| Issue |
MATEC Web Conf.
Volume 101, 2017
Sriwijaya International Conference on Engineering, Science and Technology (SICEST 2016)
|
|
|---|---|---|
| Article Number | 04011 | |
| Number of page(s) | 6 | |
| Section | Applied Technology for Sustainable Environment | |
| DOI | https://doi.org/10.1051/matecconf/201710104011 | |
| Published online | 09 March 2017 | |
Olistostrome and the mesozoic tectonic of the bantimala complex, South Sulawesi
1 Geology Engineering Department Faculty of Engineering, Hasanuddin University, 90245 Makassar, Indonesia
2 Geology Engineering Department Faculty of Earth Science and Technology, Bandung Institute of Technology, 40116 Bandung, Indonesia
* Corresponding author: kaharuddin_geounhas@yahoo.com
The study aims to determine the presences and spreads of the olistostrome as one components of the tectonic complex of Bantimala area. The basement rocks of Bantimala area is a metamorphic rocks, which are unconformably overlain by Balangbaru Formation and radiolarian chert. Beneath in between cherts and basement rocks are presence breccia schists which give rise to various presumptions and interpretations of the environment and conditions of formation as submarine deposit, ideally cherts in the area underlain by oceanic crust.Schist breccias presence underneath of cherts in the Bantimala Complexes were suggested an olistostrome deposit. It was characterized by poorly sorting, unfoliated, shows deformed textures and composed olisthtolits which are embedded in sandy matrices, and in the cherts are presence layer sandstones and schist fragments. Olistostrome is sedimentary deposit as preserved in the trench, they will give us an interpretation that prior to formed cherts in the Bantimala area, initially tectonic subduction activity which are deforming and brecciation of the basement rocks subsequently as the constituent material of olistostrome.
© The Authors, published by EDP Sciences, 2017
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