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    Geochronological constraints on the Legs Lake shear zone with implications for regional exhumation of lower continental crust, western Churchill Province, Canadian Shield
    Contributions to Mineralogy and Petrology (2006)
    Kevin H. MahanMichael L. WilliamsRebecca M. FlowersMichael J. JercinovicJulia A. BaldwinSamuel A. Bowring
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    Keywords:
    Collision zone
    Geochronology
    Thermochronology
    Topics:
    Geological and Geochemical Analysis
    earthquake and tectonic studies
    High-pressure geophysics and materials
    Metamorphism in collision zones
    Springer eBooks (1991)
    Roger M. Mason
    continental collision
    Convergent boundary
    Collision zone
    Continental Margin
    Eclogitization
    Eurasian Plate
    Citations (0)
    Numerical modeling of the incorporation of mantle peridotites into continental crust during continental collision
    EGU General Assembly Conference Abstracts (2018)
    Elena SizovaChristoph HauzenbergerTaras GeryaHarald FritzShah Wali Faryad
    continental collision
    Collision zone
    Continental Margin
    Citations (0)
    Metamorphism in collision zones
    Springer eBooks (1990)
    Roger Mason
    continental collision
    Convergent boundary
    Collision zone
    Continental Margin
    Eclogitization
    Eurasian Plate
    Citations (0)
    Water in granulites: implications for the nature and evolution of the lower continental crust
    Progress in Natural Science Materials International (2007)
    Xiaozhi YangXia QunkeÉtienne DelouleQicheng FanHad Yaritao
    Citations (1)
    Maximum Scale of Continental Crust Sliver Driven By Subducting Oceanic Slab: South Island of New Zealand and Ultra High Pressure Metamorphism at Dabie, China
    Chinese Journal of Geophysics (2001)
    Yao ShiTaoyuan Fan
    Abstract A basic question in the mechanics of ultra high pressure metamotphism (UHPM) formation is why low density continental crust can overcome buoyancy and be subducted into high density mantle more than 100km deep. 3‐D finite element computation shows that subducting oceanic lithosphere can drag continental slivers up to 150km wide to great depth, to produce large scale UHPM belts which are relatively rare in the world. Smaller bodies of continental crust up to tens of kilometers in size can be also be taken to UHPM depth by subducting mantle, as evidenced by the presence of scattered UHPM rock occurrences in orogenic belts. Continental‐continental collision does not allow continental crust subductioin to UHPM depth.
    Convergent boundary
    Collision zone
    Continental Margin
    Slab
    Citations (2)
    Late Extensional Modification of a Compressional Orogen: Evidence from Eastern Ghats Granulite Belt, India and its Analogue in Other Gondwana Fragments
    Gondwana Research (2001)
    Ashit K. Swain
    Citations (1)
    P-wave velocity in granulites from South India: implications for the continental crust
    International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (1992)
    Citations (1)
    Low-temperature thermochronology of fundamental structures in the Gulf Extensional Province, Baja California, Mexico
    Geochimica et Cosmochimica Acta (2003)
    Andrew GleadowBarry P. KohnJ. M. FletcherR. W. BrownAsaf Raza
    Thermochronology
    Citations (1)
    Interplay between oceanic subduction and continental collision in building continental crust
    Nature Communications (2022)
    Di‐Cheng ZhuQing WangRoberto F. WeinbergPeter A. CawoodSun‐Lin Chung
    Generation of continental crust in collision zones reflect the interplay between oceanic subduction and continental collision. The Gangdese continental crust in southern Tibet developed during subduction of the Neo-Tethyan oceanic slab in the Mesozoic prior to reworking during the India-Asia collision in the Cenozoic. Here we show that continental arc magmatism started with fractional crystallization to form cumulates and associated medium-K calc-alkaline suites. This was followed by a period commencing at ~70 Ma dominated by remelting of pre-existing lower crust, producing more potassic compositions. The increased importance of remelting coincides with an acceleration in the convergence rate between India and Asia leading to higher basaltic flow into the Asian lithosphere, followed by convergence deceleration due to slab breakoff, enabling high heat flow and melting of the base of the arc. This two-stage process of accumulation and remelting leads to the chemical maturation of juvenile continental crust in collision zones, strengthening crustal stratification.
    continental collision
    Convergent boundary
    Collision zone
    Eclogitization
    Continental Margin
    Underplating
    Citations (72)