids in submarine mud volcanoes off Tanegashima Island, northern Ryukyu Trench, Japan

open access: yesFrontiers in Earth Science, 2023
Mud volcanoes are topographic features through which over-pressurized sediments are intruded upward and erupted, transporting fluids and sediments from the deep subsurface to the surface/seafloor. To understand material and biogeochemical cycling through
Akira Ijiri   +18 more
doaj   +1 more source

Seabed gas emissions and submarine landslides off SW Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2018
Methane emissions out of the seabed could seriously affect Earth’s climate and are usually associated with the dissociation of gas hydrates stored in marine sediments on the continental margins.
Shu-Kun Hsu   +9 more
doaj   +1 more source

Affluence of Data on Volcanism in The Gulf of Cadiz

open access: yesData Science Journal, 2009
This paper reports the recent progress on mud volcanism data accumulation in the case of the Gulf of Cadiz area. The discovery of giant mud volcanoes, deep coral reefs, and gas hydrates in 1999, from the Guadalquivir Diapiric Ridge to the Larache ...
E Wulff-Barreiro
doaj   +1 more source

Modeling pN2 through Geological Time: Implications for Planetary Climates and Atmospheric Biosignatures [PDF]

open access: yes, 2016
Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have proposed that the size of this ...
Buick, R.   +5 more
core   +2 more sources

The geology and geochronology of Al Wahbah maar crater, Harrat Kishb, Saudi Arabia [PDF]

open access: yes, 2014
Al Wahbah is a large (∼2.2 km diameter, ∼250 m deep) maar crater in the Harrat Kishb volcanic field in western Saudi Arabia. It cuts Proterozoic basement rocks and two Quaternary basanite lava flows, and is rimmed with an eroded tuff ring of debris from ...
Abdel Wahab, Antar   +4 more
core   +1 more source

Continental degassing of helium in an active tectonic setting (northern Italy): the role of seismicity [PDF]

open access: yes, 2020
In order to investigate the variability of helium degassing in continental regions, its release from rocks and emission into the atmosphere, here we studied the degassing of volatiles in a seismically active region of northern Italy (MwMAX = 6) at the ...
Buttitta D.   +5 more
core   +1 more source

Geoelectric heterogeneities of the Kerch iron ore basin

open access: yesГеофизический журнал, 2021
The three-dimensional geoelectric model of the Earth’s crust and upper mantle of the Kerch Peninsula has been built for the first time based on the results of experimental observations of the Earth’s low-frequency electromagnetic field, carried out in ...
I. Yu. Nikolaev   +3 more
doaj   +1 more source

Fluids mobilization in Arabia Terra, Mars: depth of pressurized reservoir from mounds self-similar clustering

open access: yes, 2019
Arabia Terra is a region of Mars where signs of past-water occurrence are recorded in several landforms. Broad and local scale geomorphological, compositional and hydrological analyses point towards pervasive fluid circulation through time.
Cremonese, Gabriele   +6 more
core   +1 more source

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