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All Journal Jambura Geoscience Review Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) IPSSJ Frontier Advances in Applied Science and Engineering
Ar-rouf, Ferdian Budi
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Earthquake Hazard Analysis in Ciletuh Pelabuhan Ratu Geopark Area, West Java Ferdian Budi Ar-rouf; Ferryati Masitoh
Jambura Geoscience Review Vol 5, No 1 (2023): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v5i1.14698

Abstract

Indonesia is situated between Asia and Australia, as well as the Indian and Pacific Oceans. This circumstance places Indonesia in a geologically complicated pattern, which increases the intensity of earthquakes, tsunamis, volcanoes, and landslides. UNESCO has classified Pelabuhanratu Ciletuh Geopark as a world heritage area. This has resulted in an explosion in tourist and development activity. Even though this tourism destination has the potential for high seismicity, there has been no analysis of the seismic hazard in this region. This study aims to map the earthquake hazard in the Ciletuh Pelabuhan Ratu Geopark Area. This will be important for determining vital assets' placement and development planning. This study employs remote sensing studies and geographic information systems to examine and classify earthquake-prone locations. We evaluated data from DEM, RBI, and soil-type maps. This method evaluates each earthquake hazard metric using the Analytical Hierarchy Process (AHP). The large research area has a slope between 0-300. Few locations have steep slopes. In the Districts of Cisolok, Cikakak, and portions of Pelabuhan Ratu, the characteristics of the huge hard rock are derived from the Quaternary volcanic deposits of Mount Endut. As a result, this region possesses a solid rock structure that can absorb an earthquake propagation wave. This dynamic process of geomorphological creation can also demonstrate that the region surrounding the lineage will feel the effects of a future earthquake. The results show that Ciemas, Simpenan, parts of Cisolok, and Pelabuhanratu districts are included in the moderate to high category of earthquake threats.
Kajian Genangan Bahaya Tsunami di Kawasan Pantai Palabuhanratu, Geopark Ciletuh Ar-rouf, Ferdian Budi; Rosana, Mega Fatimah; Endyana, Cipta
JURNAL GEOLOGI KELAUTAN Vol 20, No 1 (2022)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/jgk.20.1.2022.754

Abstract

Daerah Selat Sunda masuk dalam segmentasi Sumatera dan Jawa dari Busur Sunda, yang memiliki karakteristik sangat aktif dalam aktivitas vulkanik, kegempaan, dan pergerakan tektonik. Patahan naik busur Sunda menimbulkan Gempa bumi yang kuat hingga 8.8Mw yang dapat memicu tsunami. Kawasan Palabuhanratu masuk dalam kategori yang terdampak dalam bahaya tsunami dari Busur Sunda. Kajian pembuatan peta zona bahaya genangan tsunami model ketinggian 5 meter, 10 meter, dan 30 meter berdasarkan periode ulang tsunami dikawasn Selat Sunda. Metode penelitian dengan menggunakan data sekunder dari NASA yaitu ASTER GDEM untuk menunjukkan elevasi dan Sentinel 2B untuk menunjukkan penggunaan lahan. Tools Pengolahan data citra satelit dengan Software QGIS. Hasil kajian menunjukkan bahwa bahaya genangan tsunami dengan ketinggian 5 meter memiliki luasan keterpaparan 113,65 ha, 10 meter keterpaparan 720,27 ha, dan 30 meter sebesar 1531.78 ha. Dengan cakupan desa yang terdampak Citepus, Palabuhanratu, Jayanti, Citarik dan Tonjong.
IDENTIFIKASI TAMBANG ILEGAL DI BANGKA TENGAH DAN BANGKA SELATAN DENGAN LANDSAT 9 Ferdian Budi Ar-rouf
Integrative Perspectives of Social and Science Journal Vol. 2 No. 2 Maret (2025): Integrative Perspectives of Social and Science Journal
Publisher : PT Wahana Global Education

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Abstract

Kegiatan pertambangan yang diatur dalam UUD 1945 menyebutkan bahwa “bumi dan air serta kekayaan alam yang terkandung di dalamnya dikuasai oleh negara dan dipergunakan sebesar-besarnya untuk kemakmuran rakyat.” Namun, pengawasannya belum benar-benar ketat. Kegiatan pertambangan timah di Bangka Tengah dan Bangka Selatan diindikasikan masih terjadi penambangan liar hingga saat ini. Penelitian ini bertujuan untuk mengidentifikasi wilayah-wilayah di Bangka Tengah dan Bangka Selatan yang mengalami penambangan liar di luar Izin Usaha Pertambangan (IUP). Metode yang digunakan adalah pemanfaatan Citra Satelit Landsat-9 dan ilmu Sistem Informasi Geografis (SIG) untuk membantu pemrosesan data citra satelit. Pengelolaan SIG menggunakan software QGIS dengan bantuan GIS Service milik Kementerian Lingkungan Hidup dan Kehutanan. Hasil penelitian menunjukkan bahwa tambang ilegal yang terjadi di Bangka Tengah mencakup luas 23.749 hektar, sedangkan di Bangka Selatan seluas 3.229 hektar.
Analysis of Viscosity Effects from the Addition of Mesona Palustris (Black Grass Jelly) on Chitosan Polymer Mohamad Obby Adianto; Muhammad Agni Gustama; Ferdian Budi Ar Rouf; Nyimas Ulfatry Utami; Robekca Purba
Frontier Advances in Applied Science and Engineering Vol. 3 No. 1 (2025)
Publisher : Tinta Emas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/faase.v3i1.555

Abstract

The main purpose of polymer injection is to reduce the water-oil mobility ratio. Polymers that are widely used are polyacrylamide and polysaccaharides. By increasing the viscosity of the injection fluid, polymer injection can increase the sweep efficiency thereby increasing oil recovery. Refining on petroleum is highly dependent on the efficiency of macroscopic and microscopic pressing. This research purpose is to determine whether the viscosity effect resulted from mesona palustris addition on chitosan polymers could make a good viscosity for oil recovery. The method used in this research is a laboratory experiment with an Ostwald viscometer. The salinity of the formation water used in this study was 20.000 ppm with variations in polymer concentrations of 500 ppm, 1.000 ppm, and 2.000 ppm on the polymer without a mixture of mesona palustris and with a mixture of mesona palustris. The results showed that there was a decrease in polymer viscosity with the addition of mesona palustris to the chitosan polymer, namely the polymer concentration of 500 ppm decreased from 1,56 cp to 1,04 cp, the polymer concentration of 1.000 ppm decreased from 1.87 cp to 1.21 cp. And at a polymer concentration of 2.000 ppm it decreased from 2.38 cp to 1.43 cp.
Analysis of Compatibility Test of Mesona Palustris (Black Grass Jelly) and Chitosan Solution on Formation Water Saltity Mohamad Obby Adianto; Muhammad Agni Gustama; Ferdian Budi Ar-Rouf
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 2 (2026): May
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i2.1822

Abstract

The primary purpose of polymer injection is to reduce the water-oil mobility ratio. Commonly used polymers are polyacrylamide and polysaccharides. By increasing the viscosity of the injection fluid, polymer injection can improve sweep efficiency, thereby increasing oil recovery. Petroleum refining relies heavily on macroscopic and microscopic compression efficiency. This study aims to determine the compatibility test results between mesonapalustris and chitosan to determine whether good compatibility test results are obtained. The method used in this study is a laboratory experiment with observation. Compatibility was evaluated based on visual observation and qualitative stability indicators, with no effect across all salinity and concentration ranges. Quantitative indicators showed viscosity retention of >90% at and temperature. This demonstrates the potential of biopolymers as alternative agents in polymer flooding, with an increase in oil recovery of 15–20% OOIP.  Compatibility testing of polymer solutions in formation water is carried out to determine whether the polymer solution is completely soluble in the formation water. The test is carried out by dissolving the polymer in formation water with salinities of 10,000, 15,000, and 20,000 mg/L and polymer concentrations of 500, 1,000, and 2,000 mg/L. The solution is then placed in a bottle and observed for complete dissolution or sedimentation. Based on the results and discussions, experimental laboratory testing of black seaweed jelly and chitosan revealed compatibility results, which showed that all polymer solutions, both black seaweed jelly and chitosan, were compatible with various salinities of formation water, indicating that all polymer solutions were completely dissolved, no precipitation occurred and this suggests potential applicability of biopolymers as alternative agents in polymer flooding.
Co-Authors Cipta Endyana Ferryati Masitoh Gustama, Muhammad Agni Mega Fatimah Rosana Mohamad Obby Adianto Muhammad Agni Gustama Nyimas Ulfatry Utami Robekca Purba