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All Journal Bulletin of Scientific Contribution : Geology

Aton Patonah

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Author-ID : 2694766

Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Environmental Science

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SISTEM PANAS BUMI DAERAH KALAWAT, KABUPATEN MINAHASA UTARA, PROVINSI SULAWESI UTARA Riza Asyari Yamin; Aton Patonah; Adi Hardiyono; Muhammad Nur Hadi
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 1 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Kalwat Geothermal Field administratively is located in North Minahasa District, North Sulawesi Province. Litologies of this research area divided by pyroclastic flows and lava. The heat source of this location comes from Mahawu Mountain that located in the southwest outside the research area. Lithology which acts as the cap rock layer is form by pyroclastic flow that has clay minerals which impermeable. Based on petrographic and PIMA abalysis, the alteration minerals that arise are dominated bu montmorillonite and halloysite, so the alteration type of this research area is argilic type and located at the northwest and southwest of research area. The water type that appears are dilute chloride-bicarbonate type and bicarbonate type. Based on the calculation of paleotemperature and geothermometer, there is increase of temperature during the form of mineral and the recent temperature. This is due to increased of volcanic activity in the research area. This research area is water-dominated and moderate temperature system that has range of temperature at 209-2100 C.

ALTERASI MINERALISASI GRANODIORIT CIHARA DAN SEKITARNYA, KABUPATEN LEBAK, BANTEN Aton Patonah; Haryadi Permana; Vendi Hakim Ar Rosyid; Taufik Ramadhan
Bulletin of Scientific Contribution: GEOLOGY Vol 18, No 3 (2020): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc geology.v18i3.30930

Penambangan emas di Cihara dan sekitarnya yang dilakukan oleh masyarakat setempat menarik untuk diteliti, karena keberadaan emas semakin berkurang, khususnya pada granodiorit, Ketika dilakukan penambangan semakin dalam. Tujuan penelitian ini adalah untuk mengidentifikasi karakteristik alterasi dan mineralisasi serta tipe endapan dengan pendekatan observasi lapangan dan analisis laboratorium, yaitu petrografi, mineragrafi dan AAS. Hasil menunjukkan bahwa alterasi di daerah penelitian dibagi menjadi 3 (tiga) zona; (1) zona serisit – klorit – epidot – kuarsa – karbonat (2) zona kuarsa – karbonat – klorit – serisit - biotit (3) zona klorit – karbonat – kuarsa – serisit. Lebih lanjut lagi, mineralisasi yang tersingkap di daerah ini didominasi oleh pirit, sfalerit, galena, sebagian kecil hadir mineral kalkopirit, kovelit dan emas. Logam dasar umumnya terdapat pada urat kuarsa bersama dengan emas; sementara pada granodiorit (disseminasi), jumlahnya berkurang. Hal ini ditunjukkan dengan data hasil assay bahwa kadar logam dasar dan emas relatif lebih tinggi pada urat kuarsa dibandingkan pada tekstur disseminasi. Berdasarkan data – data tersebut, jenis endapan di daerah tersebut memiliki kemiripan dengan endapan porfiri yang berasosiasi dengan karbonat – logam dasar.

KARAKTERISTIK BATUAN METAMORF BAYAH di DESA CIGABER, KABUPATEN LEBAK, PROVINSI BANTEN Aton Patonah; Ildrem Syafri
Bulletin of Scientific Contribution: GEOLOGY Vol 12, No 2 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Metamorphic rocks in Bayah Complex included by Bayah mountain zone. Purpose of this research is to know characteristic of this rock with using petrography methods, that is, identify texture, structure, mineral contain, and metamorphic facies of the rocks. The result showed that kind of the rock is dominated by biotite schist, some actinolite schist, hornblend schist and chlorite schist. Almost all them have retrograde metamorphism, is characterized by biotite altered to chlorite and muscovite, hornblende to actinolite, and actinolite to chlorite. This proses probably associated by uplift processes in Eocene – Oligocene.

SISTEM PANASBUMI BERDASARKAN ANALISIS GEOKIMIA AIR PANAS DAERAH AMOHOLA DAN SUMBERSARI, KECAMATAN MORAMO, KABUPATEN KONAWE SELATAN, PROVINSI SULAWESI TENGGARA Fitriani Dewi Aprilia; Euis Tintin Yuningsih; Aton Patonah; Yuano Rezky; Anna Yushantarti; Asep Nurdin
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 1 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The research area is located in Amohola and Sumbersari, Moramo sub-district, Konawe South regency, Southeast Sulawesi Province. Geographically located between 122°35’6,07" – 122°45'58,94" BT dan 4°5'20,28" – 4°16'10,85" LS. The research areas have a stratigraphy consisted of Meta-limestones, Phylite, Schist, Quartzite, Conglomerates, Limestones, Carbonate Sandstone, Claystone, and sediment surface. Hot waters have temperatures ranging from 37,5oC to 50oC. The fluid geochemical data affirm that the Amohola area has Chloride type of water, which indicates it is close to the heat source, whereas in Sumbersari area has Bicarbonate water type, which indicates that the fluid has affected by meteoric water. Geothermal system in these two areas assumed that has separated by tectonic activity and the emersion of the lithology affected the chemical content of the hot fluid. The Geotermometer indicates that the subsurface of Amohola manifestations temperatures are around 146°C (medium enthalpy), whereas in Sumbersari 43°C (low enthalpy).

BASEMENT KOMPLEK BAYAH, KABUPATEN LEBAK, PROPINSI BANTEN Aton Patonah; Faisal Helmi; Jodi Prakoso; Taufiq Widiaputra
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 3 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Researching metamorphic rocks in Bayah and in its surrounding area has slight data so it has not been clear yet how the stratigraphic position, the age and the metamorphic rocks characteristic is in the study area. By using geological mapping and petrographic method, it showed that the metamorphic rock is believed to be the basement of Bayah complex which accreted because of reverse fault in the northwest so that the rock appeared together with the relatively younger rocks in the south (Bayah Formation and Granodiorite Cihara). These rocks showed that there are foliation, boudinage and crenulation structure consisting of various types of metamorphic rocks which are different in degrees of metamorphism (low grade – high grade metamorphism) and in protoliths as well, so these interpret as a result of orogenic processes of intermediate pressure metamorphism.

LINGKUNGAN PEMBENTUKAN DAN DIAGENESIS BATUGAMPING DAERAH KEMANG BARU DAN SEKITARNYA, KABUPATEN SIJUNJUNG Aton Patonah; Vijaya Isnaniawardhani
Bulletin of Scientific Contribution: GEOLOGY Vol 12, No 1 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Carbonate rock is one of reservoir rock types in petroleum. It is interesting to study because its special characteristic, that is, it can change so easily that will affect to quality and quantity of reservoir. This research has been done at Kemang Baru area and around, Sijunjung Distric. Purposes of this research are to know texture and composition characteristic and to know what kind of environment deposition and diagenesis process involved as long as the formation. To get the information about that, petrography and Palinology methods are used. The result of this research shows that only 37 samples of carbonate type from 69 samples which have been analized. These are wackestone and mudstone. They have been formed at low energy environment and in reduction process which is characterized by present of pyrite in the rocks. To support the data, result of Palinology analysis, the rock have contained Dicolpopollis sp., Margocolporites sp., Palmaepollenites sp. and Psilatricolpites sp, berasosiasi dengan Acrostichum sp., Detloidospora sp., Hyphae sp., Inaperturisporites sp., Laevigatosporites sp., Verrucatosporites sp. Based on these, the rocks were formed at deep Lake.

Co-Authors Adi Hardiyono Anna Yushantarti Asep Nurdin Euis Tintin Yuningsih Faisal Helmi Fitriani Dewi Aprilia Haryadi Permana Ildrem Syafri Jodi Prakoso Muhammad Nur Hadi Riza Asyari Yamin Taufik Ramadhan Taufiq Widiaputra Vendi Hakim Ar Rosyid Vijaya Isnaniawardhani Yuano Rezky

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