Various metamorphic rocks are exposed in the central part of Indonesia, including islands Java, Kalimantan and Sulawesi. Metamorphic complexes, regarded as products Cretaceous subduction Indonesia outcrop Central South Kalimantan, The lithology these locations is predominantly composed high-pressure rocks. Moreover, metatonalite Schwaner Mountains West Kalimantan. This study describes geochemical character to consider original rock composition ascertain their relationship tectonic...

http://dx.doi.org/10.17014/ijog.vol3no3.20082Kaligarang Fault which cuts across Semarang City in a north-south direction has been activated for long periods. During Tertiary time, the Kaligarang experienced dextral wrench movement, was triggered by tectonic activity during that with maximum principal stress (σ 1) northeast - southwest direction. While on Quaternary this fault reactivated as sinistral fault. Reactivation of caused 2) north east south last

Oil that produced in a petroleum system must have specific characteristics depend on the source rocks. These are able to be understood by analyses of organic geochemistry. Gas Chromatography - Mass Spectrometry (GC-MS) is very accurate tool for determining oil and gas. This research shows evidence samples taken from Bula Block Oseil Block, Seram Island same source. Keywords: system, geochemistry, Bula, Oseil,

Abstract The Triassic aged sandstone from Kanikeh Formation, are spread across Seram, Kesui and Teor Island. formation has been known as excellent source rock, however, reservoir characteristics of this unknown. This paper aimed at the diagenetic influence on was investigated for Carnian-Norian sequence in Eastern Seram. study comprises two methods which petrographic analysis Scanning Electron Microscope-Energy Dispersive Spectrometer (SEM-EDS). shows sandstones Carnian Seram lithic wacke,...

The study area is located in Kutawaringin village, about 3.5 kilometers from Soreang city, the capital of district, Bandung regency. purpose this research to show fault control on that influence distribution pattern quartz veins and epithermal gold mineralization. Methodology initiated by literatur study. All data are compiled as overlaying maps determine next step activities. Structural observations include macroscopic mesoscopic. Results analyses form structural geological map, main...

By the mid-second millennium A.D., Indonesians were already familiar with iron tools. One of Indonesia’s main centers production is Lake Matano area in hinterland East Luwu, South Sulawesi, eastern Indonesia, renowned for its nickeliferous ore. Research conducted during 2016-2022 succeeded documenting a submerged village remnants an processing industry dating to late first A.D. In this article, we describe second site associated iron, which included forged implements. Occupation at site,...

The Miocene sedimentary rocks in Samarinda area constrains organic rich sediments, which are considered as a good source hydrocarbon the East Kutai Sub-Basin, Kalimantan. high material content within sediments is related to dynamics of depositional environment deltaic setting. accumulation and characteristics matter this may be influenced by multiple factors, under complex physical-chemical processes. Geochemical data major trace elements obtained for total 309 outcrop samples from four...

Batupasir Formasi Kanikeh yang berumur Carnian-Norian, tersebar dari Maluku hingga Tenggara. terendapkan pada lingkungan transisi dan karakter reservoir formasi ini masih belum banyak diungkap. Studi fokus terhadap pengaruh diagenesis karakteristik sikuen batupasir Carnian-Norian di Daerah Seram Bagian Timur, Maluku. Metode digunakan adalah pengamatan petrografi Scanning Electron Microscope-Energy Dispersive Spectrometer (SEM-EDS). Hasil menunjukkan Timur didominasi oleh lithic wacke,...

Microfacies and diagenetic aspects of limestones in the South Central Timor, East Nusa Tenggara have studied to investigate deposition mechanism rocks history geological process after deposition. The cropped out research area includes into four rock units, are Aitutu Formation from Triassic, Nakfunu Early Cretaceous, Menu Late Ofu Paleogene. Limestone petrography analysis been done on eighteen samples Formation, fourty two nineteen seven Formation. Based study mikrofasies diagenesis that has...

In this study, we apply organic geochemistry analysis for evaluating source rocks in Gunung Bayan Areas, West Kutai Basin. Subject of research are Oligocene fine-grained sedimentary Pamaluan Formation on Areas. The Oligosen rock consists shale, siltstone and claystone. includes pyrolysis data as total carbon(TOC%), generating potential (S2), production index (PI), oxygen hydrogen indices(OI, HI) (T max ). results show that the have poor into good quality with type III kerogen true capability...

Lava basalt berstruktur bantal tersingkap di Sungai Metan, Baun, Timor, yang termasuk dalam anggota batuan gunung api Formasi Manamas. Penelitian geokimia dilakukan menggunakan metode analisis XRF dan ICP-MS menunjukkan memiliki karakteristik subalkalin, bersifat tholeitik terbentuk pada busur gunungapi akibat penunjaman Lempeng Samudera Hindia bawah Busur Banda berumur Miosen-Pliosen. Basalt subalkali Metan pengayaan unsur logam large ion lithophile (LILE) dipengaruhi fluida, ditunjukkan...

This paper provides the carbonate rocks facies model of Wainukendi Formation. Several outcrops are well exposed in Southern part Supiori Island. The main data taken from 28 and 25 measured sections. Thirty seven samples Korido dan Warvey Sections were collected have been petrographic examination for microfacies analysis. Finally, analysis find that Formation basically composed by bioclastic platform reef margin platform. Microfacies indicate these platforms consist 4 zone, deep shelf (FZ2),...

Summary Seram Basin is a petroliferous basin in Eastern Indonesia with complex geological setting. The crude oils have been known to be originated from Triassic marine carbonate source rock that composed by type II organic matter. However, could divided into several organofacies will expel oil distinctive character. Therefore, the depositional environment of probable comprehensively studied and organofacies. This study found biomarkers are sensitive facies change Basin, which ratio C24/C23...

Geologi wilayah Timor bagian barat berasal dari tiga mintakat yaitu Mintakat Benua Australia, Busur Banda dan batuan yang terendapkan setempat. Pengambilan analisis conto di Sungai Fatu Kompleks Mutis serta tambahan data sekunder Metan, Pulau Atauro hasil Deep Sea Drilling Project (DSDP) bertujuan untuk mengetahui asal berdasarkan geokimia gunungapi implikasi tektoniknya. Metodologi digunakan adalah X-ray fluorescence (XRF) Inductively Coupled Plasma–Mass Spectrometry (ICP-MS) unsur utama,...

The Embaluh-Rajang Group in Bhayangkara region had suffered polyphase deformation. Regional fold shown Landsat Imagery exhibit at least three periodes of deformation on the study area. first D1 main principal stress (s11) was directed relatively to east-west and resulted regional folds north-south direction. second D2 (s12) northwest-southeast formed northeast-southwest trending folds. third D3 (s13) east northeast-west southwest local north northwest-south southeast Faults occurred area...

abstract: By the mid-second millennium a.d., Indonesians were already familiar with iron tools. One of Indonesia's main centers production is Lake Matano area in hinterland East Luwu, South Sulawesi, eastern Indonesia, renowned for its nickeliferous ore. Research conducted during 2016–2022 succeeded documenting a submerged village remnants an processing industry dating to late first a.d. In this article, we describe second site associated iron, which included forged implements. Occupation at...