Turbidite Fasies of Lower Penosogan Formation in Karanggayam Area, Kebumen, Indonesia

Yan Rizal, Wahyu Dwijo Santoso, Alfend Rudyawan, Romy Ari Setiaji, Eko Bayu Purwasatriya

Abstract


A continuous clastic sedimentary rock outcrop in the Karanggayam Area, Kebumen represents the complete deep marine fan facies of the Middle Miocene Lower Penosogan Formation. Lithology association and vertical succession were observed from a 63 meters detailed measured section along the Karanggayam River. This study aims to identify and classify the turbidite succession as well as the depositional environment of the formation within the North Serayu Basin, Central Java.     

From the bottom to top the Lower Penosogan Formation is divided into: A2, B2, C2, D2 and F2 facies which represents basin plain, overbank (levee and distal levee), crevasse splay, channel-fill and frontal splay facies respectively. Changes in the depositional environment are interpreted to be influenced by the dynamic changes in morphology and global climate change caused by underwater volcanic activity as a result of Middle Miocene tectonic activity. 


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DOI: https://doi.org/10.5539/mas.v12n6p124

Copyright (c) 2018 Yan Rizal

License URL: http://creativecommons.org/licenses/by/4.0

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