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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 Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Journal of Geosciences and Applied Geology

Lia Jurnaliah

Fakultas Teknik Geologi, Universitas Padjadjaran

Author-ID : 2694976

Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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OSTRACODA MIOSEN DARI FORMASI CIMANDIRI, SUKABUMI, JAWA BARAT LILI FAUZIELLY; . Winantris; Lia Jurnaliah; . Solihin; Ria Fitriani
Bulletin of Scientific Contribution: GEOLOGY Vol 17, No 2 (2019): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

ABSTRAKLima belas spesies fosil ostracoda berumur Miosen dari Formasi Cimandiri telah dianalisis dari 6 conto sedimen yang berasal dari penampang stratigrafi lintasan S. Cimerang, Sukabumi. Analisis mikrofosil secara kuantitatif , memperlihatkan ostracoda Miosen tersebar pada litologi batulempung. Ostracoda yang melimpah pada lintasan ini adalah Hemicytheridea ornata, Cytherella hemipuncta, Hemicytheridea reticulata, Cytherelloidea excavata, Cyherella javaseanse, and Keijella carrirei.Berdasarkan kumpulan ostracoda, diketahui bahwa lingkungan pengendapan daerah penelitian adalah laut dangkal.Kata kunci: Ostracoda, Miosen, Cimandiri, Lingkungan Pengendapan, Batulempung.ABSTRACTFifteen species of fossil Ostracoda are describe from six sediment samples from Middle Miocene Cimandiri Formation, Sukabumi, West Java define from geological measure section profile Cimerang River. Microfossil Analysis based on quantitatively method, the distribution of Miocene Ostracoda be discovered in claystone lithology. Abundant ostracods are Hemicytheridea ornata, Cytherella hemipuncta, Hemicytheridea reticulata, Cytherelloidea excavata, Cyherella javaseanse, and Keijella carrirei. Based on the distribution of Ostracoda, it is known that the depositional environment of the study area is shallow sea.Keyword: Ostracoda, Miocene, Cimandiri, Depositional Environment, Claystone.

LINGKUNGAN PURBA FORMASI JATILUHUR BERDASARKAN KUMPULAN FOSIL FORAMINIFERA PADA DAERAH DESA JATILUHUR DAN SEKITARNYA, KECAMATAN JATILUHUR, KABUPATEN PURWAKARTA, JAWA BARAT Rodrigo Osvaldus; Lia Jurnaliah; Budi Muljana
Bulletin of Scientific Contribution: GEOLOGY Vol 19, No 1 (2021): 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.v19i1.33366

ABSTRACTThis research was conducted to determine environmental changes in the study area based on the abundance of foraminifera fossils and the lithology of the emerging rocks. The research area is in Jatiluhur District, Purwakarta Regency, West Java Province. Rock samples taken during the Advanced Geological Mapping activity were then used as a composite log, divided into 15 rock samples representing any changes in lithological characteristics. The number of small foraminifera fossils found from the 15 samples was 120,912 individuals with 75,840 individual planktonic foraminifera fossils and 45,072 individual benthonic foraminifera fossils. The abundance of small foraminifera fossils varies in number in each sample and the number is more abundant in the younger layers than in the older layers. The P / B ratio analysis was performed using a comparison calculation between planktonic and benthonic foraminifera. From the P / B ratio analysis, it was found that four bathymetric zones had occurred in the study area. From the results of the P / B ratio analysis and associated with rock lithology, it can be concluded that the environment of the study area is in a shallow sea where there have been several times of local deepening and silting of the water column. The analysis of environmental changes is strengthened by drawing the age which is determined based on the appearance of the fossil index in the layers. Referring to Bolli & Saunders (1985) and Boudagherfadel & Banner (1999), the results of this analysis indicate that the study area was deposited at an age not older than the Middle Miocene.Keywords: Foraminifera, Abundance, Environment, Lithology, Middle MioceneABSTRAKPenelitian ini dilakukan untuk mengetahui perubahan lingkungan pada daerah penelitian berdasarkan kelimpahan fosil foraminifera dan litologi batuan yang muncul. Daerah penelitian berada pada Kecamatan Jatiluhur, Kabupaten Purwakarta, Provinsi Jawa Barat. Sampel berupa batuan yang diambil ketika kegiatan Pemetaan Geologi Lanjut yang kemudian dijadikan sebuat composite log terbagi menjadi 15 perconto batuan mewakili setiap perubahan karakteristik litologi. Jumlah fosil foraminifera kecil yang ditemukan dari 15 sampel tersebut adalah 120.912 individu dengan fosil foraminifera planktonik 75.840 individu dan foraminifera bentonik 45.072 individu. Kelimpahan fosil foraminifera kecil bervariasi jumlahnya pada masing-masing sampel dan jumlah tersebut lebih melimpah pada lapisan yang lebih muda dibandingkan dengan lapisan yang lebih tua. Analisis P/B ratio dilakukan menggunakan perhitungan perbandingan antara foraminifera planktonik dan bentonik. Dari hasil analisis P/B ratio didapatkan empat zona batimetri pernah terjadi pada daerah penelitian. Dari hasil analisis P/B ratio dan dikaitkan dengan litologi batuan, dapat ditarik kesimpulan bahwa lingkungan dari daerah penelitian berada pada laut dangkal dimana terjadi beberapa kali pendalaman serta pendangkalan kolom air secara setempat. Analisis perubahan lingkungan diperkuat dengan penarikan umur yang ditentukan berdasarkan kemunculan indeks fosil pada lapisan. Mengacu pada Bolli & Saunders (1985) dan Boudagherfadel & Banner (1999), hasil analisis tersebut menunjukkan bahwa daerah penelitian diendapkan pada umur tidak lebih tua dari Miosen Tengah.Kata Kunci : Foraminifera, Kelimpahan, Lingkungan, Litologi batuan, Miosen Tengah.

LINGKUNGAN PENGENDAPAN FORMASI KALIBENG PADA KALA MIOSEN AKHIR DI KABUPATEN DEMAK DAN KABUPATEN SEMARANG, JAWA TENGAH BERDASARKAN RASIO FORAMINIFERA PLANGTONIK DAN BENTONIK (RASIO P/B) Lia Jurnaliah; Faizal Muhamadsyah; Mochammad Nursiyam Barkah
Bulletin of Scientific Contribution: GEOLOGY Vol 14, No 3 (2016): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Research area is classified a Lower Kalibeng Formation. Its age is Lower Miocene. The total number of sediment samples is 29 samples that are carried out based on measured section with 10 metres interval. The whole samples are processed by hydrogen peroxide method. Foraminifers’ quantitative analyses is conducted on each one gram of dry sample. Based on ratio P/B value that range between 49.64% - 99.41%, Late Miocene Kalibeng Formation is deposited on marine environment. The depositional process is beginning from neritic (outer neritic) – oceanic (upper bathyal-lower bathyal) – neritic (outer neritic) - oceanic (upper bathyal – lower bathyal). Keywords: Kalibeng Formation, plangtonic and benthic foraminifera, neritic, oceanic Daerah penelitian merupakan Formasi Kalibeng bagian bawah berumur Miosen Akhir.. Pengambilan 29 sampel sedimen dilakukan secara sistematis berdasarkan penampang terukur dengan interval 10 meter. Seluruh sampel sedimen diproses dengn menggunakan metoda hydrogen peroksida. Analisis kuantitatif foraminifera dilakukan pada setiap 1 gram sampel kering berukuran >120 mesh. Berdasarkan hasil perhitungan rasio foraminifera plangtonik dan bentonik (rasio P/B) yang berkisar antara 49,64% - 99,41%, Formasi Sungaibeng Kala Miosen Akhir terendapkan pada lingkungan marin dimulai dari neritik (neritik luar) – oseanik (batial bawah-batial atas) – neritik (neritik luar) dan terakhir adalah oseanik (batial bawah-batial atas). Kata Kunci: Formasi Kalibeng, foraminifera plangtonik dan bentonik, neritik, oseanik

DISTRIBUSI SUBMIKROFOSIL (POLEN DAN FORAMINIFERA) PADA DELTA FRONT DI DELTA MAHAKAM, KALIMANTAN TIMUR Lia Jurnaliah; Winantris -
Bulletin of Scientific Contribution: GEOLOGY 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 Lia Jurnaliah; . Winantris; Lili Fauzielly
Bulletin of Scientific Contribution: GEOLOGY 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

IKLIM PURBA FORMASI JATILUHUR BERDASARKAN KUMPULAN FOSIL FORAMINIFERA PLANKTONIK PADA DAERAH KECAMATAN JATILUHUR DAN SEKITARNYA, KABUPATEN PURWAKARTA, JAWA BARAT Theo Alfredo Ravandi; Lia Jurnaliah; . Winantris
Bulletin of Scientific Contribution: GEOLOGY Vol 19, No 1 (2021): 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.v19i1.31606

Keadaan iklim dalam periode waktu tertentu dalam skala waktu geologi disebut iklim purba, dapat diketahui melalui pengukuran proksi pada periode waktu tertentu. Distribusi yang terkontrol oleh perubahan temperatur permukaan laut menjadikan foraminifera planktonik sebagai proksi biologi yang cocok dalam menentukan iklim purba. Penelitian ini dilakukan karena belum ada penelitian mengenai iklim purba pada daerah penelitian, serta menurut penelitian terdahulu terdapat perubahan keberagaman kandungan fosil foraminifera planktonik yang kemungkinan terpengaruh oleh iklim saat pengendapan Formasi Jatiluhur pada Miosen Tengah. Sebanyak 18 sampel sedimen berasal dari 7 singkapan pada wilayah Kecamatan Jatiluhur, Kabupaten Purwakarta, Jawa Barat. Dilakukan rekonstruksi penampang geologi agar diketahui urutan sampel secara stratigrafi. Berdasarkan hasil preparasi sampel sedimen menggunakan metode mekanik dan kimia serta analisis kuantitatif, ditemukan 61 spesies foraminifera planktonik dengan total individu sebanyak 305.184. Kurva kelimpahan kelompok iklim, kurva kumulatif, dan kurva perubahan iklim dibuat bertujuan untuk menentukan zona iklim berdasarkan data kumpulan dan kelimpahan spesies foraminifera planktonik. Daerah penelitian terbagi menjadi 7 zona iklim, secara keseluruhan menunjukan Formasi Jatiluhur diendapkan pada kondisi iklim hangat dengan nilai kurva berkisar antara 13,02 hingga 50,35.

VARIASI KOMPOSISI DINDING CANGKANG FORAMINIFERA BENTONIK KECIL RESEN PERAIRAN SEMARANG (LEMBAR 1409), JAWA TENGAH Lia Jurnaliah -
Bulletin of Scientific Contribution: GEOLOGY Vol 11, No 1 (2013): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Foraminifera is a unicellular animal which has capability to form a test. Twenty samples of seafloor sediment Semarang waters are analyzed by using quantitative method. Every type of small benthic foraminifera test wall is counted. Based on foraminifera test wall analysis, there are 3 types of test wall: hyaline calcareous, porcelain calcareous, and agglutinin. The highest percentage of hyaline test is found in 24 meter, porcelain test is found in 37 meter, and agglutinin test is found in 51 meter. Hyaline test wall has the highest total individual, 140226 individual (59,45%). It shows that research area is shelf environment.

REKONSTRUKSI IKLIM PURBA KALA MIOSEN TENGAH HINGGA MIOSEN AKHIR BERDASARKAN DATA KUMPULAN FORAMINIFERA PLANKTONIK SUMUR-A1 PADA ZONA MANDALA REMBANG, CEKUNGAN JAWA TIMUR UTARA Evan Faiz Danendra; Lia Jurnaliah; . Winantris
Bulletin of Scientific Contribution: GEOLOGY Vol 20, No 1 (2022): Bulletins 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.v17i1.38715

Foraminifera merupakan organisme mikroskopis yang memiliki berbagai fungsi dalam studi mikropaleontologi dan biostratigrafi. Penelitian berfokus pada pemanfaatan foraminifera planktonik dalam merekonstruksi iklim purba dari Sumur-A1 pada Zona Mandala Rembang, Cekungan Jawa Timur Utara. Penelitian menggunakan 40 sampel hasil pengeboran yang berasal dari rentang titik kedalaman 168 hingga 1116 kaki. Perhitungan kuantitatif berdasarkan kelimpahan individu dilakukan terhadap sampel yang telah dipreparasi dengan metode mekanik dan kimiawi. Rekonstruksi iklim purba mengacu pada pengelompokkan spesies peciri iklim Indo-Pasifik kala Miosen Tengah hingga Miosen Akhir dan disajikan dalam grafik iklim Spezzaferri. Hasil penelitian mengungkapkan bahwa pada kala Miosen Tengah hingga Miosen Akhir, Zona Mandala Rembang, Cekungan Jawa Timur Utara, memiliki 8 zona iklim yang seluruhnya menunjukkan iklim hangat dengan indikasi penghangatan dan/atau penyejukan sebagai dampak dari peristiwa iklim global Middle Miocene Climate Transition (MMCT), semakin berkembangnya East Antarctic Ice Sheet (EAIS) dan semakin mendinginnya Antartika, serta Antarctic’s Thermal Isolation.

KERAGAMAN FORAMINIFERA BENTONIK KECIL RESEN PADA CORE-01 DI PERAIRAN JEPARA, PROVINSI JAWA TENGAH Siti Mulia Nurul Aswad; Lia Jurnaliah; winantris -
Bulletin of Scientific Contribution: GEOLOGY Vol 12, No 1 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Foraminifera live from shallow marine into deep marine. Environment itself has their own characteristic of foraminifera. Indonesia which is an archipelago country has highly foraminifer’s diversity. Research area is located in Jepara Water and is a part of Java Sea. Geographically, core-01 is lied on 05055’18.66” Latitudes and 110042’34.55” Longitudes. This research is done in order to know the diversity of recent small benthic foraminifera , so that, is there an environmental changes of core-01. Quantitative method is used on 12 sample sediment below sea floor with interval depth 50.00 – 50.55 meter. The identified recent small benthonic foraminifera are compound of 43 genera and 73 species. Based on research, there are changes of diversity genera, diversity species, and individual numbers of recent small benthic foraminifera. Those changes can be used as an indicator of vertically core-01 environmental changes.

PALEOEKOLOGI SATUAN BATULEMPUNG FORMASI JATILUHUR DAERAH CILEUNGSI , KECAMATAN CILEUNGSI, KABUPATEN BOGOR, JAWA BARAT Lia Jurnaliah -
Bulletin of Scientific Contribution: GEOLOGY Vol 4, No 1 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Claystone is composed of clay and carbonaceous sandstone. The relatively age of claystone is Lower Miocene (N8 Zone) – Middle Miocene (N9 Zone). Based on quantitative analysis of benthic foraminifer fossils from 10 samples on Cikarang river line, there are 31 species and 480 individuals, meanwhile, from 6 samples of Cilegok river line, are found 20 species and 348 individuals. Percentages of benthic foraminifer fossils on Cikarang River are 94,8% Rotaliina, 2,71% Textulariina, 2,71% Milioliina. Cilegok river has 98,28% Rotaliina, 0% Textulariina, 1,72% Miloliina.The interpretation of Paleoecology was done by using fossil assemblages, Diversity Index α Fisher and Triangular Plot Murray. Based on those methods, paleoecology of claystone of Jatiluhur Formation of Cileungsi area was Normal Marine Lagoons.

Co-Authors . Solihin A. Helman Hamdani Abdurrokhim ⠀ Adjat Sudradjat Adjat Sudrajat Budi Muljana Catur Purwanto Dedy Kurniadi Dhanu Elfitra Djadjang Jedi Setiadi Evan Faiz Danendra FADHILAH NUR RISMAYANA Faizal Muhamadsyah Hana Morina Ildrem Syafri Ildrem Syafri Kurnia Arfiansyah Fachrudin Lili Fauzielly LILI FAUZIELLY Luli Gustiantini Mochammad Nursiyam Barkah Mohamad Solihin MUHAMAD AGAM SUBAGJA Novianti Wahyuni Purasongka Rachman, Rizki Satria Rahmat Fakhrudin - Rani Izdihar Hanifah Reza Mohammad Ganjar Gani Ria Fitriani Ria Fitriani Ria Fitriany Rina Nurani Rina Zuraida Rodrigo Osvaldus Roebiyanto Kapid Roebyanto Kapid Sangmin Hyun Shaska R. Zulivandama Siti Mulia Nurul Aswad Swasty Aninda Piranti Syaiful Alam Syaiful Alam T. Y. Waliana Muda Iskandarsyah Theo Alfredo Ravandi Winantris Winantris Yoga Andriana Sendjadja Yuyun Yuniardi

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