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All Journal METAMORFOSA Journal of Biological Sciences Bionatura Bulletin of Scientific Contribution : Geology Indonesian Journal of Applied Sciences AL KAUNIYAH IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Geoscience Journal Jurnal Geocelebes Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) BULLETIN OF THE MARINE GEOLOGY Jurnal Geosains dan Teknologi Jambura Geoscience Review Indonesian Journal on Geoscience Indonesian Journal on Geoscience Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Geosciences and Applied Geology Scientific Contributions Oil and Gas

Winantris Winantris

Fakultas Teknik Geologi, Universitas Padjadjaran

Author-ID : 480688

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Public Health

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PALEOENVIRONMENT FORMASI LEMAU BENGKULU BERDASARKAN DATA PALINOLOGI Pangaribuan, Vallery Theresa; Winantris, .; Fauziely, Lili
Bulletin of Scientific Contribution Vol 21, No 1 (2023): 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.v21i1.44955

Lokasi penelitian berada di desa Sekalak, Kabupaten Seluma, Provinsi Bengkulu. Pada daerah ini terendapkan batubara yang termasuk salah satu produksi tambang PT. Bara Indah Lestari. Posisi sampel berada pada bagian bawah singkapan dengan sampel yang digunakan satu sampel dengan kode BIL 01 pada koordinat 102o 36' 55.07" Bujur Timur, 3o 56' 17.30” Lintang Selatan. Penelitian ini bertujuan untuk mengkaji lingkungan pengendapan purba dan umur relatif Formasi Lemau berdasarkan data palinologi. Formasi Lemau termasuk kedalam Lajur Bengkulu sebagai salah satu formasi penyusun Cekungan Bengkulu. Preparasi palinologi menggunakan metode hydrogen peroksida. Data palynomorph dikelompokkan menjadi lima jenis ekologi yaitu sebagai berikut Mangrove 6,8%, Backmangrove 4,9%, Freshwater peat swamp 75,7%, Riparian 0,7% dan Montane rain forest 11,9%. Polen mangrove cukup tinggi yang membuktikan bahwa daerah penelitian berada di garis pantai. Berdasarkan data palinomorf menunjukkan daerah penelitian diendapkan pada lingkungan mangrove. Fosil indeks umur relatif yang ditemukan terdiri dari Alnipollenites verus, Florschuetzia levipoli, Florschuetzia meridionalis dan Verrucatosporites usmensis yang menunjukkan umur relatif Miosen tengah.

KANDUNGAN MIKROFOSIL DALAM FORMASI PEMBAWA BATUBARA DARI DAERAH PERIAN KECAMATAN MUARA MUNTAI, KABUPATEN KUTAI KERTANEGARA, KALIMANTAN TIMUR -, Winantris; -, Ildrem Syafri; -, Rusman Rinawan
Bulletin of Scientific Contribution Vol 4, No 1 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The research uses two kinds of microfossils for an aim to produce more precision, which Palinomorph as a main object and foraminifera as the support object. Pollen analysis has the main role in paleo-environment reconstruction, based on ecological characteristics plants association. Using palinomorph and foraminifera together in one research can only be conducted through sediments transition. Coals are included in the category, where coal samples were taken from Sungai Perian near Pulaubalang-Pamaluan formation boundary.From four samples that were analyzed (1R / claystone, 3R / claystone, 5R / claystone carbonaceous, and 7R / claystone) 53 genera and only 5 foraminifera species was founded. Both microfossils have yielded the same interpretation. The relative ages of the pollen indicator are from Middle-Early Miocene, and the relative ages of the foraminifera are from Late-Early Miocene. Based on the palinomorph and foraminifera data the research area was on regressions environment during the geologic period mentioned.

PENGARUH TEKTONIK PADA LEMBAH SUNGAI CILIWUNG DENGAN PENGUKURAN GPS- RTK BERDASARKAN NILAI VALLEY-FLOOR RATIO (Vf) Witjahjati, Retno; Sukiyah, Emi; Winantris, .; Arya, Pulung P; Nugroho, Bani
Bulletin of Scientific Contribution Vol 16, No 2 (2018): 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.v16i2.18171

Most of Jakarta's Special Capital Region (DKI) has relatively flat topography covered by alluvial deposit. Alluvial deposit derives from rock deformation of volcanic activity in the south, and also coastal deposits at the north part. The upstream rivers located in hilly, mountainous terrain, as well as through sloping hills to the lower plains downstream. The relatively rapid flow velocity in the upstream forms the parallel pattern and the downstream are slowly forming a sub dendritic pattern until it empties into the Jakarta Bay. Ciliwung River is one of 13 rivers passing through DKI Jakarta.The morphology of DKI Jakarta area is formed by exogenous energy caused by highly intensive sedimentation and human activities. In addition, there is also endogenous energy to produce folds and fracture structures. The presence of endogenous power results from the convergence interaction between the Indian-Australian Ocean Plate and the Eurasian Plate.This research was conducted to find out the influence of endogenous power in the form of tectonic control on the pattern of landscape shape in DKI Jakarta. The manifestation of these endogenous influences can be seen in the morphological formation in the Ciliwung River. The method used is calculated of morphometry with a value of the VF - ratio (Valley Floor Ratio) from topographic measurement using GPS-RTK device (Global Position System - Real Times Kenematic). Measurements were made as many as 7 trajectories on the river banks in order to know the difference of elevation on the left and right side. Based on the calculation, the Vf value ranged from 1.65 to 3.47. Through these results, it can be concluded that the morphology of DKI Jakarta is controlled by tectonic process with medium category.

Penentuan Lingkungan Purba Berdasarkan Analisis Palinologi Pada Daerah Cihideung, Kabupaten Bandung Barat Provinsi Jawa Barat ISANJARINI, VISMAIA; Aulia, Suci; Winantris, .
Bulletin of Scientific Contribution 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.v18i3.29202

Studi palinologi dilakukan untuk menginterpretasi lingkungan purba pada daerah penelitian yang berada pada daerah Cihideung, Kebupaten Bandung Barat, Provinsi Jawa Barat. Penelitian ini bertujuan untuk studi kelimpahan polen spora yang ada pada daerah penelitian. Berdasarkan data didapati presentase lingkungan polen spora lowland 1.62% dan hanya pada kedalaman 84-85 cm, stream side 4.87% dan melimpah pada kedalaman 84-85 cm, swamp berjumlah 24.39% dan melimpah pada keadalaman 89-90 cm, freshwater 10.56% dan melimpah pada kedalaman 10-19 cm, forest 47.15% yang melimpah pada keadalaman 9-10 cm, dan montane 11.38% dan melimpah pada kedalaman 10-19 cm. Hasil ini menunjukan bahwa daerah penelitian dahulunya merupakan swamp yang kemudian mengalami pengangkatan karena dipengaruhi oleh sesar lembang dan terjadi aktivitas vulkanisme yang memengaruhinya yang menyebabkan lingkungan berubah menjadi forest. Hal ini sejalan dengan hasil kelimpahan polen spora forest sebesar 47% yang dicirikan oleh kelimpahan polen Podocarpus dan spora Lycopodium dan Dycranopteris.Kata Kunci: Lingkungan, Lembang, Podocarpus, Lycopodium, Dycranopteris

PALYNOSPORE PADA LAPISAN BATUBARA FORMASI BAYAH, RANGKASBITUNG Winantris, .
Bulletin of Scientific Contribution Vol 17, No 3 (2019): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Batubara Formasi Bayah hingga kini masih menjadi objek pertambangan rakyat. Anlaisis palynospore diambil dari batubara yang berada di Desa Sindang Ratu, Rangkas Bitung, Banten. Lokasi tersebut merupakan daerah penambangan rakyat. Berdasarkan referensi dinyatakan bahwa Formasi Bayah berada pada rentang umur Eosen hingga Oligosen, diendapkan pada lingkungan paralik. Penelitian ini bertujuan melakaukan verifikasi umur relatif formasi bayah dan lingkungan purba berdasarkan analisis palynospore. Pemisahan polen dan spora dari batubara dilakuakn dengan metode standar asam. Jenis polen penanda umur reltaif yang ditemukan meliputi Proxapertites operculatus, Proxapertites cursus, Polygalacidites clarus dan Verrucatusporites usmensis. Berdasarkan asosiasi taksa tersebut menunjukkan bahwa terbentuknya Formasi Bayah di lokasi penelitian pada Eosen akhir yang diendapkan di lingkuang rawa air tawar dengan penciri lingkungan didominasi Dicopopollis malesianus.

DISTRIBUSI SUBMIKROFOSIL (POLEN DAN FORAMINIFERA) PADA DELTA FRONT DI DELTA MAHAKAM, KALIMANTAN TIMUR Jurnaliah, Lia; -, Winantris
Bulletin of Scientific Contribution Vol 13, No 3 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

The Research area located in the Mahakam Delta, East Kalimantan. The object of research are submicrofossils (pollen and foraminifera) in recent sample sediment derived from the delta front of Mahakam Delta. The amount of sediment that is researched as much as 29 samples. The results of the quantitative analysis showed pollen assemblage consists of 24 species of palmae, 21 species of mangrove and 117 species of non-mangrove. The collection of foraminifera consists of 82 species of small benthonic foraminifera. Based on cluster analysis, pollen assemblage consists of seven biofacies i.e. palmae-non mangrove, non-mangrove A, palmae-mangrove-non mangrove A, palmae-mangrove-non mangrove B, mangrove-non mangrove, palmae, and non-mangrove B . Similarly, foraminifera consists of seven biofacies i.e. biofacies I (Inner Shelf), biofacies II (Coastal lagoon-InnerShelf), biofacies III (Coastal bay – Inner Shelf), biofacies IV (Coastal lagoon/Coastal bay-Inner Shelf), biofacies V (Open estuary/Coastal lagoon-Inner Shelf), biofacies VI (Coastal bay/Coastal lagoon-Inner Shelf) and biofacies VII (mangrove swamp (marsh). The distribution of pollen and foraminifera in delta front suggest that the southern region was more influenced by sea compared with the northern region, and the central region is affected by tidal currents.

METODE KUANTITATIF FORAMINIFERA KECIL DALAM PENENTUAN LINGKUNGAN Jurnaliah, Lia; Winantris, .; Fauzielly, Lili
Bulletin of Scientific Contribution Vol 15, No 3 (2017): Bulletin of Scientific Contribution:GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

ABSTRAKForaminifera adalah hewan uniseluler yang dapat berperan sebagai indikator lingkungan. Metode kuantitatif foraminifera merupakan salah satu cara dalam penentuan lingkungan, diantaranya adalah rasio foraminifera plangtonik dan bentonik (rasio P/B), Triangular plot Murray dan Indeks αFisher. Berdasarkan studi pustaka dan ulasan yang dilakukan terhadap ketiga metode tersebut dapat disimpulkan bahwa metode rasio P/B dapat digunakan dalam penentuan lingkungan laut dangkal dan laut dalam, tetapi tidak dapat digunakan untuk menentukan karakteristik ekologi dari lingkungannya. Sementara itu, Metode Triangular Plot Murray dan Indeks α Fisher dapat digunakan hanya terbatas pada penentuan lingkungan laut dangkal, tetapi dapat digunakan untuk menentukan karakteristik ekologi lingkungannnya. Kata Kunci: Foraminifera, rasio P/B, Triangular Plot Murray, Indeks α Fisher, lingkungan. ABSTRACTForaminifera is a unicellular animal can act as indicators of the environment. Quantitative methods foraminifera is one way in the determination of the environment, such as ratio of planktonic and benthonic foraminifera ratio (P/B ratio), triangular plot murray and the index α.Fisher. Based on the literature reviews of the third methods, it can be concluded that the ratio of P/B methods can be used in the determination of shallow marine and deep marine environment, but cannot be used to determine the characteristics ecology of its environment. On the other hand, method of Triangular Plot Murray and the index α Fisher can be used is limited to the determination of the shallow marine environments, but can be used to determine the characteristics ecology of its environment. Keywords: Foraminifera, ratio P/B, triangular plot murray, index α fisher, environment

ANALISIS LINGKUNGAN PENGENDAPAN PURBA BERDASARKAN BIOFASIES ANGGOTA TUF NAPALAN FORMASI PAMUTUAN Haitami, Riza Rohmatul; Fatih, Rayhan; Jurnaliah, Lia; Winantris, .
Bulletin of Scientific Contribution Vol 23, No 1 (2025): 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.v23i1.59691

Foraminifera merupakan organisme mikroskopik yang terdiri atas satu sel dan termasuk dalam filum Protista yang terbagi atas dua jenis yaitu foraminifera planktonik dan bentonik. Foraminifera bentonik kecil merupakan organisme yang dapat digunakan untuk merekonstruksi lingkungan purba dikarenakan cara hidupnya yang terbatas pada ekologi tertentu. Terdapat sepuluh sampel yang diambil dengan menggunakan metode acak pada singkapan permukaan litologi batugamping sisipan pasir Anggota Tuf Napalan Formasi Pamutuan. Analisis kluster menggunakan software SPSS digunakan untuk mengetahui biofasies daerah penelitian untuk selanjutnya dianalisis lebih lanjut dalam interpretasi lingkungan pengendapan purba. Penentuan lingkungan pengendapan purba dilakukan dengan menghitung dan interpretasi spesies-spesies foraminifera bentonik kecil yang mendominasi pada setiap biofasies. Daerah penelitian memiliki tujuh biofasies yang berkembang dengan lingkungan pengendapan purba umumnya yaitu transisi hingga laut dalam.Kata kunci: Foraminifera Bentonik Kecil, Pamutuan, Biofasies, Lingkungan Pengendapan

Bojongmanik Formation Sedimentation Mechanism in the Middle to Late Miocene (N9-N17) in the Rangkasbitung Basin Tety Syahrulyati; Vijaya Isnaniawardhani; Mega Fattima Rosana; Winantris Winantris
Scientific Contributions Oil and Gas Vol 43 No 3 (2020)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.43.3.551

The Rangkasbitung Basin, is a part of Banten Depression which was formed by a normal fault,Â and then fi lled by marine deposits. This research carried out to understand the sedimentation process of MiddleÂ Miocene Bojongmanik deposits, the age, paleoenvironment and lithology (sediment sequence). In this research,Â 55 samples were taken from the study area, approximately 595 km2. Measurement of the stratigraphic sectionÂ is carried out to determine the correlation both vertically and horizontally. The residue of dissolving peroxideÂ method was carried out during the samples preparation. Then genus and species of planktonic and benthonicÂ foraminifera were identifi ed and determined. The foraminifera analysis guide has been used to determine theÂ age and depositional environment. The sequences of Bojongmanik Formation were deposited in Middle to UpperÂ Miocene (N9 to N17). Based on the planktonic foraminifera distribution, the succession of each sequence can beÂ correlated. During Middle Miocene (N9 - N12), the lowest part of Bojongmanik Formation is deposited at 100m-200m and 100m-80m depth, while in the other site, the correlated sequence is recorded that deposited at 80m-20m depth (outer to edge of inner neritic facies). In late Middle Miocene (N13 - N14), the regression process wasÂ happened. Almost the succession was deposited on land, while in deep site, a less part of sediments was formedÂ as land facies but the most of it deposited as marine facies. In Upper Miocene (N 15 - N 17), the sedimentationÂ continued in the transitional to edge neritic in back mangrove to mangrove environmental setting (upper to lowerÂ delta plain), and in other sites the sediment is no longer formed. Based on distribution of benthonic foraminiferaÂ there are observed the biofacies changes laterally. In bathymetric of depositional environment maps it can beÂ depicted two higher paleoenvironmental sites (Cigudeg and Muncang highs) and two lower sites (Leuwiliang andÂ Jasinga basins).

PALEOTEMPERATUR KALA MIOSEN TENGAH BERDASARKAN ANALISIS KELIMPAHAN FORAMINIFERA PLANKTONIK PADA DAERAH CISANGKAL, KECAMATAN LANGKAPLANCAR, KABUPATEN PANGANDARAN, JAWA BARAT Pramudya, Rayhan Fatih; Haitami, Riza Rohmatul; Jurnaliah, Lia; Fauzielly, Lili; Winantris, .
Bulletin of Scientific Contribution Vol 23, No 3 (2025): 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.v23i3.59458

Dinamika kondisi suhu yang selalu berubah-ubah terjadi dari masa lampau hingga saat ini dan mempengaruhi keberadaan mikroorganisme laut seperti foraminifera. Lokasi penelitian yang secara administratif terletak pada daerah Cisangkal, Kecataman Langkaplancar, Kabupaten Pangandaran, Provinsi Jawa Barat, dengan koordinat 108°30’41,61’’ BT dan 7°36’17,10’’ LS sampai 8°30’40,48’’ BT dan 7°36’19,78’’ termasuk dalam Formasi Pamutuan memiliki potensi informasi yang banyak mengenai paleotemperatur berkenaan dengan foraminifera yang melimpah,Penelitian ini bertujuan untuk menentukan umur dan paleotemperatur. Melalui analisis kuantitatif diperoleh sebanyak 16.072 individu foraminifera planktonik dengan total 60 spesies yang didapatkan dari total 10 conto batuan yang ada dari satuan Anggota Tuff Napalan Formasi Pamutuan (Tmpt). Terdapat total 6192 individu spesies penciri temperatur hangat, 1896 individu temperatur sedang, dan 584 individu temperatur dingin. Melihat dari dominansi spesies penciri temperatur hangat pada daerah penelitian mengindikasikan bahwa paleotemperatur pada daerah tersebut masuk ke dalam kategori temperatur yang relatif hangat (>20°C).Kata Kunci : Foraminifera Planktonik, Formasi Pamutuan, Paleotemperatur

Co-Authors . Solihin, . ADI, GILANG PERWIRA Agustina Djafar Anita Galih Ringga Jayanti Arya, Pulung P Astriandhita, Karina Melias Aswan Aswan Bani Nugroho, Bani Budi Muljana Danendra, Evan Faiz Ellin Harlia Emi Sukiyah Erick Setiyabudi Fatih, Rayhan Faurine, Nurul Rizma Fauziely, Lili Fitriany, Ria Haitami, Riza Rohmatul Hanifah, Rani Izdihar Helman Hamdani Helman Hamdani, Helman Ifan Yoga Pratama Suharyogi Ildrem Syafri Iqbal, M. ISANJARINI, VISMAIA Karina Melias Astriandhita Katon Sena Lestari, Tiffany Hanik Lia Jurnaliah Lia Jurnaliah Lili Fauzielly Lili Fauzielly Lili Fauzielly M. Iqbal M. Iqbal Mega Fatimah Rosana Mega Fatimah Rosana Mega Fattima Rosana Nana Suwarna Nana Suwarna Nana Suwarna Nisa, Firda Aulya Nugrahanto, Kuntadi oktariani, Hanny Oktariani, Hanny Pangaribuan, Vallery Theresa Parikesit Parikesit Parikesit Parikesit Pramudya, Rayhan Fatih Praptisih Praptisih Praptisih, . Purna Sulastya Putra Purna Sulastya Putra, Purna Sulastya Rachman, Rizki Satria Rahajeng Ayu Permana Sari Rahajeng Ayu Permana Sari Rahardjo, AT. - Rahmola, Wiryadi Rizkiputra Raihanna Ayu Lestari, Raihanna Ayu Ratih Damayanti Ravandi, Theo Alfredo Ria Fitriani, Ria Rina Nurani, Rina Rizki Satria Rachman Rizki Satria Rachman Rizki Satria Rachman Rizki Satria Rachman Rosana, Mega Fattima Rumsih, . Rusman Rinawan -, Rusman Rinawan Sakilla Gia Mentari Siti Mulia Nurul Aswad, Siti Mulia Nurul Suwarna, Nana Syafri, I - Teti Syahrulyati, Teti Tety Syahrulyati Tiffany Hanik Lestari Unggul Prasetyo Wibowo Vijaya Isnaniawardhani Witjahjati, Retno Wiwik Handayani YOGA, KUNCARANINGRAT EDI Yudhicara -, Yudhicara

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