Volume 8, Issue 3, June 2019, Page: 190-204
Sedimentation Study of Sandstone Turbidite Sequence of Cinambo Formation in Maja Area, Majalengka, West Jawa – Indonesia
Yan Rizal, Geology Department, Institute of Technology Bandung, Bandung, Indonesia
Wahyu Dwijo Santoso, Geology Department, Institute of Technology Bandung, Bandung, Indonesia
Sapta Djanuismawan, Geology Department, Institute of Technology Bandung, Bandung, Indonesia
Alfend Rudyawan, Geology Department, Institute of Technology Bandung, Bandung, Indonesia
Affan Arif Nurfarhan, Geology Department, Sekolah Tinggi Teknologi Mineral Indonesia, Bandung, Indonesia
Received: May 21, 2019;       Accepted: Jun. 27, 2019;       Published: Jul. 10, 2019
DOI: 10.11648/j.earth.20190803.17      View  16      Downloads  8
Abstract
Administratively the study area is located in Maja Village which situated near the border of between Sumedang and Majalengka Regency, West Jawa – Indonesia. Geographically located at coordinates 108 ° 11'28 "- 108 ° 13'42" Longitude and 6 ° 51'28 "- 6 ° 55 '30 'Lattitude. In the study area the Formation Cinambo was widely distributed. Geological observation was conducted in Cirompoki River, Kadu River, and Cimaningtim River such as outcrops description and detail measuring section and rock sampling for granulometry as well as biostratigraphy analysis. The stratigraphy of Cinambo Formation is divided into Claystone-sandstone unit (facies D), Sandstone-mudstone units (facies C), Sandstone Unit (facies B) and Claystone units (facies E). This formation deposited in the mechanism of high density turbidite current. Plankton fossils showed that this formation was deposited in Middle Miocene to Early Pliocene (N11-N18) in upper bathyal environment. Integrated result of sediment profiles and granulometry showed that sedimentation of Cinambo Formation had characteristics which are: coarsening upward, etc. The vertical succession of Fm. Cinambo sandstone caused by current mechanisms of saltation, suspension, traction, that changed according to depositional environment. This formation was deposited in the outer part of submarine fan change until its middle part. Environmental change caused by influenced of eustacy in relative sea level drop.
Keywords
Turbidite, Fm. Cinambo, Granulometry, Eustacy
To cite this article
Yan Rizal, Wahyu Dwijo Santoso, Sapta Djanuismawan, Alfend Rudyawan, Affan Arif Nurfarhan, Sedimentation Study of Sandstone Turbidite Sequence of Cinambo Formation in Maja Area, Majalengka, West Jawa – Indonesia, Earth Sciences. Vol. 8, No. 3, 2019, pp. 190-204. doi: 10.11648/j.earth.20190803.17
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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