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All Journal Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Purna Sulastya Putra
Puslitbang Geoteknologi LIPI
Chemistry Earth & Planetary Sciences Energy

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Re-Interpretasi Formasi Kerek Di Daerah Klantung, Kendal, Berdasarkan Data Stratigrafi dan Foraminifera Purna Sulastya Putra; Praptisih Praptisih
Jurnal Geologi dan Sumberdaya Mineral Vol. 18 No. 2 (2017): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v18i2.272

Abstract

Rock unit crops out surrounding the Cipluk oil field is part of the Kerek Formation according to the regional geological map, however, the stratigraphy, depositional environment and relative age of the rock unit is not clearly recognised. Detailed stratigraphic and micropaleontological studies have been done in the rock unit surrounding the Cipluk of  oil field. The results show that the rock outcrops in the study area are composed by a repetition of marl intercalated by sandstones,identified as turbiditic facies part of a channel portion of supra fan lobe to outer fan that deposited in an upper bathyal. Based on planktonic foraminifera content, the relative age of rockunit is Pliocene to Late Pleistocene. According to the litological characteristics and relative age data, the rock unit in studied area seems to be not part of the Kerek Formation, but it belongs to part of the Kalibeng Formation. The result of this study is very important for updating the surface geological data in which will be very useful to understand the new petroleum system in this area. Keywords: Kerek Formation, Cipluk oil field, turbidite, Kalibeng Formation
Distribusi Foraminifera Bentonik Hidup dalam Hubungannya dengan Sedimen Dasar Laut di Selat Sumba, Nusa Tenggara Timur Purna Sulastya Putra; Septriono Hari Nugroho
Jurnal Geologi dan Sumberdaya Mineral Vol. 20 No. 1 (2019): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v20i1.382

Abstract

Marine geological survey of Ekspedisi Widya Nusantara (EWIN) LIPI 2016 was conducted by using RV Baruna Jaya VIII in the Sumba Waters from 4 to 26 August 2016. One of the aim of this survey is to understand the sea floor surface sediment characteristics and its influence to the benthic foraminifera distribution. Seven sediment samples were collected from sea floor surface in Sumba Strait, at the different location and depth using grabbing method with box corer. The samples have analyzed for the foraminifera content, sediment grain size, organic matter and carbonate content, and chemical element by XRF method. The living benthic foraminifera distribution increase to the east of the research area, which have higher content of the organic material and Fe, Rb, Zr, Zn and Sr elements in the sediment. The benthic foraminifera distribution most abundance founded at the depth of 800-1000 m with sediment types are sandy coarse silt  to sandy very coarse silt.Keywords: Benthic foraminifera, distribution, sea floor sediment, Sumba Strait. DOI: 10.33332/jgsm.2019.v20.1.17-26
Co-Authors Praptisih Praptisih Septriono Hari Nugroho