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Media type:
E-Article
Title:
Tectonostratigraphy and Structures of Eastern Seram
Contributor:
Bachri, Syaiful
imprint:
Indonesian Journal on Geoscience, 2011
Published in:Indonesian Journal on Geoscience
Language:
Not determined
DOI:
10.17014/ijog.6.2.85-93
ISSN:
2355-9306;
2355-9314
Origination:
Footnote:
Description:
<jats:p>DOI: 10.17014/ijog.v6i2.118The eastern Seram is part of the Outer Banda Arc consisting of para-autochthonous and allochthonous units which are unconformably overlain by the autochthonous units. The para-autochthonous units are derived from the outer margin of the Australian NW Shelf. This sequence comprises Permian metamorphic rocks of the Kobipoto Complex and its cover of Triassic - Jurassic to Cretaceous - Tertiary age. The allochthonous unit, or the pre-collisional Banda fore-arc sequence was overthrusted onto the NW Shelf sequence. The sediments overlying unconformably the allochthonous and para-autochthonous units are referred to as autochthonous units. These autochthonous units comprise sediments deposited post-Neogen collisional event between the Australian Continent and the Banda subduction zone. Structures develop in the eastern Seram are thrust, normal faults, folds, and cleavages. The thrusts are verging to the northeast suggesting that the deformation occurred before Seram was rotated in an E-W direction.</jats:p>