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The role of pre-break-up heat flow on the thermal history of a transform margin

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00111424" target="_blank" >RIV/00216224:14310/16:00111424 - isvavai.cz</a>

  • Result on the web

    <a href="https://sp.lyellcollection.org/content/specpubgsl/431/1/249.full.pdf" target="_blank" >https://sp.lyellcollection.org/content/specpubgsl/431/1/249.full.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1144/SP431.4" target="_blank" >10.1144/SP431.4</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The role of pre-break-up heat flow on the thermal history of a transform margin

  • Original language description

    The paper focuses on the Romanche transform margin on the African side of the Equatorial Atlantic, and draws from thermomechanical numerical modelling and subsequent GIS-based thermal history grid processing. Our modelling indicates that the early post-break-up thermal history of the transform margin is controlled by the cooling patterns of the adjacent pull-apart terrains, the pre-rift heat-flow regime, laterally passing seafloor spreading centres, and cooling of the newly accreted oceanic crust in two corridors located in front of and behind the spreading centres. The pre-rift thermal regime controls the background heat flow on top of which the thermal transients develop. If it is cold, the transient anomalies are very distinct on this background. If it is warm, the transient anomalies tend to blend in with background heat flow much better. The most prominent anomalies are related to thinning in the pull-apart terrains located between transforms. They are up to three times wider than anomalies related to the laterally passing spreading centre, the anomaly of which becomes no wider than 20-25 km. Together with oceanic crust accreted in corridors in front of and behind the passing centre, its heat transfer into the transform margin tends to slow down the cooling of the syn-break-up anomalies developed in the pull-apart terrains by rifting.

  • Czech name

  • Czech description

Classification

  • Type

    C - Chapter in a specialist book

  • CEP classification

  • OECD FORD branch

    10505 - Geology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Book/collection name

    TRANSFORM MARGINS: DEVELOPMENT, CONTROLS AND PETROLEUM SYSTEMS

  • ISBN

    9781862397446

  • Number of pages of the result

    23

  • Pages from-to

    249-271

  • Number of pages of the book

    385

  • Publisher name

    Geological Society

  • Place of publication

    Bath

  • UT code for WoS chapter

    000388376400011