Lithospheric mantle xenoliths as a proxy for asthenospheric thermal events

DOI

Bibliographic Information

Other Title
  • マントルゼノリスによるアセノスフェア熱事象の検出

Abstract

Thick lithosphere beneath continents plays an important role in suppressing heat loss from the earth. Heat flux through lithosphere-asthenosphere boundary (LAB) is critical in this regard and has been estimated from surface heat flow and thermal structure of the lithosphere from mantle xenoliths in alkali basalts and kimberlites by assuming steady heat flow and chemical equilibrium. We have estimated temporal change of thermal structure of the lithosphere near the LAB without such assumptions from mineral chemical study of spinel lherzolite xenoliths in alkali basalt from the Middle Atlas in Morocco and succeeded in detection of asthenospheric thermal event. <br>

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Details 詳細情報について

  • CRID
    1390002184862814208
  • NII Article ID
    130007785260
  • DOI
    10.14824/jakoka.2015.0_169
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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