Article Per Year (5 Year)
p-Index From 2020 - 2025
1.006
P-Index
This Author published in this journals
All Journal Bulletin of Scientific Contribution : Geology JGE (Jurnal Geofisika Eksplorasi) Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Journal of Science and Applicative Technology Jurnal Pengabdian Pada Masyarakat Berita Sedimentologi TeknoKreatif: Jurnal Pengabdian kepada Masyarakat Journal of Sciencce Technology and Visual Culture Journal of Geosciences and Applied Geology
Rinaldi Ikhram
Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 9 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search

 1 
GEOLOGI GUNUNGAPI PURBA SOREANG DAN IMPLIKASINYA TERHADAP POTENSI CEBAKAN EMAS Rinaldi Ikhram; Irfan Arifin; R. Irvan Sophian
Jurnal Geofisika Eksplorasi Vol 7, No 2 (2021)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v7i2.140

Abstract

Gunungapi Purba Soreang yang terletak di Kabupaten Bandung merupakan gunungapi yang tidak aktif dan tererosi kuat. Daerah ini memperlihatkan susunan litologi gunungapi strato-vulanik serta memiliki morfologi perbukitan bergelombang tak beraturan dan bukit-bukit soliter. Penelitian ini dilaksanakan untuk mengetahui hubungan geomorfologi dan geologi Gunungapi Purba Soreang dengan potensi keberadaan cebakan emas. Metode yang dilakukan adalah analisis geomorfologi, pemetaan vulkanostratigrafi dan analisis struktur geologi serta identifikasi zona alterasi dan mineralisasi. Berdasarkan peta morfografi dan kemiringan lereng, daerah penelitian menunjukan bentuk bentang alam khas gunungapi berupa bentuk yang menyerupai lingkaran atau circular feature yang dihasilkan oleh batuan intrusi, kubah lava, dan leher gunungapi purba, sebagai petunjuk lokasi sumber erupsi. Produk gunungapi purba Soreang memperlihatkan fasies sentral hingga distal dalam beberapa satuan gumuk dan khuluk. Litologi penyusun daerah ini di antaranya intrusi andesit dan diorit yang sebagian besar telah mengalami alterasi hidrotermal, perselingan lava dan breksi piroklastika dan tuff. Litologi ini menunjukkan bahwa Gunungapi Soreang merupakan jenis strato-vulanik. Di area Gunungapi Purba Soreang ini telah dilakukam eksplorasi potensi mineralisasi emas pada zona sentral. Pertambangan tradisional juga telah dilakukan oleh masyarakat lokal.  Berdasarkan analisis terpadu bentang alam dengan litologi, perkiraan tubuh Gunungapi Purba Soreang dan zona sentral gunungapi tersebut dapat diidentifikasi. Hasil identifikasi tersebut digunakan untuk membantu penetapan area eksplorasi potensi cebakan emas di wilayah Soreang.
Karakteristik Geokimia Basal Alkali Formasi Manamas di Sungai Bihati, Baun, Pulau Timor Angga Jati Widiatama; Lauti Dwita Santy; Happy Christin Natalia; Joko Wahyudiono; Rinaldi Ikhram
EKSPLORIUM Vol 42, No 1 (2021): Mei 2021
Publisher : Pusat Teknologi Bahan Galian Nuklir - BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2021.42.1.6205

Abstract

ABSTRAK Batuan beku Formasi Manamas di Sungai Bihati, Baun merupakan salah satu singkapan batuan beku di Pulau Timor yang belum banyak diteliti berdasarkan karakter geokimia. Penelitian ini bertujuan untuk mengetahui genesa dan proses yang terjadi pada batuan beku Formasi Manamas dalam kerangka tektonik yang terjadi di Pulau Timor berdasarkan analisis petrografi dan geokimia. Analisis geokimia dilakukan dengan menggunakan X-ray Fluorescence (XRF) dan Inductively Coupled Plasma-mass Spectrometery (ICP-MS) untuk mengetahui senyawa utama, unsur jejak, dan unsur tanah jarang. Batuan beku Formasi Manamas berupa intrusi basal dengan afinitas alkali yang menunjukkan pola pengayaan unsur tanah jarang yang identik dengan Ocean Island Basalt (OIB). Penelitian ini membuktikan adanya dua mekanisme pengayaan unsur yang berbeda yaitu fluid related enrichment yang berkaitan dengan aktifitas subduksi lempeng Samudra Hindia di bawah Busur Banda dan melt related enrichment yang diperkirakan berasal dari sisa lempeng Samudra Hindia yang patah yang masuk kedalam zona reservoir OIB. Kedua magma lalu bercampur dan mengalami underplating di bawah Busur Banda. ABSTRACT The igneous rock of Manamas Formation in the Bihati River, Baun is one of the igneous rock outcrops in Timor Island that has not been widely studied based on its geochemical characteristic. This study aims to determine the genesis and processes that occur in the igneous rocks of the Manamas Formation within tectonic framework of Timor Island based on petrographic and geochemical analysis. X-ray Fluorescence (XRF) and Inductively Coupled Plasma-mass Spectrometery (ICP-MS) were used to determine the major elements, trace elements, and rare earth elements. The igneous rock of the Manamas Formation is a basalt intrusion with an alkaline affinity which shown an enrichment pattern of rare earth elements identical to Ocean Island Basalt (OIB). This study proves the existence of two different mechanisms of elemental enrichment, fluid related enrichment which related to the subduction activity of the Indian Ocean plate under the Banda Arc and also melt related enrichment which originated from the broken Indian Ocean plate which enters the OIB reservoir zone. The two different magmas then mix and underplating beneath the Banda Arc.
Analisis Tingkat Kepuasan Masyarakat terhadap Penerapan Generator-Mikrohidro sebagai Sumber Energi Listrik di Dusun Batu Saeng, Lampung Madi Madi; Khoirun Naimah; Duwi Hariyanto; Rinaldi Ikhram; Isnaini Rahmadi; Alfajar Puja Kusuma; Hasbiyalloh Hasbiyalloh; Risfihan Rafi
Jurnal Pengabdian Pada Masyarakat Vol 6 No 3 (2021)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/002.202163.815

Abstract

ANALYSIS OF THE LEVEL OF COMMUNITY SATISFACTION ON THE APPLICATION OF MICRO-HYDRO GENERATORS AS A SOURCE OF ELECTRICAL ENERGY IN BATU SAENG, LAMPUNG. Generator-Micro hydro is a very important component for hydroelectric power in meeting the electricity needs of the community. Batu Saeng is one of the areas in Lampung Province that still lacks electricity. The people there are always hydropower. However, based on a team survey, several components are no longer suitable for use, one of which is a generator. This old generator with a capacity of 8000 watts has been used by the people of Batu Saeng, but its condition is currently rusty, almost burnt, and is no longer suitable for use. This condition is due to economic problems that make it impossible to replace micro-hydro plants. Therefore, the community service team helped replace a newer generator with a larger capacity of 10,000 watts. A 10,000 watt micro hydro power plant has supplied electricity to 20 houses in Batu Saeng. The community service team also obtained data from the community satisfaction survey on the application of the 10,000 watt micro hydro generator. The scope consists of administration, procedures, communication, engineering, and generating equipment. The analysis results show that 100% of the people are very satisfied with the implementation of the micro hydro generator by the service team.
Geodiversity of Ciletuh-Palabuhanratu UNESCO Global Geopark, Sukabumi, West Java Nugraha Ardiansyah; Katon Sena Aji Nugraha; Rinaldi Ikhram
Berita Sedimentologi Vol 44, No 1 (2019)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1136.241 KB) | DOI: 10.51835/bsed.2019.44.1.66

Abstract

Ciletuh-Palabuhanratu UNESCO Global Geopark (CPUGG) is located in the southwest of Sukabumi Regency, West Java, Indonesia. It covers an area of 126,000 ha or 1260 km2. CPUGG has several rare geodiversity features that can be classified into the theme: “The subduction zone uplifted, Ancient magmatic zone shifting and fore arc evolution”. This paper presents a summary of geodiversity features within CPUGG, Data sources are to be found on CPUGG’s website and in the scientific publications in the references. Within CPUGG 24 geosites contain one or more objects. All are of local, national, and international value. In addition, each geosite has also applications in scientific research, educational and touristic value or both. The geosites are: Cisolok Geyser (the only geyser in Indonesia), the Mega Amphitheatre (the Biggest Natural Amphitheatre in Indonesia), the Pasir Luhur Complex (Metamorphic Rocks) and the Gunung Beas Complex (Ophiolites). Some heritage sites contain rare rocks and fossils such as Ciletuh Formation (Batu Naga, Karang Daeu, etc.) the oldest sedimentary deposits in West Java.
Potensi Geodiversity di Sekitar Kawasan Anak Krakatau-Way Kambas, Provinsi Lampung, Sebagai Kandidat Geopark Indonesia Happy Christin Natalia; Danni Gathot Harbowo; Rinaldi Ikhram
Journal of Science and Applicative Technology Vol 5 No 1 (2021): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/jsat.v5i1.318

Abstract

The global significance of Krakatau Volcanic Complex and Way Kambas National Park is the best potential areas to be developed as part of a world heritage, particularly as UNESCO Global Geopark. Both of these objects are in the Lampung Province, Indonesia. Soon, it is necessary to identify and make an inventory of key sites that could become the theme of the area. The study of geodiversity and scientific valuation was carried out which referred to the Technical Guidelines for the Assessment of Indonesia Geological Heritage Resources, 2019. Based on these studies and assessments, there are 14 key sites to represent for Geopark Krakatau-Way Kambas themes. These sites are closely related to the evolution of tectonic activity in the Southern Sumatera as well as the dynamics of magmatism and paleovolcanism that have occurred since the Mesozoic which has signification in human history as world heritage.
Jejak Gunung Api Purba di Kota Bandar Lampung, Berdasarkan Analisis Petrologi dan Geomorfologi Yogi Adi Prasetya; Rinaldi Ikhrama
Journal of Science, Technology, and Visual Culture Vol 2 No 1 (2022): Maret 2022
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kota Bandar Lampung adalah ibu kota Provinsi Lampung yang terletak di pesisir Teluk Betung, di tengah Kota Bandar Lampung terdapat perbukitan yang sangat menonjol keberadaannya jika dibandingkan dengan wilayah sekitarnya. Dengan menggunakan metode geomorfologi menggunakan citra satelit SRTM DEM, Kemiringan lereng bukit-bukit ini berkisar dari agak curam hingga sangat curam perbedaan ketinggian sekitar 25-100 meter dan kemiringan agak curam hingga terjal. Pada observasi lapangan didapatkan bukit-bukit tersebut tersusun oleh batuan piroklastik dengan struktur kekar kolom dengan warna cerah dan lapisan gelas vulkanik dan batu beku intrusi berupa intrusi andesit. Dari sayatan petrografi dapat dilihat jika batuan piroklastik pada daerah penelitian tersusun oleh mineral plagioklas, potasium feldspar, hornbenda. Pada intrusi andesit tersusun oleh mineral plagioklas dan piroksen. Bukti-bukti di lapangan dan laboratorium membuktikan bahwa bukit-bukit yang berada di tengah Kota Bandar Lampung adalah sisa dari gunung api purba yang sudah mati dan tidak aktif lagi.
Penerapan Generator Mikrohidro Sebagai Sumber Energi Listrik di Dusun Batu Saeng, Tanggamus, Lampung Madi, Madi; Naimah, Khoirun; Hariyanto, Duwi; Ikhram, Rinaldi; Rahmadi, Isnaini; Kusuma, Alfajar Puja; Hasbiyalloh, Hasbiyalloh; Rafi, Risfihan
TeknoKreatif: Jurnal Pengabdian kepada Masyarakat Vol 1 No 2 (2021): TeknoKreatif: Jurnal Pengabdian kepada Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M), Institut Teknologi Sumatera, Lampung, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/teknokreatif.v1i2.477

Abstract

Warga Dusun Batu Saeng merupakan contoh yang memproduksi listrik dari mikrohidro. Namun berdasarkan hasil survei tim, seluruh komponen terutama generator mikrohidro sudah tidak layak pakai, yang menyebabkan produksi listrik semakin menurun. Oleh karena itu, Tim Pengabdi menawarkan kepada warga untuk menerapkan generator mikrohidro di Dusun Batu Saeng, dengan spesifikasi daya yang lebih besar, material yang lebih bagus, dan desain yang lebih modern. Adapun pelaksanaan yang telah dilakukan adalah, survei lokasi, forum diskusi warga, persiapan peralatan dan bahan, penerapan dan perakitan generator mikrohidro, analisis survei data kepuasan, pelaporan dan luaran. Hasil akhir dari program ini adalah, generator-mikrohidro 10.000 kilowatt yang berhasil membantu menerangi dua puluh rumah warga di Dusun Batu Saeng. Harapan dari program ini semoga bisa dijadikan inspirasi dan referensi untuk penerapan teknologi energi terbarukan di masyarakat yang berpotensi.
IDENTIFICATION OF CLASTIC LIMESTONE CHARACTERISTICS AS A BUILDING MATERIAL IN SURADE AREA, WEST JAVA, INDONESIA Wahidah, Andhika Nurul; Fachrudin, Kurnia Arfiansyah; Ikhram, Rinaldi
Journal of Geological Sciences and Applied Geology Vol 2, No 3 (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.v2i3.15650

Abstract

Surade subdistrict is located in Sukabumi District, West Java with an area of 364.19 km² which is about 60% lithology of this area is in the form of clastic rock of Cibodas Formation. Surade Subdsitrict is also included in Geopark Ciletuh-Palabuhanratu area. As a quarry material, limestones are beneficial in the interests of industry and building materials. Locals use limestone for construction material as a bricks. Material are dig in small scale for both individual and large-scale use fo resale. Material mined manually by sawing a massive limestone according to a certain size. Macroscopically, this limestone has a yellow color, allochtonous type, calcarenite grain size, open fabric, good sorting, exposed with massive or parallel laminate structures with a thick outcrop up to 7 meters. Microscopically, the type of limestones is packstone and wackestone locally. Composed of shell and non-shell fragments in the form of rock fragments, as well as other mineral fragments. Limestone has been dissolved and visible cementation of the found voids. Limestone is not too good as a substitute for bricks in the building construction because it has low value of compressive strength that will affect the resistance of the building’s burden. This limestone is easily soluble and less resistant to the weather so it can reduce the quality of building, but has the advantage to store more water vapor it is good to regulate humidity in tropical buildings. The existence of clastic limestone becomes the potential of geological diversity in Geopark Ciletuh-Palabuhanratu area. Locals take this advantage to boost the economy, but needs sepecial attention to watching of mining activities to avoid adverse affect at conservation area.Keywords: clastic limestone, Surade, Indonesia, building materials, Ciletuh-Palabuhanratu Geopark
PETROLOGI BATUAN OFIOLIT DAERAH SODONGPARAT, KAWASAN CILETUH, SUKABUMI Rosana, Mega F.; Yuningsih, Euis T.; Saragih, Kessar D.; Ikhram, Rinaldi; Ardiansyah, Nugraha
Bulletin of Scientific Contribution Vol 13, No 3 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1152.757 KB) | DOI: 10.24198/bsc.v13i3.8409

Abstract

Ophiolite outcrops offers a unique opportunity to learn directly oceanic lithosphere, as ophiolite represents one of the few outcrops of rock that body can not be reached. Ophiolite is interpreted in the context of plate tectonics, as part of the oceanic lithosphere thrust into the continent during the first phase of orogenesa. Many geologists believe that the definition of ophiolite according to Penrose Field Conference in 1972, which is a typical sequence of rocks composed of, starting from the bottom: the complex ultramafic, gabbro complex, complex sheeted mafic dikes, complex mafic-volcanic and sedimentary pelagos. Ophiolite sequence may be incomplete, torn or termetamorfisme. Group ophiolite in area Ciletuh is an assemblage of mafic rocks (basalt, gabbro and ultramafic (peridotite, serpentinite), which is closely associated with the sedimentary-volcanic and metamorphic rocks. Generally ofiolitnya a sequence ophiolite very incomplete, and the mechanism of the transferor-tempatannya (emplacement ) can be equated with ophiolite "Cordilleran", which is rather a ophiolite (ocean floor, which did not contain fragments of the continent) above the subduction complex.
Co-Authors Alfajar Puja Kusuma Angga Jati Widiatama Danni Gathot Harbowo Duwi Hariyanto Euis T. Yuningsih, Euis T. Fachrudin, Kurnia Arfiansyah Hariyanto, Duwi Hasbiyalloh Hasbiyalloh Hasbiyalloh, Hasbiyalloh Irfan Arifin Isnaini Rahmadi Joko Wahyudiono Katon Sena Aji Nugraha Kessar D. Saragih, Kessar D. Khoirun Naimah Kusuma, Alfajar Puja Lauti Dwita Santy Madi Madi Madi, Madi Mega F. Rosana, Mega F. Naimah, Khoirun Natalia, Happy Christin Nugraha Ardiansyah Nugraha Ardiansyah, Nugraha R. Irvan Sophian Rafi, Risfihan Rahmadi, Isnaini Risfihan Rafi Wahidah, Andhika Nurul Yogi Adi Prasetya