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All Journal Bulletin of Scientific Contribution : Geology AL KAUNIYAH Jurnal RISET Geologi dan Pertambangan Journal of Geoscience, Engineering, Environment, and Technology BULLETIN OF THE MARINE GEOLOGY Jambura Geoscience Review Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Geosciences and Applied Geology
Lia Jurnaliah
Fakultas Teknik Geologi, Universitas Padjadjaran
Religion Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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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

Abstract

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
Depositional Environment of the Late Miocene of Lemau Formation from Bengkulu Basin Based on Palynology in Seluma, Bengkulu, Indonesia Mentari, Sakilla Gia; Winantris; Jurnaliah, Lia; Anjani, Novita Iwa
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 4 (2025): JGEET Vol 10 No 04 : December (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.4.19568

Abstract

Indonesia has several sedimentary basins, one of which is the Bengkulu Basin. One of the rock formations that make up this basin is the Lemau Formation, which is of Middle-Late Miocene age. Determining the depositional environment can use pollen and spore fossils stored in rocks. In the Lemau Formation, very little has been done to determine the depositional environment using pollen and spores. This research aims to reconstruct the sedimentary environment of the Lemau Formation rocks in the Late Miocene. Analysis was carried out on ten rock samples from Seluma, Bengkulu, Indonesia. Data collection used the stratigraphic measurements method, and laboratory analysis used the hydrogen peroxide method. There were five changes in the depositional environment, starting from the mangrove environment in sample BIL 21. The shallow environment became back mangrove in sample BIL 22, shallowing again became a peat swamp environment in samples BIL 23-BIL 26, the flooded environment became mangrove in sample BIL 27 and shallowing returned to a freshwater environment in samples BIL 28-BIL 30. Determination of the Late Miocene age used the presence of the Stenochlaenidites papuanus index fossil found in sample BIL 21. This environmental change was possible due to tectonic activities on the island of Sumatra in the Late Miocene and global eustatic changes.
Co-Authors . Solihin, . A. Helman Hamdani, A. Helman Abdurrokhim ⠀ Adjat Sudradjat Adjat Sudrajat Amadeus, Marvel Samgar Anjani, Novita Iwa Budi Muljana Catur Purwanto Danendra, Evan Faiz Dedy Kurniadi Djadjang Jedi Setiadi Elfitra, Dhanu Fachrudin, Kurnia Arfiansyah Faizal Muhamadsyah, Faizal Fatih, Rayhan Fitriany, Ria Haitami, Riza Rohmatul Hana Morina, Hana Hanifah, Rani Izdihar Ildrem Syafri Iskandarsyah, T. Y. Waliana Muda Kapid, Roebiyanto Lili Fauzielly Luli Gustiantini Marfasran Hendrizan Mega Fatimah Rosana Mentari, Sakilla Gia Mochammad Nursiyam Barkah, Mochammad Nursiyam Mohamad Solihin, Mohamad Nancy Wahyuni Nisa Nurul Ilmi Nisa, Firda Aulya Novianti Wahyuni Purasongka, Novianti Wahyuni Nugraha, Cahya Nugrahanto, Kuntadi Osvaldus, Rodrigo Pramudya, Rayhan Fatih Rachman, Rizki Satria Rahmat Fakhrudin -, Rahmat Fakhrudin Ravandi, Theo Alfredo Reza Mohammad Ganjar Gani Ria Fitriani Ria Fitriani, Ria Rina Nurani, Rina Rina Zuraida RISMAYANA, FADHILAH NUR Roebyanto Kapid Rumsih, . Sakilla Gia Mentari Sangmin Hyun Sanusi, Winantris Sendjadja, Yoga Andriana Shaska R. Zulivandama Siti Mulia Nurul Aswad, Siti Mulia Nurul SUBAGJA, MUHAMAD AGAM Swasty Aninda Piranti Syaiful Alam Winantris Winantris Winantris Yuyun Yuniardi ⠀, Winantris