Periode Deformasi Kenozoikum Kepulauan Aru, Cekungan Wokam, Maluku
DOI:
https://doi.org/10.33332/jgsm.geologi.v18i2.186Abstract
Research on structural geology to determine deformation periodes at the Aru Islands of Wokam Basin, Maluku have been done. Determaining the deformation periodes are approached by grouping the lineament structure and stress tensor analysis of bedding, joints, slicken side data which collected during fieldwork. The age of structural geology which formed at these area are reconstructed from stratigraphic relationship of deformed rocks. At Cenozoic, the deformation of Aru Islands, Maluku can be divided into three main periodes which have different characteristic and geological structures pattern. The first periode were started at Late Miocene where the Koba Formation had been deposited, the main stress direction was Northwest-Southeast and the stress tensor tend to pure strike-slip. The second periode occured after Manumbai Formation were deposited at Late Pleistocene, the main stress was extentional and yielded normal faults as fault reactivation. At B the third periode take place and generated North-South structural lineations.
Â
Keywords : deformation, Cenozoic, geological structures, Aru
Islands.
Downloads
References
Alda, Thiur., Kim Jae Ho., 2008. Tertiary Hydrocarbon Play in NW Arafura Shelf, OffshoreSouth Papua: Frontier Area in Eastern Indonesia.,Proceeding of Indonesian Petroleum Association32nd Annual Convention and Exhibition.
Amri, U., P.H. Wijaya, T. Hestirianoto., H.M. Manik., 2015. Bathimetry and Recent Sediments Profiles of North Aru Islands Offshore West Papua., Bulletin of Marine Geology., Vol. 30, No.2, 55-64.
Badan Geologi., 2009. Peta Cekungan Sedimen Indonesia Berdasarkan Data Gaya Berat dan Geologi.
Charlton, T. R., 2000. Tertiary evolution of the eastern Indonesia complex.Journal of Asian Earth Sciences, 18: 603-631.
Charlton, T. R., 2001. Permo-Triassic evolution of Gondwanan eastern Indonesia, and the final Mesozoic separation of SE Asia from Australia.Journal of Asian Earth Sciences, 19: 595-617.
Davies, H. L., 2012. The Geology of New Guinea-the cordilleran margin of the Australian Continent., Episodes, Vol. 5, No.1, 87-102.
Granath, J.W., ChristJ.M., Emmet,P.A., Dinkelman, M.G., 2010. Insight into the Tectonic of Eastern Indonesia from Arafuraspan, A Long-Offset A-Long Record 2D Seismic Reflection Data Set., Proceedingof Indonesian Petroleum Association34th Annual Convention and Exhibition.
Hall, R., 1995. Plate Tectonic Reconstructions of the Indonesian Region., Proceedingof Indonesian Petroleum Association 24th Annual Convention and Exhibition.
Hartono danRatman., 1992. PetaGeologiLembarAru, Maluku Tenggara skala 1:250.000., PusatSurveiGeologi, Bandung.
Padmawidjaya, T., Subagyo., 2014. Penelitian Gaya Berat dan Geomagnet Kepulauan Aru, Cekungan Wokam., Jurnal Geologi Kelautan, Vol. 12, No. 1, 1-14.
vanUfford, A. Q., Cloos, M., 2005. Cenozoic tectonics of New Guinea.American Association of Petroleum Geologists Bulletin, 89(1), 119–140.
Downloads
Published
Issue
Section
License
Authors who publish articles in Jurnal Geologi dan Sumberdaya Mineral (JGSM.Geologi) agree to the following terms:
- Authors retain copyright of the article and grant the journal right of first publication with the work simultaneously licensed under a CC-BY-NC or The Creative Commons Attribution–ShareAlike License.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
