Results 21 to 30 of about 125,700 (243)

Structure of the lithosphere and conditions of formation of the Chagos-Laccadive Ridge (density and physical modeling)

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
The Chagos-Laccadiv Range is a linear-elongated structure adjacent to the passive margin of western India. The ridge consists of three segments: northern — Lakkadiv ridge, central — Maldives ridge and southern — bank (archipelago) Chagos.
Шайхуллина А.А.   +4 more
doaj   +1 more source

The limits of seaward spreading and slope instability at the continental margin offshore Mt Etna, imaged by high-resolution 2D seismic data [PDF]

open access: yes, 2016
Highlights: - Analysis of a combined new high-resolution 2D seismic and bathymetric data set offshore Mt Etna - Extensional domains are mapped at the shallow subsurface of the continental margin - Compressional structures are mapped at the toe of the ...
Behrmann, Jan Hinrich   +10 more
core   +1 more source

The geochemical characteristics of Cretaceous volcanics in southern Hainan Island and implications for tectonic evolution in the South China Sea

open access: yesFrontiers in Earth Science, 2023
The southeastern Eurasian plate, where the South China Sea (SCS) is located, lies in a complex tectonic setting between the Pacific and Tethys tectonic belts.
Yang Liu   +3 more
doaj   +1 more source

Tectonic overview of the West Gondwana margin [PDF]

open access: yes, 2008
The oceanic southern margin of Gondwana, from southern South America through South Africa, West Antarctica, New Zealand (in its pre break-up position), and Victoria Land to Eastern Australia is one of the longest and longest-lived active continental ...
Pankhurst, Robert J., Vaughan, Alan P.M.
core   +1 more source

Deformation of continental crust along a transform boundary, Coast Mountains, British Columbia [PDF]

open access: yes, 2010
New structural, paleomagnetic, and apatite (U-Th)/He results from the continental margin inboard of the Queen Charlotte fault (~54°N) delineate patterns of brittle faulting linked to transform development since ~50 Ma.
Bogue, Scott W.   +4 more
core   +1 more source

Mantle Structure and Flow Across the Continent‐Ocean Transition of the Eastern North American Margin: Anisotropic S‐Wave Tomography

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Little has been seismically imaged through the lithosphere and mantle at rifted margins across the continent‐ocean transition. A 2014–2015 community seismic experiment deployed broadband seismic instruments across the shoreline of the eastern North ...
Brennan R. Brunsvik   +2 more
doaj   +1 more source

Transform continental margins – Part 1: Concepts and models [PDF]

open access: yes, 2015
International audienceThis paper reviews the geodynamic concepts and models related to transform continental margins, and their implications on the structure of these margins.
Basile, Christophe
core   +2 more sources

Provenance history of a Late Triassic-Jurassic Gondwana margin forearc basin, Murihiku Terrane, North Island, New Zealand: petrographic and geochemical constraints [PDF]

open access: yes, 2004
The Murihiku Terrane in the North Island was a forearc basin adjacent to a volcanic arc along the eastern margin of Gondwana during the Mesozoic. The rocks that infill the basin are mainly volcaniclastic sandstones and mudstones, often turbiditic, with ...
Briggs, Roger M.   +2 more
core   +2 more sources

Geochemical Signature of Mesozoic Volcanic and Granitic Rocks in Madina Regency Area, North Sumatra, Indonesia, and its Tectonic Implication

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol4no2.20094Five samples consisting of two Permian-Triassic basalts, two Triassic-Jurassic granitic rocks, and a Miocene andesite were collected from the Madina Regency area in North Sumatra that is regionally situated on
Iskandar Zulkarnain
doaj   +1 more source

Downgoing Plate‐Buoyancy Driven Retreat of North Sulawesi Trench: Transition of a Passive Margin Into a Subduction Zone

open access: yesGeophysical Research Letters, 2022
The transition of a passive continental margin into a subduction zone remains a hypothesis because few geological cases have been reported. The North Sulawesi subduction zone is a 5–9 myr system in Southeast Asia that has evolved from a passive ...
Miao Dong   +3 more
doaj   +1 more source

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