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All Journal Bulletin of Scientific Contribution : Geology BULLETIN OF THE MARINE GEOLOGY Buletin Sumber Daya Geologi JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Geosciences and Applied Geology
Nisa Nurul Ilmi
Fakultas Teknik Geologi Universitas Padjadjaran
Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science Other

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KARAKTERISTIK GEOKIMIA BATUAN INDUK FORMASI WALAT, SUKABUMI, JAWA BARAT Ilmi, Nisa Nurul; Ramadian, Aldrin
Buletin Sumber Daya Geologi Vol 13, No 1 (2018): Buletin Sumber Daya Geologi
Publisher : Buletin Sumber Daya Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (976.501 KB)

Abstract

Kajian karakteristik geokimia batuan induk Formasi Walat di Sukabumi, Jawa Barat merupakan suatu langkah untuk mendapatkan informasi mengenai sistem minyak dan gas bumi yang ada. Lebih lanjut lagi, kajian ini juga diharapkan dapat mengungkap kesamaan sistem minyak dan gas bumi di daerah studi, dengan potensi hidrokarbon terbukti di Cekungan Jawabarat Utara. Kekayaan material organik, tingkat kematangan, serta tipe hidrokarbon yang dihasilkan merupakan parameter penting yang menunjukkan karakter batuan induk secara geokimia. Sistematika  pemercontohan singkapan Formasi Walat yang diyakini berpotensi sebagai batuan induk, dianalisis ke laboratorium untuk penyelidikan karakteristik geokimia. Sebanyak tujuh belas percontoh terpilih, dan selanjutnya dianalisis karakter geokimianya melalui parameter Total Organic Carbon dan Rock Eval Pyrolysis (nilai S1, S2, dan S3 beserta turunannya).Berdasarkan tingkat kematangan, semua percontoh berada pada tingkatan matang hingga matang akhir dengan kualitas kerogen tipe III yang menghasilkan gas. Hasil penelitian menunjukkan bahwa Formasi Walat memiliki karakter batuan induk dengan kekayaan sedang hingga sangat baik, dan memiliki potensi untuk menghasilkan hidrokarbon jenis gas. Berdasarkan penemuan sumber batuan induk potensial di formasi ini, maka dapat dikatakan bahwa di daerah studi terdapat sistem minyak dan gas bumi yang setara dengan Cekungan Jawabarat Utara, sehingga eksplorasi migas pada wilayah selatan Jawa Barat menjadi menarik.    
Zonation of Marine Geological Environment of Wangi-wangi Island Waters and Adjacent Area Wakatobi Districs Southeast Celebes Province Agus Didit Haryanto; Yudi Darlan; Vijaya Isnaniawardhani; Nisa Nurul Ilmi
BULLETIN OF THE MARINE GEOLOGY Vol 33, No 1 (2018)
Publisher : Marine Geological Institute of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3150.509 KB) | DOI: 10.32693/bomg.33.1.2018.546

Abstract

Wakatobi is one of coastal and marine tourism destination in South–East Celebes Indonesia. Coastal and marine characteristics of this area is composed of diverse biota as the main tourism attraction. Unfortunately, increasing human needs and activities, particularly coral reefs exploitation for construction and other life aspect, endanger the sustainability of marine environment of Wakatobi and the surrounding area. The purpose of this study is to determine marine geology environmental zonation in Wangi–wangi– Kapota Islands, as a consideration for local government in monitoring and regulating the coastal area. The methods that were applied in this study are coastal characteristic mapping, sedimentology, and mineralogy analyses from 34 marine surface sediments. Marine surface sediments have been collected by Marine Geological Institute (MGI) team in 2014. The result indicates that coastal and marine characteristic of Wangi–wangi and Kapota are influenced by geological processes since Middle Miocene. The seafloor morphology is characterized by gentle slopes around coastline that is abruptly changed to very steep slopes seaward. In general, the surficial sediments consisted of biogenic sands that are distributed around coastlines and trapped within coral reefs. Coastal types of this area are generally white coral sand beaches, coral reef platforms, and notches. The area of Wangi–wangi and Kapota can be divided into 4 (four) environmental zone: Flat Plain (Zone I), Sandy Beach (Zone II), Limestone and Coral Reef (Zone III), and Sedimentary Flat (Zone IV). Zone IV in the centre area between Wangi–wangi and Kapota island is considered as the most vulnerable area due to both natural and anthropogenic factor. Keywords: zonation, seafloor morphology, tourism, Wangi–wangi–Wakatobi, Southeast Celebes ProvinceWakatobi adalah salah satu tujuan wisata pantai dan laut yang menarik dikunjungi di Sulawesi Tenggara, Indonesia. Karakteristik pantai dan laut daerah ini disusun oleh keragaman biota laut yang merupakan daya tarik bagi pariwisata. Sayangnya, seiring dengan berkembangnya aktifitas dan kebutuhan manusia, terutama meningkatnya eksploitasi pemanfaatan terumbu karang untuk konstruksi bangunan dan berbagai aspek kehidupan, mengancam kelestarian lingkungan alami Wakatobi dan sekitarnya. Oleh karena itu, penelitian ini dilakukan dengan tujuan untuk membuat zonasi lingkungan pantai dan sekitarnya di Pulau Wangi–wangi dan Kapota, sehingga bisa memberikan pertimbangan bagi pemerintah setempat dalam pengawasan dan regulasi lingkungan kawasan pantai dan sekitarnya. Untuk penelitian ini, metode yang dilakukan adalah pemetaan karakteristik pantai, analisis sedimentologi dan mineralogi yang dilakukan terhadap 34 sedimen permukaan dasar laut. Pengambilan sampel sedimen permukaan dasar laut telah dilakukan oleh Tim Pusat Penelitian dan Pengembangan Geologi Kelautan (P3GL) pada tahun 2014. Hasil penelitian menunjukkan bahwa karakteristik pantai dan laut Wangi–wangi dan Kapota dipengaruhi oleh proses geologi yang telah berlangsung sejak Miosen Tengah. Morfologi dasar laut dicirikan oleh lereng landai di sekitar tepi pantai dan berubah dengan tegas menjadi curam ke arah laut lepas. Pada umumnya tekstur sedimen permukaan dasar laut terdiri atas pasir biogenik tersebar di sekitar garis pantai, dan mengisi di dalam terumbu koral. Jenis pantai sebagian besar berupa pantai pasir koral berwarna putih, pedataran pantai terumbu koral, serta morfologi pantai berupa takik. Kawasan pantai Wangi–wangi dan Kapota bisa dibagi ke dalam 4 (empat) zonasi lingkungan: Flat Plain (Zona I), Sandy Beach (Zona II), Limestone and Coral Reef (Zona III), dan Sedimentary Flat (Zona IV). Zona IV di area tengah antara Pulau Wangi–wangi dan Pulau Kapota merupakan area yang paling rentan mengalami kerusakan lingkungan akibat faktor alami dan aktifitas manusia. Kata kunci: zonasi, morfologi dasar laut, wisata, Wangi–wangi–Wakatobi, Provinsi Sulawesi Tenggara
KARAKTERISTIK GEOKIMIA BATUAN INDUK FORMASI WALAT, SUKABUMI, JAWA BARAT Nisa Nurul Ilmi; Aldrin Ramadian
Buletin Sumber Daya Geologi Vol. 13 No. 1 (2018): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (976.501 KB) | DOI: 10.47599/bsdg.v13i1.60

Abstract

Kajian karakteristik geokimia batuan induk Formasi Walat di Sukabumi, Jawa Barat merupakan suatu langkah untuk mendapatkan informasi mengenai sistem minyak dan gas bumi yang ada. Lebih lanjut lagi, kajian ini juga diharapkan dapat mengungkap kesamaan sistem minyak dan gas bumi di daerah studi, dengan potensi hidrokarbon terbukti di Cekungan Jawabarat Utara. Kekayaan material organik, tingkat kematangan, serta tipe hidrokarbon yang dihasilkan merupakan parameter penting yang menunjukkan karakter batuan induk secara geokimia. Sistematika pemercontohan singkapan Formasi Walat yang diyakini berpotensi sebagai batuan induk, dianalisis ke laboratorium untuk penyelidikan karakteristik geokimia. Sebanyak tujuh belas percontoh terpilih, dan selanjutnya dianalisis karakter geokimianya melalui parameter Total Organic Carbon dan Rock Eval Pyrolysis (nilai S1, S2, dan S3 beserta turunannya). Berdasarkan tingkat kematangan, semua percontoh berada pada tingkatan matang hingga matang akhir dengan kualitas kerogen tipe III yang menghasilkan gas. Hasil penelitian menunjukkan bahwa Formasi Walat memiliki karakter batuan induk dengan kekayaan sedang hingga sangat baik, dan memiliki potensi untuk menghasilkan hidrokarbon jenis gas. Berdasarkan penemuan sumber batuan induk potensial di formasi ini, maka dapat dikatakan bahwa di daerah studi terdapat sistem minyak dan gas bumi yang setara dengan Cekungan Jawabarat Utara, sehingga eksplorasi migas pada wilayah selatan Jawa Barat menjadi menarik.
PEMANFAATAN LIMBAH SEKTOR PERTANIAN DEDAK PADI MENJADI RICE BRAN OIL SEBAGAI PENERAPAN SISTEM NIHIL LIMBAH DI DESA TALAGASARI Sakhia Mira Rosalina; Morin Azzahra; Siti Patimah Saidah; Fildza Ndarusasti Madarina; Ezra Khagi Himura; Murni Sulastri; Edy Sunardy; Nisa Nurul Ilmi
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 4 No 2 (2022): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v4i2.14325

Abstract

Pemanfaatan limbah sektor pertanian dedak padi menjadi rice bran oil adalah sebagai penerapan sistem nihil limbah di desa Talagasari. Limbah sektor pertanian yang dapat diolah dan dimanfaatkan pada desa Talagasari salah satunya yaitu hasil penggilingan padi yaitu dedak yang dapat dimanfaatkan sebagai minyak dedak atau rice bran oil.  Rice bran oil merupakan minyak yang didapatkan dari hasil ekstraksi menggunakan Soxhlet kemudian dievaporasi hingga menghasilkan air suling dan minyak sehingga mendapatkan minyak dedak. Minyak dedak memiliki peluang besar menjadi salah satu alternatif pengganti minyak sawit. Minyak dedak padi memiliki banyak manfaat dan kandungannya yang lebih sehat. Salah satu manfaat rice bran oil yaitu dapat mengurangi kolesterol, karena kandungan lemak jenuhnya sedikit dan cenderung lebih stabil. Tujuan penelitian pengolahan dedak padi menjadi rice bran oil selain untuk mengurangi limbah sektor pertanian sebagai penerapan sistem nihil limbah, pengolahan produk limbah pertanian sehingga limbah memiliki value sebagai sumber ekonomi baru bagi masyarakat. Maka dari itulah penelitian pengolahan dedak padi menjadi rice bran oil dilakukan oleh mahasiswa pada kegiatan KKN-PM integratif di vila Kadeudeuh, desa Talagasari, Kecamatan Kadungora, Kabupaten Garut, Jawa Barat.
Cekungan Kuarter Antar Pegunungan di Jawa Barat Edy Sunardi,; Iyan Haryanto; Andi Agus Nur; abdurokhim; Nisa Nurul Ilmi
Jurnal Geologi dan Sumberdaya Mineral Vol. 24 No. 3 (2023): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v24i3.751

Abstract

Geologi suatu daerah sebagai suatu model dapat mengalami perubahan secara konstruktif (refining), sejalan dengan munculnya gagasan-gagasan baru dalam sedimentasi, stratigrafi, tektonik dan evolusi cekungan, serta vulkanisme, didukung oleh berbagai jenis data baru yang lebih banyak dan lebih akurat. Suatu kolase elemen-elemen dasar yang disusun secara lokal dan dihubungkan satu dengan yang lain menurut kaidah yang dianut akan membentuk pengertian baru. Penelitian ini merupakan hasil pengamatan geologi lapangan ditunjang dengan pekerjaan studio, khususnya dalam interpretasi struktur geologi. Klasifikasi genetik terbentuknya cekungan Kuarter, selanjutnya dibangun dan mengacu juga kepada kontrol struktur terhadap penyebaran batuan vulkanik Kuarter dan gunugapi aktif di Jawa Barat. Atas dasar analisis, pembentukan cekungan pada area studi merupakan cekungan antar pegunungan di Jawa Barat, secara umum dapat dikelompokan menjadi: Anticlinal collapse basin, Half Grabben Basin, Flexure Subsidence Basin, Pull Apart Basin dan Paleovolcano Crater Kata kunci: Jawa Barat, Pembentukan cekungan, Tektonik, volkanisme
THE SINISTRAL STRIKE SLIP FAULT AS AMPANA BASIN CONTROLLER IN CENTRAL SULAWESI Saragih, Rahmat Yantono; Haryanto, Iyan; Sukiyah, Emi; Ilmi, Nisa Nurul; Sunardi, Edy
Journal of Geological Sciences and Applied Geology Vol 2, No 4 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i2.18289

Abstract

The presence of gas seepage born in Tanjungapi precisely in the southwestern part of the basin.This remission is supposed to be formed from main rocks of Mesozoic aged. The condition ofAmpana Basin formation cannot be separated from the effect of the relatively northeast-southeastsinistral strike-slip-fault. Based on the 43 outcrop, the main deformation product was identified asan extensional/hybrid joint with a relatively west-east fault line structure on average shear strain(η) = 58o (+) to (η) = 60o (+) and in form of the relatively northwest-southeast strike-slip-faultstructure line with the range of shear strains value between (η) = 45o (+) to (η) = 54o (+). Thekinematics movement of relatively vertical main stress gives a subsidence impact on the surfaceof Mesozoic-Paleogenic aged rock. The sedimentation process of Neogene-aged clastic, from theBongka Formation, Kingtom Formation, and Lonsio Formation ran fast and make the lowerMesozoic-Paleogene-aged rock being burdened by the upper younger rocks. The tectonicdevelopment in Ampana Basin is recorded in Lonsio Formation, Bongka Formation, and limestonein the form of structural indication and deformation showing the period of Central Miocene toHolocene tectonic with the relatively west-east direction of the main regional stress. Keywords: Ampana basin, deformation, strike slip fault, Sulawesi, Tanjungapi
LEAD IDENTIFICATION BASED ON SEISMIK 2D DATA, NORTH KABAENA SUB-BASIN, BONE BASIN, SOUTHERN SULAWESI Darwansyah, Fiqry; Sunardi, Edy; Ilmi, Nisa Nurul; Ginting, Agus Santa
Journal of Geological Sciences and Applied Geology Vol 2, No 6 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i6.20874

Abstract

The research was conduct in north Kabaena sub – basin in the middle of the Bone Bay and it is the result of tectonic development of Sulawesi since the early Miocene. Since early Miocene tectonic development creating spaces for the accommodation process of sedimentation in Bone Bay. The existence of a process of sedimentation in the Bone Bay allows the existence of oil and gas. As a contribution to the development of science and oil & gas industry in Indonesia, study of the north Kabaena sub – basin was conducted with seismic 2D and gravity anomalies. This study is aiming to find out potential area through the subsurface contour maps. This research start with the analysis of the fault on the 2D seismic interpretation and aided by gravity anomaly data, followed by horizon interpretation using tectonostratigraphy approach as a marker. Both interpretation is a material to make subsurface contour maps. Through this research, we identified 5 packs of rocks from old to young is unit X, unit A, unit B, and unit C&D, and we proposed a lead's which is at unit C with carbonate build up type.
Lithofacies And Depositional Environment Of Halang Formation On Part Of Cihikeu River Section, Majalengka, North Java Wijaya, Eric; Abdurrokhim, .; Helmi, Faisal; Ilmi, Nisa Nurul; Sunardi, Edy
Journal of Geological Sciences and Applied Geology Vol 2, No 1 (2017): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i1.13423

Abstract

AbstractThis study about lithofacies and depositional environment is located at Cihikeu River, Village Area of Mekarwangi Village, Bantarujeg District, Majalengka, West Java. Geographically, the research area is located at 60 56’ 11,7” latitude and 60 57’ 09,3” latitude and 1080 11’ 22,3” BT until 1080 12’ 20,3” BT. Based on Arjawinangun Geological Map (Djuri, 1995), the research area is located at Upper Parts of Halang Formation. This research show that the lithology that dominantly occur in the research area is sandstones, mudstones, and breccia.The methods that been used in this research are stratigraphics cross section measurements, lithofacies analysis, and based on secondary data which is paleontology analysis, it can be concluded that there are 8 lithofacies refers to the submarine facies classification by Stow, 1985 that occur in research area, which are facies A1-1, facies A1-3, facies B1-1, facies C2-2, facies C2-3, facies E1-1, facies E2-1, and facies F2-2. Based on the secondary data, the age of research area can be concluded into middle miocene to late miocene.Based on the lithofacies analysis, the lithofacies association concluded into 3 lithofacies association, which are FA-1, FA-2, and FA-3. From those lithofacies associaton characteristics, thereafter the depositional environment can be interpretated into 4 sub-depositional environments which are lower slope, upper fan, middle fan, and lower fan that refers to submarine depositional environments classification by Walker, 1984. Keywords : Lithofacies, Lithofacies association, Depositional environments, Submarine fan
SOURCE ROCK EVALUATION BASED ON GEOCHEMICAL DATA AND 1D BURIAL HISTORY MODELLING IN X BLOCK, SOUTH SUMATERA BASIN Dwi Putri, Tiara Intan; Pramudito, Dimas; Sendjaja, Yoga Andriana; Ilmi, Nisa Nurul
Journal of Geological Sciences and Applied Geology Vol 7, No 1 (2023): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v7i1.49020

Abstract

The study was conducted in the South Sumatra Basin using geochemical data consisting of three exploration wells to determine geochemical characteristics such as richness, quality, maturity, and the depositional environment of the source rock. Additionally, the study delved into the one-dimensional burial history of the study area. Subsequent phases of the research involved the analysis of three crude oil samples and three rock extract samples. This analytical process encompassed the utilization of gas chromatography (GC) and gas chromatography - mass spectrometry (GC-MS) data. By scrutinizing the biomarker parameters extracted through GC and GC-MS, the research sought to discern the specific characteristics of the depositional environment for each sample and establish a correlation between the source rock and the crude oil. Based on source rock evaluation, the three source rock wells are potential source rock. Based on biomarker analysis, TAN-1 and TAN-2 have an oxic terrestrial/fluvio-deltaic characteristics with a dominantly higher plant contributions. Samples RA-12, RA-17, and RA-61 have a suboxic – anoxic fluvio-deltaic characteristics with contributions of dominantly marine algae. The oil samples taken from these wells have a negative correlation with the source rock samples. Maturity analysis of the TAN-1, TAN-2, and TAN-3 wells is still in its immature phase based on one-dimensional burial history modeling.
STRUCTURAL GEOLOGY AND MAGMATISM/VOLCANISM ACTIVITY TOWARD GEOMORPHOLOGY IN BANDUNG BARAT-CIRANJANG, WEST JAVA Haryanto, Iyan; Ilmi, Nisa Nurul; Hutabarat, Johanes; Natasia, Nanda; Sunardi, Edy
Journal of Geological Sciences and Applied Geology Vol 3, No 3 (2019): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v3i3.25947

Abstract

Geomorphology along Ciranjang to Bandung Barat is dominated by structural hills while others are related to the magmatism/ volcanism activity. The others morphological features are plain land which belong to Ciranjang and Bandung depression. In interpreting geological structures, topography map and DEM were used together with field data particularly the landscape faulting indication and flow pattern. The compiled data of morphology, stratigraphy and landscape in the study area showed that the geomorphology of the area could be differ into several unit which are structural hill, non-structural hill, and plain morphology units. Sedimentary structural hill unit were develop in Rajamandala hills starting from the Cianjur-Bandung border, Solitary hills geomorphological unit developed in Cililin area, and the developed plain unit developed in Ciranjang and Cililin area
Co-Authors Abdurokhim Abdurokhim Abdurrokhim ⠀ Abdurrokhim, . Adhiperdana, Billy G. Adhiperdhana, Billy Gumelar Adjat Sudrajat Agus Didit Haryanto Ahmad Helman Hamdani, Ahmad Helman Aldrin Ramadian Andi Agus Nur Arifin, Alvin Adam Bumolo, Firman Ardiansyah Butarbutar, Elrey Fernando Carrisa, Dea Darmawan, Muhammad Farhan Darwansyah, Fiqry Dimas Pramudito Djadjang Jedi Setiadi Dwi Putri, Tiara Intan Edy Sunardi Edy Sunardi, Edy Sunardy Emi Sukiyah Eric Wijaya Ezra Khagi Himura Faisal Helmi Fauziely, Lili Fildza Ndarusasti Madarina GANI, REZA MOHAMMAD GANJAR Ginting, Agus Santa Haqiqie, Fauzan Aditya Heni Pujiastuti Husaeni, Ahmad Iyan Haryanto Iyan Haryanto, Iyan Johanes Hutabarat Morin Azzahra Murni Sulastri Nanda Natasia Pusparini, Widyatri Ramadian, Aldrin Sakhia Mira Rosalina Saputro, Anisa Ayu Saragih, Rahmat Yantono Sendjadja, Yoga Andriana Siti Patimah Saidah SYABAN, FARHAN TAUFIK Syaiful Alam Vijaya Isnaniawardhani Yoga Andriana Sendjaja, Yoga Andriana Yoza, Nizalia Azzahra Yudi Darlan