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All Journal Indonesian Journal of Geography Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktik dalam Bidang Pendidikan dan Ilmu Geografi Jurnal Teknologi Mineral dan Batubara 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) Indonesian Mining Journal Buletin Sumber Daya Geologi JURNAL SUMBER DAYA AIR Kumawula: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal on Geoscience Indonesian Journal on Geoscience Jurnal Perspektif Pembiayaan dan Pembangunan Daerah Journal of Geoscience Engineering and Energy (JOGEE) Jurnal Geominerba Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Teknologi Mineral dan Batubara Journal of Geosciences and Applied Geology Indonesian Mining Journal Geoid - Journal of Geodesy and Geomatics
Emi Sukiyah
Fakultas Teknik Geologi Universitas Padjadjaran
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Journal : Journal of Geosciences and Applied Geology

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THE SINISTRAL STRIKE SLIP FAULT AS AMPANA BASIN CONTROLLER IN CENTRAL SULAWESI Saragih, Rahmat Yantono; Haryanto, Iyan; Sukiyah, Emi; Ilmi, Nisa Nurul; Sunardi, Edy
Journal of Geological Sciences and Applied Geology Vol 2, No 4 (2018): 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.v4i2.18289

Abstract

The presence of gas seepage born in Tanjungapi precisely in the southwestern part of the basin.This remission is supposed to be formed from main rocks of Mesozoic aged. The condition ofAmpana Basin formation cannot be separated from the effect of the relatively northeast-southeastsinistral strike-slip-fault. Based on the 43 outcrop, the main deformation product was identified asan extensional/hybrid joint with a relatively west-east fault line structure on average shear strain(η) = 58o (+) to (η) = 60o (+) and in form of the relatively northwest-southeast strike-slip-faultstructure line with the range of shear strains value between (η) = 45o (+) to (η) = 54o (+). Thekinematics movement of relatively vertical main stress gives a subsidence impact on the surfaceof Mesozoic-Paleogenic aged rock. The sedimentation process of Neogene-aged clastic, from theBongka Formation, Kingtom Formation, and Lonsio Formation ran fast and make the lowerMesozoic-Paleogene-aged rock being burdened by the upper younger rocks. The tectonicdevelopment in Ampana Basin is recorded in Lonsio Formation, Bongka Formation, and limestonein the form of structural indication and deformation showing the period of Central Miocene toHolocene tectonic with the relatively west-east direction of the main regional stress. Keywords: Ampana basin, deformation, strike slip fault, Sulawesi, Tanjungapi
QUANTITATIVE GEOMORPHOLOGY EXPRESSION OF GEOLOGICAL STRUCTURES USING SATELLITE IMAGERY AND GEOSPATIAL ANALYSIS: AN EXAMPLE IN THE SOUTHERN PART OF MERAPI MOUNT, YOGYAKARTA, INDONESIA Riswandi, Herry; Sukiyah, Emi; Tania, Dina
Journal of Geological Sciences and Applied Geology Vol 4, No 3 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i3.32228

Abstract

Research using morphotectonics parameters from a 30-m digital elevation model to evaluate satellite imagery data. It process by contour, slope, aspect, and hillshade analysis of geographic information system tools. For geological lineaments, drainage patterns and their relation with geological structures. Data analyzed in digital format reveals the lineament identifies 116 segments in north-south and east-west polar direction, with length from 0.2 to 4.6 km. Quantitative geomorphology is based on the slope and valley dimension in four watersheds to recognize recent tectonic activity located on the southern slopes. Digital quantitative geomorphic analyzed volcanic slope area to generate data along with the tectonic evolution in annual eruption. Furthermore, the results become references for recent tectonic activity on the volcanic slopes, with several exceptional values of the four watersheds. That indices of bifurcation ratio, drainage density (3.44-4.76), sinuosity of mountain front (3-4), valley floor width to valley height ratio (0.021-0.32), asymmetry factor (16.7-2), streams length gradient index (5.9-12.2),  hypsometric (h/H 0.4-0.6 and a/A 0.4-0.5), transverse topography symmetry (0.47-0.87), elongation of basin ratio (0.003). The analyzed data results that structures are shifting. The geomorphological index can support tectonic activity assessment through the deformation of land from various volcanic deposits, uplift rate, and asymmetric river maturity.
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

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
THE LEVELS OF LEMBANG FAULT ACTIVITY BASED ON GEOMORPHIC INDEXES ON AROUND THE CIKAPUNDUNG WATERSHED, WEST JAVA Syalsabilla, Lola Lintang; Haryanto, Iyan; Sukiyah, Emi
Journal of Geological Sciences and Applied Geology Vol 4, No 1 (2020): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i1.28518

Abstract

Lembang Fault is a fault in the highlands of Bandung, which has an East-West direction with a length of about 29 km. This fault greatly affects the landscape around the Cikapundung watershed, especially in the upstream. An analysis performed using the geomorphic index; Basin Shape, Mount Front Sinuosity, Asymmetry Factor, T – Index, Ratio of Valley Floor Width to Valley Height, and Relative Tectonic Activity. Based on the analysis using methods above, the level of tectonic in the Cikapundung watershed ranges from active to low. The presence of Lembang fault affects landscape, forming zone that borders the Bandung highlands and the Subang area in the north.
LAND MOVEMENT VULNERABILITY ZONING IN THE HILLY AREA OF NORTHERN CILACAP, CENTRAL JAVA Nurfadli, Eza; Sukiyah, Emi; Gani, Reza Mohammad Ganjar; Ramadian, Aldrin
Journal of Geological Sciences and Applied Geology Vol 8, No 1 (2024): 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.v8i1.57140

Abstract

The northern part of Cilacap has an area with hilly morphology with slopes that are relatively gentle to steep. The geological setting in this region is quite complex, the combination of tectonics and the physical properties of the rocks means that this region is strongly deformed. This has an impact on areas prone to landslides as one of land movement types. To what extent can this area be classified based on the vulnerability of its land to landslides is the problem be studied. There are five aspects used in this research, namely rainfall, rock type, slope, land cover and soil type. The multi-aspect overlay method is used to determine the spatial distribution of land movement-prone zones. Geographic Information System-based software support makes the data analysis process easier. Based on the results of the spatial analysis of five aspects, it was concluded that the North Cilacap area could be grouped into 3 land movement vulnerability zones, namely the low vulnerability zone with a score of 8-17, the medium vulnerability zone with a score of 18-27, and the high vulnerability zone with a score of 28-37. The complex tectonic order is the main controller of land movement events in this region.
THE APPLICATION OF LANDSAT IMAGERY PROCESSING FOR EROSION STUDY Sukiyah, Emi; Fachrudin, Kurnia Arfiansyah
Journal of Geological Sciences and Applied Geology Vol 4, No 3 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i3.32240

Abstract

Landsat imagery has a relatively smaller resolution than topographic maps, within certain limits it can support the morphometric analysis of a watershed. The results of the average difference test between the drainage density population from Landsat imageries and topographic maps, at a significant level of 0.20, are proven to be significant. In certain cases, its value can reflect the effectiveness of erosion in an area. For relatively supportive bedrock types, it is can reflect the erodibility of soil from weathering the bedrock. Combination of fit some bands of Landsat Images can appear unique tones and features. They can lead for erosion zones delineation. Thus phenomena reflected by various scatter gram patterns. The range of digital number can reflect erosion grade by ratio analysis of band 1- band 4 and band 1- band 7. The phenomenon shows that Landsat imagery can be used for delineation of erosion zones based on the characteristics of the earth's surface constituent materials through digital number range analysis.
FLOOD POTENTIAL IN THE DOWNSTREAM OF CITARUM RIVER, MUARA GEMBONG, BEKASI DISTRICT, WEST JAVA Patonah, Aton; Tresnasari, Endah; haryanto, edi tri; rendra, pradnya p. raditya; sabily, zulfa; sukiyah, emi; sulastri, murni; abdurrohman, Muhammad jihad; putera, alvindo andreansyah; Subagja, Agam; ridwan, panji
Journal of Geological Sciences and Applied Geology Vol 3, No 3 (2019): 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.v3i3.26013

Abstract

The flood can affect an area so cause great loss. Muaragembong is one of the sub-districts in Bekasi Regency. This area is known as an area that is regularly hit by floods. The purpose of this study is to analyze changes in flood areas, specifically those related to residential areas. The results showed significant changes in the flood area from 1993 to 2016. Increased changes in land use from swampy areas and mangrove forests to residential areas are thought to be the cause of the increase in flooding every year. One way to reduce the impact of flooding in Muaragembong is to restore the existence of mangrove forests along the Citarum River to the sea.Keywords: Flood, Muara Gembong, Citarum River, Land Use
THE MORPHOTECTONIC CHARACTERISTIC OF BUOL WATERSHED AND IMPLICATION TO SPATIAL PLANNING IN BUOL REGION, CENTRAL SULAWESI, INDONESIA Tawil, Sukardan; Sukiyah, Emi; Rosana, Mega Fatimah; Muslim, Dicky; Raditya Rendra, Pradnya Paramarta
Journal of Geological Sciences and Applied Geology Vol 3, No 2 (2019): 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.v3i2.23081

Abstract

The Buol watershed is located on the northern arm of Sulawesi Island. Geomorphology in this region is controlled by developing faults. Geomorphological analysis is done to obtain objective results. Geomorphological variables can explain significantly the geomorphic process itself. The studio, field and laboratory methods is used in this research. Studio analysis consists of topographical map, satellite imagery, Ratio of valley Floor Width to Valley Height (Vf), Mountain Front Sinuosity (Smf), Drainage density (Dd), and Bifurcation Ratio (Rb) analysis. Also, statistical test is used to determine the relationship between these variables. Research area in watershed Buol has landform, namely lowland, low hills, hills, and high hill. Drainage pattern that developed namely anastomotic, sub-dentritic, sub-parallel, trellis, and sub-trellis drainage pattern. The results of the watershed morphometry analysis show calculation of the average value of Rb is 1.48 to 6.24, value of Dd average from 1.17 to 2.45., Smf value ranged from 1.6 to 1.76 and Vf ratio range from 0.5 to 1. That phenomenon shows that the Buol watershed is controlled by tectonic.
THE IMPACT OF EROSION-SEDIMENTATIONS TO SILTATION OF KENDARI BAY AND IMPLICATIONS IN TOURISM DEVELOPMENT OF SOUTHEAST SULAWESI, INDONESIA Sukiyah, Emi; Jassin, A.M.I.; Fachrudin, Kurnia Arfiansyah
Journal of Geological Sciences and Applied Geology Vol 4, No 2 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v4i2.32226

Abstract

Kendari Bay is a strategic area, especially for Southeast Sulawesi Province. There lies Kendari city as the provincial capital. The government is intensively developing tourism to increase local revenue. Tourism potential that can be developed includes marine tourism, mangrove tracking, and Tahura forest as the lungs of Kendari City. Sedimentation in the bay is a major problem of silting. Sediment comes from the erosion in Kendari drainage basin. The rivers that carry material of erosion products, mostly boils down in Kendari Bay. This condition can threaten the development of tourism in the bay area. Monitoring of erosion and sedimentation should be done on an on-going basis.  USLE formula be used calculate erosion rate. Several factors combined for reasons of easiness in the process of data acquisition. The data source obtained by various methods, one of them is satellite imagery processing. The study uses images of Landsat 8 OLI 2013 and SRTM 30 m. The whole data are processed using GIS software. The results showed that erosion rate in the area categorized moderate until very high level. The tree planting of upstream area and sediment dredging in the downstream area is done to slow down the rate of siltation in Kendari Bay.
MORPHOMETRY AND MORPHOTECTONIC OF CIANTEN AND CISAAT WATERSHED ON QUATERNARY VOLCANIC TERRAIN, GARUT, WEST JAVA Sipahutar, Sumahang R.; Sukiyah, Emi; Sulaksana, Nana
Journal of Geological Sciences and Applied Geology Vol 2, No 4 (2018): 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.v4i2.18280

Abstract

The research area is located in the Baluburlimbangan, Garut regency, West Java Province.Geographically, the research area is located at 107° 52' 23.32" E - 107° 59' 30.04" E and 6° 57'28.21" S - 7° 3' 39.23" S. Research object comprise Cianten and Cisaat watershed which will becompared based on morphometric and morphotectonic parameters. Observations carried outdirectly in the field and data analysis carried out in the studio. Research result shows that researcharea can be classified into medium – weak active tectonic area. It is proved by bifurcation ratio(Rb), drainage density (Dd), and sinuosity of mountain front (Smf). Active tectonic condition is alsoindicated by geology structure formed in research area such lineament of ridge and valley, anddrainage pattern.Keywords: Cianten, Cisaat, morphometry, morphotectonic, watershed
Co-Authors abdurrohman, Muhammad jihad Achmad Sjafrudin, Achmad Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Agung Mulyo Agus Didit Haryanto -, Agus Didit Haryanto Alam, Boy Yoseph Cahya Sunan Sakti Syah Algi Fajar Ghaniansah, Algi Fajar Andi Agus Nur Andi Makawaru Yasin, Andi Makawaru Andriana Sendjaja, Yoga Apong Sandrawati Arif R. Darana Arifin Anfasha, Arifin Arya, Pulung P Asep Nursalim, Asep Athanasius Cipta Aton Patonah, Aton Bani Nugroho, Bani Benny Joy Boy Yoseph Cahya Sunan Sakti Syah Alam Budi Muljana Cipta Endyana Daliman, Shaparas Binti Denny Lumban Raja Dewi Gentana Dewi Gentana Dicky Muslim Dina Tania Donny R. Wahyudi Dwi Purnomo Dyah Ayu Setyorini Edi Prasetyo Utomo Edi Tri Haryanto Edi Tri Haryanto, Edi Tri Edy Sunardi Endah, Raras Euis Tintin Yuningsih Euis Tintin Yuningsih Fachrudin, Kurnia Arfiansyah Fahira, Ghina Fery Erawan Fery Erawan Fikri Abdulah, Fikri GANI, REZA MOHAMMAD GANJAR Gentana, Dewi Gentana, Dewi Gentana, Dewi Gilang Firmansyah, Gilang Hendarmawan H Hendarmawan Hendarmawan Hendarmawan Hendarmawan, Hendarmawan Herry Riswandi HS, Karyono Ildrem Syafri Iyan Haryanto Iyan Haryanto, Iyan Jamal Jamal Jamal Jamal Jassin, A.M.I. Johanes Hutabarat Johanes Hutabarat Karyono HS Khoirullah, Nur kurnianto, brany M. Nursiyam Barkah Makkawaru, Andi Martha Magdalena Nanlohy Mawardi, Sonny Mega Fatimah Rosana Moch Ridfan Trisnadiansyah Mohamad Sapari Hadian Muhamadsyah, Faisal Muhammad Lutfi Mulyono - Nana Sulaksana Nana Sulaksana Nana Sulaksana Nana Sulaksana Nana Sulaksana Nana Sulaksana Nana Sulaksana Nendi rohaendi Nisa Nurul Ilmi Novi Triany Nurfadli, Eza Patonah Aton Pradnya P. Raditya Rendra Pradnya P. Raditya, Pradnya P. Pradnya Paramarta Raditya Rendra Puguh Setiyanto, Puguh Pulung Arya Pranantya Pulung Arya Pranantya, Pulung Arya putera, alvindo andreansyah Raden Irvan Sophian, Raden Irvan Ramadian, Aldrin Retnoningtyas, Widya Ika Ridwan, Panji Rina Devnita Rina Devnita Rita Yulianti, Rita Sabila, Zahra Syahida sabily, zulfa Sambodo, Tri Hananto Sambodo, Tri Hananto Priyo Saragih, Rahmat Yantono Setyorini, Dyah Ayu Siahaan, Yakub Sipahutar, Sumahang R. SIRAJU, ASRUL Sonny Mawardi Sri Wahyuni Subagja, Agam Suherman Dwi Nuryana Suherman Dwi Nuryana Sukardan Tawil Sulaksana, Nana Sulastri, Murni Sumaryono Sumaryono Suratman Suratman Syalsabilla, Lola Lintang Taat Setiawan, Taat Tresnasari, Endah Undang Mardiana Vijaya Isnaniawardhani Wahyuzi, Radhi Winantris Winantris Winarti Winarti Witjahjati, Retno Yoga Andriana Sendjaja Yuda, Himmes Fitra Yudhi Listiawan Yusuf, Muhammad Farhan Yuyun Yuniardi Zakaria Zufialdi Zakaria, Zulfiadi Zufialdi Zakaria, Zufialdi