Results 51 to 60 of about 908,025 (260)

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

open access: yesGeological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu   +8 more
wiley   +1 more source

Rifting and thermal evolution of the Northwestern Mediterranean

open access: yesAnnals of Geophysics, 1995
The structural setting of the Northwestern Mediterranean stems from tectonothermal processes which reflect on the nature of the crust. The Oligocene to Present evolution is here analysed with a thermal model which takes into account the significant ...
P. Chiozzi, M. Verdoya, V. Pasquale
doaj   +1 more source

Workshop report on hard-rock drilling into mid-Cretaceous Pacific oceanic crust on the Hawaiian North Arch [PDF]

open access: yesScientific Drilling, 2019
The architecture, formation, and modification of oceanic plates are fundamental to our understanding of key geologic processes of the Earth. Geophysical surveys were conducted around a site near the Hawaiian Islands (northeastern Hawaiian North Arch ...
T. Morishita   +10 more
doaj   +1 more source

The igneous oceanic crust – Earth's largest fungal habitat?

open access: yes, 2016
In recent years the igneous oceanic crust has been recognized as a substantial microbial habitat and a scientific frontier within Geology, Biology, and Oceanography.
M. Ivarsson, S. Bengtson, A. Neubeck
semanticscholar   +1 more source

A Global Data Set of Present‐Day Oceanic Crustal Age and Seafloor Spreading Parameters

open access: yesGeochemistry Geophysics Geosystems, 2020
We present an updated oceanic crustal age grid and a set of complementary grids including spreading rate, asymmetry, direction, and obliquity. Our data set is based on a selected set of magnetic anomaly identifications and the plate tectonic model of ...
M. Seton   +8 more
semanticscholar   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

open access: yesGeological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao   +4 more
wiley   +1 more source

Lateral Evolution of the Deep Crustal Structure of the Lesser Antilles Subduction Zone from Wide-Angle Seismic Modeling

open access: yesTektonika
The Lesser Antilles is a subduction zone where devastating earthquakes occur with a long recurrence interval. Here, oceanic lithosphere from the Mid-Atlantic spreading center subducts at a slow convergence velocity of 20 mm/yr underneath the Caribbean ...
Frauke Klingelhoefer   +8 more
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang   +3 more
wiley   +1 more source

Seismic visibility of carbonated subducted oceanic crust in the lower mantle

open access: yesCommunications Earth & Environment
Seismological studies have previously detected abundant scatterers in the lower mantle, potentially linked to long-term slab subduction, and petrology studies suggest carbonates can be sequestrated within the oceanic crust and transported into the lower ...
Yajie Zhao   +4 more
doaj   +1 more source

Rapid magma ascent beneath La Palma revealed by seismic tomography

open access: yesScientific Reports, 2022
For the first time, we obtained high-resolution images of Earth's interior of the La Palma volcanic eruption that occurred in 2021 derived during the eruptive process.
Luca D’Auria   +12 more
doaj   +1 more source

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