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All Journal Bulletin of Scientific Contribution : Geology Jurnal Akuatika IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Geoscience Journal Jurnal Geocelebes BULLETIN OF THE MARINE GEOLOGY Jurnal Pengabdian Pada Masyarakat Spektra: Jurnal Fisika dan Aplikasinya Buletin Sumber Daya Geologi Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal on Geoscience Indonesian Journal on Geoscience Jurnal Perspektif Pembiayaan dan Pembangunan Daerah Journal of Geosciences and Applied Geology

Vijaya Isnaniawardhani

Universitas Padjadjaran

Author-ID : 289813

Aerospace Engineering Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Other

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Sosialisasi Pengendalian Hama Terpadu di Desa Cintaratu Kecamatan Parigi Kabupaten Pangandaran Sudarjat Sudarjat; Syariful Mubarok; Vijaya Isnaniawardhani; Muhammad Abdilah Hasan Qonit
Jurnal Pengabdian Pada Masyarakat Vol 5 No 3 (2020)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/002.202053.323

SOCIALIZATION OF INTEGRATED PEST MANAGEMENT IN CINTARATU VILLAGE, PARIGI DISTRICT, PANGANDARAN REGENCY. Dragon fruit plant is one of the plants that can be planted in unproductive areas such as in Pangandaran Regency, West Java Province. The problem faced in the cultivation of dragon fruit plants in the area is the high potential for pest attack. Efforts can be made to overcome these problems by increasing the insight and expertise of rural villagers through recovery both materially and in demonstration plot practices. The purpose of this activity is to increase farmers' insight into information on pests and diseases in dragon fruit plants and its integrated handling technology. This activity was carried out in Cintaratu Village, Parigi District, Pangandaran District with an active participatory method in the form of counseling on pest attacks on dragon fruit plants as well as integrated pest management technologies on dragon fruit plants. This program has succeeded in informing about pest attacks and integrated handling technologies on dragon fruit plants in coastal areas. This success was shown based on the responses of enthusiastic extension participants and their interest in applying the technology to the cultivation of dragon fruit plants that they manage. The results of this activity can be seen in the increase in yields from the dragon orchards managed by local residents.

GEOPHYSICAL FORENSIC FOR ARCHAEOLOGICAL EXPLORATION IN MUAROJAMBI, INDONESIA Bambang Sugiarto; Dicky Muslim; Iyan Haryanto; Zufialdi Zakaria; Emy Sukiyah; Vijaya Isnaniawardhani; Achmad Djumarma Wirakusumah; Heryadi Rachmat
Spektra: Jurnal Fisika dan Aplikasinya Vol 5 No 3 (2020): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 5 Issue 3, December 2020
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.053.06

In July 2011, archaeological exploration tried to apply the physics method for the first time in Muarojambi, Indonesia. We combined physics with geosciences and called it geophysical forensic. Our method is known as Ground Penetrating Radar (GPR). GPR used high-frequency electromagnetic (EM) waves between 10-3000 MHz to imaging subsurface based on dielectric permittivity’s physical parameters. Changes in the electrical properties, rock magnetism, and water content of the material under the surface will provide a response recorded on the radargram as a function of distance to time (two-way travel time). Data processing performs to reduce the noise recorded when collecting data. We have successfully obtained four GPR lines; three lines gathered near Gumpung Temple and one line at Telago Rajo Pool. The GPR method succeeded in giving a subsurface image and possibility of the archaeological objects near the Gumpung Temple and Telago Rajo Pool.

PENENTUAN KAWASAN PERTAMBANGAN BERBASIS SEKTOR KOMODITAS UNGGULAN SUMBERDAYA NIKEL KABUPATEN KONAWE DAN KONAWE UTARA PROVINSI SULAWESI TENGGARA Iwan Nursahan; Vijaya Isnaniawardhani; Nana Sulaksana
Buletin Sumber Daya Geologi Vol. 8 No. 2 (2013): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Kabupaten Konawe dan Kabupaten Konawe Utara merupakan bagian dari Kawasan Strategis Nasional (KSN) Soroako dan sekitarnya, yang dicanangkan sebagai wilayah dengan komoditi unggulan pertambangan nikel. Penentuan kawasan pertambangan berbasis komoditi unggulansumberdaya nikel ini menggunakan pendekatan Satuan Genetika Wilayah (SGW) dan memanfaatkan Teknologi Sistem Informasi Geografis (SIG).Valuasi matrik holistik SGW menghasilkan 204 nilai SGW di Kabupaten Konawe dan 248 nilai SGW di Kabupaten Konawe Utara. Valuasi matrik holistik tersebut, menunjukkan adanya keterkaitan aspek potensi dan kendala wilayah terhadap total nilai valuasi SGW. Berdasarkan valuasi SGW dan analisis SWOT kawasan pertambangan prioritas I, maka dapat direkomendasikan bahwa SGW Pedataran Patahan Batuan Ultramafik daerah Langikima dan Wiwirano serta SGW Pedataran Batuan Ultramafik daerah Asera, Andowia, Wiwirano dan Molawe sebagai Kawasan Andalan Pertambangan Nikel, dengan total sumberdaya sekitar 1,14 Milyar Ton, dan nilai valuasi skenario dikembangkan/ditambang berkisar 248 hingga 298.

FASIES PENGENDAPAN BATUBARA SEAM X25 FORMASI BALIKPAPAN BERDASARKAN LOG INSIDE CASING DI DAERAH SEPARI, KABUPATEN KUTAI KARTANEGARA, PROVINSI KALIMANTAN TIMUR Dany Margaesa; Vijaya Isnaniawardhani; Undang Mardiana
Buletin Sumber Daya Geologi Vol. 8 No. 3 (2013): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Cekungan Kutai terletak di Kalimantan Timur menyimpan banyak kandungan sumber daya alam yang melimpah, seperti endapan batubara. Daerah penelitian secara geologi termasuk ke dalam Formasi Balikpapan yang dicirikan oleh keterdapatan litologi batupasir lepas (loose sand). Penggunaan Log Inside Casing merupakan salah satu solusi terbaik dalam pengambilan data well logging di Formasi Balikpapan ini untuk mengatasi beberapa kendala, seperti runtuhnya lubang bor dalam batuan sedimen lepas. Dengan metode Log Inside Casing ternyata terjadi penurunan kualitas pembacaan log sekitar 50% terutama pada Log Density. Namun demikian Log Gamma Ray masih sangat baik digunakan dalam interpretasi tekstur batuan sedimen sehingga suksesi sedimen dapat dipelajari sebagai aplikasi dari elektrofasies.Batubara seam X25 dibedakan menjadi dua fasies berbeda dan diendapkan pada lingkungan Transitional Lower Delta Plain yang dicirikan oleh pola fasies crevasse splay, channel, levee dan interdistributary bay berdasarkan model Horne (1978). Penelitian ini dapat mengkoreksi korelasi litostratigrafi dan perhitungan sumberdaya batubara berdasarkan genesa batubaranya secara tepat, akurat dan ilmiah.

The geothermal potentials for electric development in Maluku Province Vijaya Isnaniawardhani; Emi Sukiyah; Adjat Sudradjat; Martha Magdalena Nanlohy
Jurnal Perspektif Pembiayaan dan Pembangunan Daerah Vol. 5 No. 3 (2018): Jurnal Perspektif Pembiayaan dan Pembangunan Daerah
Publisher : Program Magister Ilmu Ekonomi Pascasarjana Universitas Jambi

The characteristic of small to medium size islands is the limited amount of natural resources for electric generation. Presently the needs of energy in Maluku Province are supplied by the diesel generation units. The electricity distributes through an isolated grid system of each island. There are 10 separate systems in Maluku Province, namely Ambon, Namlea, Tual, Saumlaki, Mako, Piru, Bula, Masohi, Dobo and Langgur. From the geothermal point of view, this condition is suitable because the nature of the generation is small to medium and the locations are dispersed. The geological condition of Maluku Province is conducive for the formation of geothermal resources. The advanced utilization of geothermal energy in Maluku Province is in Tulehu located about 8 kilometers NE of Ambon. It is expected that 60 MW electric will be produced at the first stage in 2019. A total of 100 MW resources were estimated. Other places of geothermal potentials are Lauke and Tawen both located in Ambon Island with the potentials of 25 MW respectively. In Oma Haruku, Saparua and Nusa Laut the geothermal potentials were estimated to be 25 MW each. The total amount of geothermal energy in Maluku Province is thus, 225 MW which will contribute significantly to the needs of projected 184 MW in the year 2025.

The geologic potentials of Riau Islands Province and its development design Emi Sukiyah; Vijaya Isnaniawardhani; Adjat Sudradjat; Fery Erawan
Jurnal Perspektif Pembiayaan dan Pembangunan Daerah Vol. 5 No. 3 (2018): Jurnal Perspektif Pembiayaan dan Pembangunan Daerah
Publisher : Program Magister Ilmu Ekonomi Pascasarjana Universitas Jambi

Geologically Riau Islands is located in the topography of the old stadium erosion. The morphology is characterized by smooth hills with convex slopes and alluvial plain consisting of the erosion products. The morphology exhibits the remnants of peneplain that submerged at ca 13,000 BP now forming Sunda Shelf with the average depth of 120 meters. The irregular coast’s line of almost all the islands in Riau Islands characterized the submerged old morphologic stadium. The lithology consists of granites and metasediments. Granites contain various types of economic minerals. The weathered granites produce bauxite, kaolin and quartz sands. The metasediments are generally soft resulting in the formation of valleys suitable for agriculture and settlements due to the availability of surface and subsurface water. Irregular coastal line provides the bays for harbors. The geological potentials to be developed therefore consists of the provision of stable plain and resistance to landslide and earthquake, the bays suitable for various marine industries, granites for building materials, and base metals. The submarine hydrocarbon basins produce oil and gas. Geologically Riau Islands is very unique because it represents the remnants of the peneplain of Jurassic and Cretaceous age of about 63 to 181 years old now becoming the Sunda shelf which is the largest in the world. This region is very good when developed as an industrial area, trade, and marine tourism Keywords: Riau Islands, geologic potentials, granites, submerge, marine tourism

Middle Eocene Nannofossil Assemblages Responding to Depositional Dynamics of the Elat Formation, Maluku Ratih C. F. Ratumanan; Vijaya Isnaniawardhani; Budi Muljana
JURNAL GEOCELEBES Vol. 7 No. 2: October 2023
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v7i2.25371

The Kei Besar Island is mainly composed of the Elat Formation carbonate rocks. This research was conducted to determine the nannofossils assemblages in the Elat Formation to interpret the depositional dynamics during its formation. Lithological observations and sampling for nannofossil analysis were carried out on three measured stratigraphic sections: Section 1 - Hollat, Section 2 - Ngurdu, and Section 3 - Mata Hollat. A total of 47 species assigned to 25 genera of nannofossils were identified in 45 selected samples. The succession of the Elat Formation in the study area formed at NP16 to N17 or Middle Eocene. Stratigraphic reconstruction supported by biostratigraphy analysis shows that Section 3 at the lower (NP16 to NP 17), Section 2 in the middle part (NP 17), and Section 1 at the upper (NP 17). R-mode cluster analysis of nannofossils defined four species clusters (assemblies A, B, C and D) that tend to occur together. Q-mode cluster analysis defined five depth-distribution clusters (1, 2, 3, 4, and 5), each deposited under similar conditions. Based on large foraminifera, the succession was formed in fore reef setting in neritic bathymetric zone. Coarsening and thickening upward supported by the nannofossil assemblages indicate depositional dynamics which tend to be shallower. Reworked fossils, commonly found at the lower of the Elat Formation, show the mechanism of turbid currents in early deposition.

THE SALT POTENTIALS IN INDONESIA Sukiyah, Emi; Isnaniawardhani, Vijaya; Sudradjat, Adjat; Muhamadsyah, Faisal
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.v2i1.13419

Abstract The salt deposits are unevenly distributed in the world. The most productive countries are China, USA and India. Indonesia experiences the salt deficit, due to the limited number of the deposits. The evaluation of the characteristics of salt deposit in the world reveals the Pre Tertiary association in semi closed marine environmental deposition. The geological condition in Indonesia does not favor such environment, therefore the salt deposits unlikely to occur. The saline solution in mud volcanoes in northern part of Java Island however indicates the possible saline deposits in Tertiary Kalibeng Formation with the thickness of approximatelly 3.000 meters. The saline seepages most probably have continuously been taking place since early Pleistocene or about a million years ago. The saline seepages in northern part of East Java might extend to thebottom of Madura Strait and enrich the salinity of the sea in the strait. The semi closed configuration of the strait contributes to the accumulation of salt. It is therefore suggested to expand the evaporating pools for salt production, among others by the reclamation of the shallow offshore area in the southern part of the island. Keywords: salt deficit, mud volcano, saline solution, enrich the salinity, solar evaporating pools

ANALISIS FASIES DAN PETROFISIKA FORMASI TALANG AKAR SUB-CEKUNGAN JAMBI SUMATERA SELATAN Vijaya Isnaniawardhani,Yusi Firmansyah, Andriansyah Permana, Faisal Helmi,
Geoscience Journal Vol 2, No 1 (2018): Padjadjaran Geoscience Journal
Publisher : Unpad

Pada penelitian ini digunakan data well logging dari tiga sumur eksplorasi di daerah Sub-cekungan Jambi, Sumatera Selatan. Tujuan penelitian ini untuk mengetahui lingkungan pengendapan Formasi Talang Akar sehingga dapat mengetahui gambaran kualitas dari reservoir berdasarkan karakteritik tekstur pada lingkungan pengendapan hasil analisis fasies yang kemudian dibuktikan dengan data petrofisikanya sebagai data kuantitatif reservoir tersebut. Untuk penentuan lingkungan pengendapan dilakukan analisis fasies dari elektrofasies dan lithofasies. Dari elektrofasies diperoleh bentuk kurva log gamma ray Bloky,Bloky Serrated, Funnel, Funnel Serrated, Bell, dan Bell Serrated. Kemudian diperoleh juga lithofasies yang pada umumnya pada bagian bawah setiap sumur tersusun atas batupasir konglomratik sampai batupasir sangat kasar dan pada bagian atas tersusun atas batulempung dengan keterdapatan lapisan batubara dan batugamping sebagai sisipan. Berdasarkan analisis tersebut ditentukan lingkungan pengendapan pada Formasi Talang Akar yaitu berada pada lingkungan darat (fluvial) sampai transisi (estuarine). Analisis kuantitatif berupa perhitungan petrofisika ini dilakukan dengan bantuan perangkat lunak, dalam perhitungan volume shale rumus yang digunakan adalah rumus linear, perhitungan porositas dan saturasi air menggunakan metode Dual Water, dan perhitungan permeabilitas digunakan rumus Timur. Hasil petrofisika ini menunjukan adanya reservoir pada Formasi Talang Akar dengan porositas dan permeabilitas baik-istimewa.Kata Kunci : Lingkungan pengendapan, Reservoir, Formasi Talang Akar

LINGKUNGAN PEMBENTUKAN DAN DIAGENESIS BATUGAMPING DAERAH KEMANG BARU DAN SEKITARNYA, KABUPATEN SIJUNJUNG Patonah, Aton; Isnaniawardhani, Vijaya
Bulletin of Scientific Contribution Vol 12, No 1 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Carbonate rock is one of reservoir rock types in petroleum. It is interesting to study because its special characteristic, that is, it can change so easily that will affect to quality and quantity of reservoir. This research has been done at Kemang Baru area and around, Sijunjung Distric. Purposes of this research are to know texture and composition characteristic and to know what kind of environment deposition and diagenesis process involved as long as the formation. To get the information about that, petrography and Palinology methods are used. The result of this research shows that only 37 samples of carbonate type from 69 samples which have been analized. These are wackestone and mudstone. They have been formed at low energy environment and in reduction process which is characterized by present of pyrite in the rocks. To support the data, result of Palinology analysis, the rock have contained Dicolpopollis sp., Margocolporites sp., Palmaepollenites sp. and Psilatricolpites sp, berasosiasi dengan Acrostichum sp., Detloidospora sp., Hyphae sp., Inaperturisporites sp., Laevigatosporites sp., Verrucatosporites sp. Based on these, the rocks were formed at deep Lake.

Co-Authors Abdullah, Chalid Ilham Abdurrokhim ⠀ Abdurrokhim, . Achmad Djumarma Wirakusumah Adi Hardiyono, Adi Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudrajat Agus Didit Haryanto Andi Makawaru Yasin, Andi Makawaru Ardhyastuti, Sri Aton Patonah, Aton Bambang Prianggoro -, Bambang Prianggoro Bambang Sugiarto Benyamin Benyamin Benyamin Benyamin, Benyamin Benyamin, Benyamin Bernadeta Subandini Astuti Bombom Rahmat Suganda, Bombom Rahmat Budi Muljana Budiman, Zahra Hanifah Dany Margaesa Dicky Muslim Dietriech Geoffrey Bengen Dina Oktavia Edy Sunardi Emi Sukiyah Emy Sukiyah Erni Suminar Faizal Muhamadsyah Faizal Muhamadsyah -, Faizal Muhamadsyah Faizal Muhammadsyah, Faizal Febriwan Mohammad Fery Erawan Gaspersz, Gabriela C. N. GASPERSZ, GABRIELA.C.N. Hendarmawan Hendarmawan Hendarmawan Hendarmawan, Hendarmawan Hendarmawan, . Heryadi Rachmat Hilarius Rodriguez Hilarius Rodriguez, Hilarius Ildrem Syafri Ismawan Ismawan, Ismawan Ismawan, . Isni Nurruhwati Isni Nurruhwati Iwan Nursahan Iyan Haryanto Johanes Hutabarat Margaesa, Dany Martha Magdalena Nanlohy Moeh. Ali Jambak Moeh. Ali Jambak, Moeh. Ali Muhamadsjah, Faizal Muhamadsyah, Faisal Muhammad Abdillah Hasan Qonit Muhammad Kurniawan Alfadli Nana Sulaksana Nana Sulaksana Nanda Natasia Nisa Nurul Ilmi Nurdrajat Nurdrajat Nursahan, Iwan Panji Ridwan Ratih C. F. Ratumanan Richardus Kaswadji Richardus Kaswadji Ridwan, Panji Rieuwpassa, Lilian C Rieuwpassa, Lilian Cornelia Rodriguez, Hilarius Rosana, Mega Fattima Rusman Rinawan -, Rusman Rinawan Sato, Tokiyuki Sayaf, Ival Umar Sudarjat Sudarjat Sudarjat Syahrulyati, Tety SYARIFUL MUBAROK Undang Mardiana Winantris Winantris Yudi Darlan Yuyun Yuniardi Zufialdi Zakaria

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