Oleh: F. Hasan Sidi;Parvita Siregar;Herman Darman

Abstraksi : ...

Oleh: Ike Bermana

Abstraksi : In order to determine the sedimentary processes affecting the growth of Cisanggarung delta, a remote sensing imagery study was performed utilizing some landsat imageries band 7 recorded in September 1993, 1995, and 1997 respectively. The interpretative analysis of landsat imagery as well as ...

Oleh: Buskamal;M. Tatang Djunaedi;Nur Hasjim

Abstraksi : Biostratigraphic study of Toraja Formation in Kalosi area was performed on detail stratigraphic traverses in Baraka Panjurak, Cake- Lebok and Pelali Salubarani and consisted of analyses on foraminifera, calcareous nanoplankton, and palinomorf. From those stratigraphic measurements in Baraka - ...

Oleh: Siti Umiyatun Choiriah;Rubiyanto Kapid

Abstraksi : A total of seventy samples have been taken from Late Miocene to Midle Pleistocene age of Kerek, Kalibeng and Klitik Formations respectively. The nannofossils analysis indicates that nannofossils diversity and abundance are high and abundant. A nannofossils biozonation has been ...

Oleh: Premonowati;Wahyu Budi Setyawan

Abstraksi : Tanjung Kodok area is situated in the north coast of East Java. In the area, a carbonate reef complex is exposed, which is a part of the stratotype of the Paciran formation. Result of this carbonate facies study indicated that the area exist of 4 carbonate facies, namely coralline algae packstone ...

Oleh: Premonowati;R.P. Koesoemadinata;Harsono Pringgoprawiro;Wahyoe Soepri

Abstraksi : An outcrop of Holocene reef has been found at Tanjung Kodok, on the north coast of East Java. This reef complex is a part of Paciran formation stratotype and the reef has been detail examined in order to fully understand its growth and coral community for that particular periods. Quantitative and ...

Oleh: Sri Indarto;M Safei S;Praptisih;Djoehanah

Abstraksi : The study of the sandstone member of the sandstone claystone unit from the Kembelangan Formation was carried out in Wamena, Irian Jaya. This paper shows how the specification of the sandstone member was carried out using petrographic analysis. The investigation and sampling were conducted from the ...

Oleh: R.P. Koesoemadinata';Srikanti I. Qivayanti;Asep H.P.Kesumayana

Abstraksi : Shale compaction profiles from about 100 wells from western Indonesia Tertiary basins have been constructed from sonic logs, using Raiga-Clemenceau equation for calculating shale porosities. This equation is much better suited than the Wyllie's equation, as it accounts for high porosity values ...

Oleh: Sanggam Hutabarat

Abstraksi : This study was performed in order to characterize factors that have decreased the quality of sandstone reservoirs. Various analytical methods have been applied to this study, including sedimentology, petrography, petrophysics and regression analysis. There are around 170 feet of cores for the ...

Oleh: Sri Mulyaningsih;Sampurno;Sutikno Bronto;Budi Brahmantyo

Abstraksi : On 8-10 century, there was the Old Mataram Kingdom era at Central Java around of the Merapi volcano. Merapi volcano is an active volcanic and her activities are varying for along period. The finding of buried temples proves activities of Merapi volcano. Van Bemmelen mentioned that "Merapi Mount on ...

Oleh: Wahyu Budi Setyawan

Abstraksi : Modern sands of Kali Boyong-Code and Kali Oyo in Yogyakarta region are, respectively, derived from Gunung Merapi activities and erosion products of lithostratigraphy units of Pegunungan Selatan that composed of mainly volcanic rocks and carbonate rocks units. Tectonic provenance interpretation ...

Oleh: Iwan G Tejakusuma

Abstraksi : Microprobe analysis has revealed the geochemical characteristics of Beachlands Tephras. The analysis proved the tephras are silicic (>74.39 % SiO2). The occurrence of five tephra beds within the Beachlands area are confirmed by this analysis. Five populations, which show five different tephra beds, ...

Oleh: Sabardi Musliki

Abstraksi : Since the 1870s, the onshore area of the Northeast Java Basin has been explored based on the traditional stratigraphic concept. Drilling near seepages were performed and finally discovered the Kuti Gununganyar oil field (1888) and Lidah oil field (1889) near Surabaya, Ledok oil field (1893) and ...

Oleh: M. Johannes PK

Abstraksi : The Middle Miocene Ngrayong sand member of Tawun Formation in Well-X, Kawengan oil field, can be divided into 7 (seven) parasequence sets based on EMI log interpretation and the outcrop studies. The interesting fact is that the highstand system tract (bioclastic obbitoidal grainstone facies) has ...

Oleh: Yudi Darlan;Agus Gunadi Ismail;Agus Setyanto

Abstraksi : The grain size distribution of gediments relates to the availability of different sizes of particles in the correlative parent material and the energy of the processes active in the depositional environment, particularly the competency of the flow. The data set of surficial sediments, with a help ...

Oleh: Eko Yulianto;Sri Yudawati Cahyarini

Abstraksi : Digital mapping of Quaternary coastal terraces in Southeast Asia has been successfully conducted. The resulting map is intended to be one of the tools to reconstruct the main controlling factors on Quaternary terraces construction. Those factors are eustacy, tectonic and the interplay between those ...

Oleh: Budianto Toha;Karsani Aulia;Hari Primadi

Abstraksi : High resolution sequence stratigraphy of the Minas Oil Field is now being incorporated in the subsurface work process. Cores and well-logs data reveal that the LOSF Phase-1 and its surrounding areas can be used as a model to illustrate the application of high resolution sequence stratigraphy for ...

Oleh: D. Setiady;L. Arifin;K. Budiono;D. Rostyati

Abstraksi : Bathymetric map can be used to estimate shoaling problem of shipline in a bay mouth of Labuan, Lombok Area. The depth of the sea floor at the badmouth can reach up to 2 meters during high tide and 0.5 meter during low tide, leading to difficulties of big ships to pass. At the fish harbour, shoaling ...