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Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Published by Kementerian Energi dan Sumber Daya Mineral
ISSN : 08539634     EISSN : 25494759     DOI : -
Core Subject : Science, Education, Social, Engineering,
Education Energy Engineering Environmental Science
Jurnal Geologi dan Sumberdaya Mineral (JGSM) is an Indonesian scientific journal published by the Center for Geological Survey, Geological Agency, Ministry of Energy and Mineral Resources. The journal receives Indonesian or English articles. Those articles are selected and reviewed by our professional editors and peer reviewers.
Arjuna Subject : -
Articles 341 Documents
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PERUBAHAN LINGKUNGAN PENGENDAPAN HUBUNGANNYA DENGAN TEKTONIK KUARTER (Studi Kasus Geologi Kuarter di Wilayah Dataran Rendah Aluvial Hingga Pantai Sepanjang Maron- Sikucingkrajan, Kec. Gemuruh, Kab. Kendal (Jawa Tengah) Poedjoprajitno, Soemantri; Moechtar, Herman; Hidayat, S.
Jurnal Geologi dan Sumberdaya Mineral Vol 19, No 2 (2009): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

Quaternary deposits of the alluvial plain to coastal plains in the Kec. Gemuruh, Kabupaten Kendal in the north-coast of Java (The Central Java Province) have been studied. The study was based on an analyses of geological surface and subsurface, especially of six boreholes information obtained along the North-South, and the penetration of the bore head varied from 2.80 to 6,65 m. These Quaternary deposits, can be devided into Members of Sandstone Damar Formation (Tpds), Damar Formation (Qtd), floodbasin and river channel deposits. Based on the correlation of the lateral and vertical variations of the deposition environment in the eastern part, the sediment accumulations were recognised which are related to fault activities. Whereas, the sediment accumulations in the western part influenced by normal fault. The tectonic activities which controlled the deposition processes were recorded as two stages. These were, (1)the activity of uplift fault obtained along the West to East, (2)the activity of uplift with direction West to East in the northern part followed by activity of normal fault towards almost North-South. Relative sea-level changes affect coastal-plain environment, they are influenced by local tectonic and global of sea-level changes. The tectonic activity also would cause shallowing and steepening of the depositional slope. Keywords : Quaternary sediments, tectonic, structure geology, sediment accumulation
MAGMATISME, SUMBERDAYA MINERAL DAN ENERGI DI TAPANULI SELATAN-SUMATERA UTARA Sulistyawan, Isnu Hajar; Harahap, Bhakti Hamonangan
Jurnal Geologi dan Sumberdaya Mineral Vol 23, No 3 (2013): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

The result of geological survey in Tapanuli Selatan indicates that there are a relationship between magmatism process and the possibility of mineral and energy occurences. Field observation and supported with laboratory analysis showing some mineral occurs in the area i.e. gold, base metal (Cu, Pb, Zn), zeolit, kaolin, andesitic lava dan tras. Multiple intrusions may control the occurrence of base metals and gold resources and the eruption of some volcanoes was producing another mineral resources. Resources of geothermal also found in Sipirok as another implication of volcanic process in Tapanuli Selatan area. It may related to the activity of Mount Sibualbuali in the past. Occurs as the effect of heat release from the magmatism process, hydrocarbon of Barumun Basin and some layers of coal has found in this area. High calori of coal was occurs in a thin layer of Sihapas Formation.Keywords : magmatism, resources, minerals, hydrocarbon, geothermal
HUBUNGAN ANTARKOMPONEN MIKROFASIES LERENG TERUMBU OAN CEKUNGAN LOKAL TERUMBU BELAKANG BATUGAMPING BIOKLASTIKA FORMASI BATURAJA 01 OAERAH SEKITAR MUARAOUA, SUMATERA SELATAN Maryanto, sigit
Jurnal Geologi dan Sumberdaya Mineral Vol 18, No 2 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

Bioclastic limestone of the Baturaja Formation cropping out in the Muaradua area, South Sumatera, is a good research object for microfacies analysis. Polarized microscopic study has revealed that the, bioclastic, limestones are predominantly reef-flank and local back-reef basin deposits. The results of T, F, and P tests of the limestones show a significant difference in their carbonate and terrigenous grains, as well as in their neomorphic materials between the deposits. On the other hand, their matrices, cements, and porosities are of no significant difference. Keywords: reef-flank, back-reef, carbonate grains, petrography
PERKEMBANGAN GEOLOGI DAN TEKTONIK PRATERSIER PADA MINTAKAT KUANTAN PEGUNUNGAN DUA BELAS DAN MINTAKAT GUMAI-GARBA, SUMATERA BAGIAN SELATAN Kusnama, Kusnama; Andi Mangga, Syahrir
Jurnal Geologi dan Sumberdaya Mineral Vol 17, No 6 (2007): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

The configuration of the pre-Tertiary tectonic and stratigraphic developments of the Southern Sumatera has been an interesting problem for many years.  Many geologists have used various concepts in solving the geological problem in order to reconstruct the geological setting of Sumatera and the related surrounding areas.The pre-Tertiary  basement in Sumatera  comprise allochtonous rocks consisting of many terrains which are composed of various lithologies of different age sand historical backgrounds   and they are separated each other by tectonic sutures.The Kuantan-Duabelas   Mountain Terrain is occupied by metamorphic, sedimentary and volcanic rocks of Paleozoic-Mesozoic (Carboniferous - Triassic) age and are intruded by the Mesozoic granitoid rocks.  The terrain occurred in the western part of Sumatera. Meanwhile, the Gumai-Garba   Terrain  which is occupied by the tectonite/ melanee,  metasediment,   carbonate  and  volcanic  rocks of Mesozoic (Jurassic  -  Cretaceous)   age are  intruded  by the  Late Cretaceous granitoid rocks. Keywords: pre-tertiary, tectonic, terrain, Southern Sumatera
SEJARAH PENIMBUNAN CEKUNGAN SUMATERA SELATAN DAN IMPLIKASINYA TERHADAP WAKTU GENERASI HIDROKARBON Panggabean, Hermes; Santy, Lauti Dwita
Jurnal Geologi dan Sumberdaya Mineral Vol 22, No 4 (2012): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

South Sumatra Basin is divided into four subbasins, that are Jambi Subbasin, Central Palembang Subbasin, North Palembang Subbasin, and South Palembang Subbasin. Clastic and carbonate sediments had filled the South Sumatra Basin during Eocene up to Quaternary times by various thickness of all rock units in each subbasin ranging from 2100 m to 3500 m. Those four subbasins have shown almost different maximum deep of burial history, that was started from 2900 m up to 5200 m. From burial of maximum depth by over 2000 m, several rock outcrop samples of the Talangakar Formation have evidently compacted, and grain particles as well as minerals of matrix have been proccessed by diagenesis realm. The lowest depth oil generation of the Lahat Formation is 1560 m in the Central Palembang Subbasin, while the deepest in the Talangakar Formation is 2700 in Jambi Subbasin and 2800 m in the South Palembang Subbasin. The timing of hydrocarbon generation has occurred between 20.6 mya (Early Miocene) and 3.38 mya (Late Pliocene). By studying detailed characters of sedimentary rocks filling each subbasin, thus the time of hydrocarbon generation can be known.Keyword : South Sumatra basin, burial history, hydrocarbon generation, Lahat Formation, and Talangakar Formation
STRUKTUR BAWAH PERMUKAAN DAERAH SEMARANG DAN SEKITARNYA DARI METODE GAYA BERAT DAN MAGNET Nainggolan, D.A
Jurnal Geologi dan Sumberdaya Mineral Vol 18, No 3 (2008): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

The result of gravity measurements in the studied area, which is mainly covered by volcanic rocks, have an anomaly valueranging from-13 to 44 mgal. Geologic and tectonical development of the area may still be active until recently(?). For this reason, The Geological Survey Institute conducted detailed gravity study to delineate this possibility moreaccurately.  The hydrocarbon reserve had ever been exploitated by the Dutch Government from  the Cipluk field, southern of Kendal city and already been closed in 1930.From this fact, other areas In the northen part of this Quadrangle is potential for the hydrocarbon resource. The southern part of Ungaran Mountain may also potensial for the geothermal resource. The qualitative analysis of the anomaly patterns, subsurface profile  models including the geological structures reflects the geological processes, tectonics and Its  relationship with natural resources. The qualitative analysis on residual and Bouguer anomalies indicates that the structures in the study area have mainly east –west and north south directions.                                       Keywords: gravity, magnet, Bouguer anomaly,structures,Semarang
Perubahan Lingkungan Endapan Kuarter di Daerah Manado dan Sekitarnya, Sulawesi Utara Santoso, Santoso
Jurnal Geologi dan Sumberdaya Mineral Vol 16, No 2 (2006): Jurnal Sumber Daya Geologi
Publisher : Pusat Survei Geologi

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Abstract

Based on nine data from subsurfaces, the development of specific Quaternary sediments in the studied area is controlled by facies of floodbasin (Fcb), beach to transitions/tidal (Fpps), swamp (Fr), channel river (Fas), volcanic eruption (Feg), volacanic eruption which is influenced by water (Fegm), beach (Fp), and nearshore (Fldp). Corelation of successions of facies reflects the deposition of palaeoenvironment that is able to be divided into three periods, characterized by transgression and regression events. The development of the palaeoenvironment of deposition indicates that the position of shoreline changed from time to time. Perhaps, this is the result of changes in the depositional regime which is closely related to tectonic events. Keywords: facies, deposition of paleoenvironment, sea surface, tectonic
TEKTONO-STRATIGRAFI BAGIAN TIMUR SULAWESI Panggabean, Hermes; Surono, Surono
Jurnal Geologi dan Sumberdaya Mineral Vol 21, No 5 (2011): Jurnal Sumber Daya Geologi
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Abstract

Basement rocks of eastern part of Sulawesi, from the East Arm to Southeast Arm, are composed of continental and ophiolite origins, which were collided in latest Oligocene – Middle Miocene. After collision, extention occurred in the area that formed a deepening basin in where Sulawesi Molasse was deposited. Some continental terranes distributed in the eastern Sulawesi, could be derived from northern magin of Australia, and the ophiolite was a part of the Pacific Ocean.Key words: ofiolite, continental terrane, collision and basin
Geologi Indonesia Bagian Barat dan Bagian Timur serta Kaitannya dengan Prospek Carbon Capture and Storage (CCS) Nugroho, Hadi; Bachri, Syaiful
Jurnal Geologi dan Sumberdaya Mineral Vol 16, No 3 (2015): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

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Abstract

Secara umum Indonesia bagian barat memiliki stabilitas tektonik lebih tinggi, dengan kerentanan yang lebih rendah terhadap bahaya gempabumi, khususnya di daerah Kalimantan, Jawa Bagian Utara-Barat, Sumatera bagian timur, serta kawasan di sebelah barat Kalimantan (Natuna dan sekitarnya). Penerapan teknologi EOR disarankan diterapkan di wilayah Indonesia Bagian Barat, khususnya di wilayah aman tersebut di atas, karena ketersediaan sumber emisi CO2 dari ladang-ladang migas yang relatif tinggi dan keberadaan sumur-sumur tua, sementara di Indonesia timur tidak tepat untuk program EOR karena emisi CO2 dari ladang-ladang migas terlalu kecil. Mineral trapping dapat dijadikan pilihan di masa akan datang di Indonesia Bagian Timur, mengingat banyaknya ketersediaan batuan ofiolit. Sementara penggunaan akifer dalam berair asin dapat diaplikasikan untuk menyimpan CO2 yang dihasilkan PLTU, baik di Indonesia Barat maupun Timur. Batuan waduk CBM dapat diterapkan di Kalimantan maupun Sumatera, sementara penggunaan waduk hidrat gas untuk menyimpan CO2 masih memerlukan penelitian lebih lanjut.Kata kunci - Indonesia Barat, Indonesia Timur, tektonik, gempa bumi, EOR, CCS.
FASIES KIPAS BAWAH LAUT PADA BATUAN BERUMUR PEREM-TRIAS, DAERAH KEKNENO, CEKUNGAN TIMOR Permana, Asep Kurnia; Prastian, A.H
Jurnal Geologi dan Sumberdaya Mineral Vol 14, No 4 (2013): Jurnal Geologi dan Sumberdaya Mineral
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Abstract

Cekungan Timor termasuk kedalam kategori semi mature yang memiliki potensi hidrokarbon, namun kompleksitas kondisi geologi dan banyaknya konsep yang berbeda-beda merupakan salah satu penyebab stratigrafi di cekungan ini sulit dimengerti. Penelitian stratigrafi rinci untuk mengidentifikasi fasies dan sub fasies lingkungan pada batuan berumur Perem-Trias dilakukan di daerah Kekneno, Nenas, Cekungan Timor untuk memberikan pandangan baru mengenai stratigrafi, sedimentologi dan fasies lingkungan pengendapan pada batuan berumur Perem-Trias di cekungan ini. Hasil analisis litofasies menunjukkan bahwa batuan yang berumur Perem di daerah Kekneno diendapkan pada fasies lereng bagian bawah sampai atas (lower to upper slope facies), sedangkan batuan berumur Trias umumnya diendapkan sebagai fasies sistem kipas luar (outer fan system facies), fasies paparan luar samping lereng atas (outer shelf to upper slope facies), fasies sistem kipas tengah (middle fan system facies), dan fasies sistem kipas dalam (inner fan system facies). Endapan-endapan alur (channel) dan pematang (levee) pada batuan berumur Trias berpotensi menjadi target play hidrokarbon.Kata Kunci: fasies, kipas bawah laut, batuan Perem-Trias, Cekungan Timor

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