[Centre National de la Recherche Scientifique (CNRS), 75 - Paris (France) Maury, R.C.

(authors)Įocene to Miocene back-arc basin basalts and associated island arc tholeiites from northern Sulawesi ( Indonesia): Implications for the geodynamic evolution of the Celebes basin Basaltes de bassin arriere-arc de l`Eocene-Miocene et tholeiites d`arc insulaire associees du nord Sulawesi (Indonesie): implications pour l`evolution geodynamique du bassin des CelebesĮnergy Technology Data Exchange (ETDEWEB) The North Sulawesi island arc could be interpreted as having progressively retreated northward on its own Celebes sea back arc basin, during an episode of Palaeogene-early Neogene tectonic erosion along the trench. The 25 deg late Neogene clockwise rotation of the north arm of Sulawesi following its collision with fragments of Australia (Sula, Buton) is not sufficient to explain the asymmetrical magnetic anomalies in the Celebes basin. Age and geochemical similarities between these basalts and those drilled in the Celebes Sea indicate this North Sulawesi volcanic arc was built on the same oceanic crust. Joron, J.L.Įocene BABB basalts intruded by tholeiitic and calk-alkalic island arc magmatic rocks are reported from the north arm of Sulawesi ( Indonesia). International Nuclear Information System (INIS) Eocene to Miocene back-arc basin basalts and associated island arc tholeiites from northern Sulawesi ( Indonesia): Implications for the geodynamic evolution of the Celebes basin

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