Subduction initiation of the SE Paleo-Asian Ocean: Evidence from a well preserved intra-oceanic forearc ophiolite fragment in central Inner Mongolia, North China
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2020.116087
Abstract: Abstract Subduction of oceanic lithosphere is the primary driver of plate tectonics on Earth. However, one of the least understood aspects of plate tectonics is how subduction zones initiate, due to the lack of recognition… read more here.
Keywords: forearc; subduction; paleo asian; subduction initiation ... See more keywords
An Early Cambrian plume-induced subduction initiation event within the Junggar Ocean: Insights from ophiolitic mélanges, arc magmatism, and metamorphic rocks
Sign Up to like & getrecommendations! Published in 2020 at "Gondwana Research"
DOI: 10.1016/j.gr.2020.07.002
Abstract: Abstract The Central Asian Orogenic Belt (CAOB) is one of the largest accretionary orogens in the world. The mechanism of continental growth and tectonic evolution of the CAOB remain debated. Here we present an overview… read more here.
Keywords: plume; junggar; subduction; subduction initiation ... See more keywords
Compositional and geochronological signatures of metamafic dykes from the Sangsang peridotites, South Tibet: Evidence for magma-starved forearc rifting during Neo-Tethyan subduction re-initiation
Sign Up to like & getrecommendations! Published in 2020 at "Geoscience frontiers"
DOI: 10.1016/j.gsf.2020.02.015
Abstract: Abstract In this study we present new mineral chemistry, whole-rock geochemical and zircon U–Pb geochronological data for 12 metamafic dykes in the mantle sequence of the Sangsang ophiolite in South Tibet (China). Modal analyses of… read more here.
Keywords: tethyan subduction; metamafic dykes; south tibet; subduction initiation ... See more keywords
Intermediate chromitite in Kızıldağ ophiolite (SE Turkey) formed during subduction initiation in Neo-Tethys
Sign Up to like & getrecommendations! Published in 2019 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2018.10.004
Abstract: Abstract Chromitites in the Kizildag ophiolite mostly occur in the mantle harzburgites and some of them in crustal cumulate dunites. Olivine in both the dunites and chromitites is highly magnesian (Fo = 90.5–92.8 and 90.2–96.1, respectively), while… read more here.
Keywords: intermediate chromitite; olivine dunites; dunites chromitites; subduction initiation ... See more keywords
Coexistence of high-Al and high-Cr chromite orebodies in the Acoje block of the Zambales ophiolite, Philippines: Evidence for subduction initiation
Sign Up to like & getrecommendations! Published in 2020 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2020.103739
Abstract: Abstract The Acoje block of the Eocene Zambales ophiolite (NW, Philippines) is a fragment of forearc lithosphere in the Western Pacific and hosts a world-class chromite deposit. The compositions of chromitites, dunites and harzburgites in… read more here.
Keywords: acoje block; zambales ophiolite; ophiolite philippines; chromite ... See more keywords
Subduction Initiation During Collision‐Induced Subduction Transference: Numerical Modeling and Implications for the Tethyan Evolution
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2019jb019288
Abstract: The collision-induced subduction transference is a composite dynamic process including both the terrane collision/accretion and the subduction initiation (SI) at the neighboring passive margin. Thi... read more here.
Keywords: induced subduction; collision; subduction; subduction transference ... See more keywords
Evidence for simple volcanic rifting not complex subduction initiation in the Laxmi Basin
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-020-16569-y
Abstract: Recently, Pandey et al proposed relict subduction initiation occurred along a passive margin in the northwest Indian Ocean. Here, Clift et al question the evidence for subduction initiation, suggesting that simpler rifting-related processes can more… read more here.
Keywords: subduction; subduction initiation; laxmi basin; evidence ... See more keywords
Differentiating induced versus spontaneous subduction initiation using thermomechanical models and metamorphic soles
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-24896-x
Abstract: Despite the critical role of subduction in plate tectonics, the dynamics of its initiation remains unclear. High-temperature low-pressure metamorphic soles are vestiges of subduction initiation, providing records of the pressure and temperature conditions along the… read more here.
Keywords: temperature; initiation; metamorphic soles; spontaneous subduction ... See more keywords
Subduction initiation and ophiolite crust: new insights from IODP drilling
Sign Up to like & getrecommendations! Published in 2017 at "International Geology Review"
DOI: 10.1080/00206814.2016.1276482
Abstract: ABSTRACT International Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench… read more here.
Keywords: crust new; subduction; subduction initiation; ophiolite crust ... See more keywords
Widespread compression associated with Eocene Tonga-Kermadec subduction initiation
Sign Up to like & getrecommendations! Published in 2017 at "Geology"
DOI: 10.1130/g38617.1
Abstract: Eocene onset of subduction in the western Pacific was accompanied by a global reorganization of tectonic plates and a change in Pacific plate motion relative to hotspots during the period 52–43 Ma. We present seismic-reflection… read more here.
Keywords: compression associated; subduction initiation; widespread compression; eocene ... See more keywords
Do microcontinents nucleate subduction initiation?
Sign Up to like & getrecommendations! Published in 2023 at "Geology"
DOI: 10.1130/g51222.1
Abstract: Subduction initiation is a pivotal process in plate tectonics. Models of subduction initiation include the collapse of passive margins, oceanic transform faults, inversion of oceanic core complexes, and ridge failure but have ignored the potential… read more here.
Keywords: plate; subduction; subduction initiation; microcontinents nucleate ... See more keywords