Article Per Year (5 Year)
p-Index From 2021 - 2026
2.715
P-Index
This Author published in this journals
All Journal Jurnal Ilmiah Giga Journal of Geoscience, Engineering, Environment, and Technology Buletin Sumber Daya Geologi Abdi Masyarakat Buletin Poltanesa Jurnal Pengabdian Mandiri MINERAL Jurnal Ilmu Ekonomi, Pendidikan dan Teknik (IDENTIK) Aksi Kita: Jurnal Pengabdian Kepada Masyarakat Indonesia Berdampak: Jurnal Pengabdian Kepada Masyarakat
Melinda Dwi Erintina
Universitas Muhammadiyah Mataram
Religion Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

Published : 17 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 17 Documents
Search

 1   2 
ANALISIS PROFIL NIKEL LATERIT DENGAN MENGGUNAKAN DATA BOR PADA BLOK X DI PT MULIA PACIFIC RESOURCES Sadam, Muh; Erintina, Melinda Dwi; Ubaidillah, Aji Syailendra; Hidayat, Syamsul; Faesal, Andi; Syarbini, Khatib; Dermawan, Iwan; Anggara, Taufik Muja
Jurnal Ilmiah Giga Vol 28 No 2 (2025): Volume 28 Edisi 2 Tahun 2025
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v28i2.4221

Abstract

Penelitian ini bertujuan untuk menganalisis profil laterit di lokasi penelitian, mengidentifikasi komposisi mineral pada setiap lapisan, serta menentukan jenis batuan berdasarkan analisis petrografi. Endapan nikel laterit terbentuk sebagai hasil pelapukan residu batuan ultramafik melalui proses pelindian dan pemerkayaan supergen. Proses ini dipengaruhi oleh morfologi, struktur geologi, dan fluktuasi muka air tanah yang mengontrol distribusi unsur dalam profil laterit. Pendekatan penelitian kuantitatif diterapkan melalui observasi lapangan, pengambilan sampel, dan analisis bijih. Data bor pada Blok X ini belum pernah dipublikasikan sebelumnya. Hasil pengeboran menunjukkan variasi profil laterit pada setiap titik bor. Analisis mineralogi menunjukkan bahwa lapisan limonit didominasi oleh goethite, hematit, dan mangan, sementara lapisan saprolit mengandung serpentin, goethite, piroksen, olivin, dan silika. Lapisan batuan dasar didominasi oleh piroksen, serpentin, olivin, dan silika. Analisis petrografi mengonfirmasi bahwa sampel batuan dari MS-1 hingga MS-3 menunjukkan karakteristik peridotit dengan dominasi mineral piroksen, serpentin, olivin, dan kuarsa. Hasil penelitian ini memberikan wawasan mengenai karakteristik profil laterit serta distribusi mineral di daerah penelitian, yang dapat menjadi dasar eksplorasi lebih lanjut terkait potensi endapan nikel laterit.
The Karakteristik Mineralisasi dan Alterasi Transisi Porfiri-Epitermal pada Sistem Porfiri-Epitermal Prospek Onto, Dompu, Sumbawa, Indonesia: Karakteristik Mineralisasi dan Alterasi Transisi Porfiri-Epitermal pada Sistem Porfiri-Epitermal Prospek Onto, Dompu, Sumbawa, Indonesia Putra, Z A Munarfan; Hermansyah, Wahyu; Erintina, Melinda Dwi; Ubaidillah, Aji Syailendra; Syarbini, Khatib; Dermawan, Iwan; Farwati, Baiq Esti Mila; Irawan, Baiq Brilliant Vani; Faesal, Andi
Jurnal Ilmiah Giga Vol 28 No 2 (2025): Volume 28 Edisi 2 Tahun 2025
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47313/jig.v28i2.4293

Abstract

Penelitian ini mengkaji prospek onto di busur Sunda bagian timur, koridor magmatis Sunda–Banda yang prospektif terhadap endapan emas–tembaga porfiri dan epitermal, dengan tujuan mengkarakterisasi alterasi hidrotermal dan mineralisasi bijih untuk memahami hubungan sistem porfiri dan epitermal sulfidasi tinggi. Metode kualitatif meliputi studi lapangan, logging inti bor VHD039, VHD055, dan VHD086, serta analisis petrografi dan mikroskopi bijih. Hasil menunjukkan intrusi porfiri Onto mengalami tumpang-tindih alterasi argilik lanjut akibat fluida epitermal sulfidasi tinggi, dengan zonasi vertikal dari bawah ke atas berupa kuarsa–piropilit ± diaspor, kuarsa–alunit–piropilit, kuarsa vuggy residual, kuarsa–alunit, kuarsa–dikit, kuarsa–kaolinit, hingga ilit–smektit, serta dominasi mineral alterasi temperatur tinggi seperti kuarsa–alunit dan kuarsa–alunit–piropilit ± diaspor. Mineralisasi tembaga–emas didominasi kovelit–pirit yang berasosiasi dengan alterasi kuarsa–alunit pada kedalaman ±300 m, berkembang sebagai diseminasi, pengisi urat kuarsa tipe A–B, dan inklusi dalam pirit, dengan tekstur vuggy terisi kovelit, pirit, dan sulfur alami; secara keseluruhan, alterasi argilik lanjut yang intens dan dominasi kovelit–pirit–sulfur mengindikasikan Prospek Onto sebagai sistem porfiri terawetkan yang tertumpang-tindih oleh sistem epitermal sulfidasi tinggi (lithocap), mencerminkan lingkungan mineralisasi transisi yang kompleks.
Study of Small-Scale Drilling under Different Material Hardness and Machine RPM Syamsul Hidayat; Melinda Dwi Erintina
Poltanesa Vol 27 No 1 (2026): June 2026
Publisher : P3KM Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v27i1.3710

Abstract

Small-scale drilling experiments are designed to represents field blasthole-drilling conditions therefore it can be used to support decision-making process in mining operations. This study is a laboratory-scale drilling investigation, conducted to determine the penetration rate and the appearance of drilling dust clouds under varying material hardness and engine RPM (revolution per minute). Drilling was carried out on concrete media using bench drilling equipment under 7 (seven) different conditions based on material hardness and RPM. Data on drilling speed, drilling time and penetration rate were used for analysis and to support the conclusion. The results indicated that the penetration rate in soft material is faster than in hard material. The increase in penetration rate occurs proportionally with the increase of RPM in soft material. In hard material, significant differences in penetration rate occur in drilling under slow and medium RPM, whereas there is no significant difference in penetration rates between drilling under medium and high RPM.  In hard materials, there exist a "threshold level" which increasing drill RPM does not significantly affect the penetration rate. The presence of simple or non-complex discontinuities in the concrete material does not significantly affect the penetration rates. Drilling operations under low RPM tend to produce more dust clouds.
Pemanfaatan Air Tanah melalui Pemetaan Lapisan Akuifer menggunakan Metode Geolistrik di Dasan Tapen, Lombok Barat Melinda Dwi Erintina; Aji Syailendra Ubaidillah; Andi Faesal; Iwan Dermawan; Khatib Syarbini; Wahyu Hermansyah; Heni Pujiastuti; Acop Firmansyah
Aksi Kita: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1 (2026): JANUARI-FEBRUARI
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/sr7p0s47

Abstract

Minimnya data mengenai kondisi hidrogeologi bawah permukaan menyebabkan pemanfaatan air tanah oleh masyarakat Dusun Dasan Tapen, Kabupaten Lombok Barat, belum berlangsung secara optimal, terutama pada periode kemarau. Program pengabdian kepada masyarakat ini dirancang untuk mengaplikasikan metode geolistrik resistivitas dalam mengindetifikasi lapisan akuifer sekaligus memberikan pemahaman teknis kepada warga dan aparatur desa sebagai landasan perencanaan penyediaan air bersih yang lebih tepat guna dan berkelanjutan. Tahapan kegiatan mencakup koordinasi awal dengan mitra, pengukuran lapangan menggunakan konfigurasi Schlumberger, pemrosesan serta interpretasi data resistivitas dua dimensi, serta penyampaian hasil kepada masyarakat melalui peta bawah permukaan dan rekomendasi titik pengeboran. Temuan lapangan memperlihatkan beberapa zona dengan nilai resistivitas rendah hingga menengah pada kisaran kedalaman 40-80 m yang diidentifikasi sebagai lapisan berbutir pasir jenuh air dan dinilai layak sebagai sasaran sumur produksi, sedangkan kegiatan sosialisasi turut meningkatkan pemahaman masyarakat mengenai karakter akuifer setempat dan urgensi pengelolaan air tanah secara berkelanjutan. Secara keseluruhan, kegiatan ini menegaskan bahwa penerapan metode geolistrik dalam skema pengabdian tidak hanya berfungsi sebagai sarana alih teknologi, tetapi juga menghasilkan produk aplikatif berupa peta akuifer dan panduan teknis yang dapat dimanfaatkan oleh pemerintah desa dalam merencanakan penyediaan air bersih.
Pengenalan dan Sosialisasi Potensi Hotspring Oi Pana di Hu’u, Kabupaten Dompu Sebagai Manifestasi Geologi Permukaan ZA Munarfan Putra; Andi Faesal; Aji Syailendra Ubaidillah; Melinda Dwi Erintina; Maritsha Safa Felisa
Indonesia Berdampak: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1 (2026): JANUARI-JUNI 2026
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/p7y4f121

Abstract

Hu’u hot spring is a natural resource that emerges as a surface geological manifestation related to subsurface geothermal activity and has scientific and educational value for the local community. However, local community understanding of the geological processes, characteristics, and potential utilization of the hot spring remains limited, resulting in underutilization that is not yet knowledge-based or sustainable. This community service program aimed to introduce the potential of the Hu’u hot spring as a surface geological manifestation and to improve community awareness and understanding of its geological significance. The program was conducted using an educative and participatory approach, consisting of preparation, socialization and education, limited field observation, and qualitative evaluation. Educational activities were delivered through counseling sessions, interactive discussions, and simple visual media to explain basic geological concepts related to hot spring formation, while field observations were conducted directly at the hot spring site to identify observable surface manifestations. The results showed a measurable improvement in community understanding, indicated by increased participant ability to explain the origin of the hot spring, recognize key surface geological features, and articulate the importance of environmental preservation around the site. Participant engagement during discussions increased significantly, with more than two-thirds of attendees actively participating in question-and-answer sessions. The program also resulted in increased community awareness regarding the sustainable use of the hot spring as a local natural resource. Overall, this community service activity successfully enhanced geoscience literacy and provided a foundation for future community-based and sustainable utilization of the Hu’u hot spring.        
Pendugaan Kedalaman Lapisan Akuifer Air Tanah Menggunakan Metode Tahanan Jenis Di Desa Kapek, Kecamatan Gunungsari, Lombok Barat Melinda Dwi Erintina
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1286

Abstract

Limited surface-water availability during the dry season has increased the dependence of communities in Kapek Village, Gunungsari District, West Lombok Regency, on groundwater resources as their primary water supply. This condition necessitates subsurface investigations to determine the occurrence and depth of aquifer layers. Accordingly, this study aims to estimate groundwater aquifer depths through the application of a one-dimensional electrical resistivity method using Vertical Electrical Sounding (VES) with a Schlumberger electrode configuration. Data acquisition was conducted at two sounding locations with a maximum half-current electrode spacing (AB/2) of 300 m. The field measurements were subsequently processed using one-dimensional inversion techniques to generate vertical resistivity distribution models. Interpretation was carried out by integrating the inversion results with characteristic resistivity ranges of lithological materials, regional geological information, and surface geological observations. The processing results at Sounding Point 1 indicate the presence of a layer with a resistivity value of approximately 31 Ωm, which is interpreted as an aquifer zone occurring at depths between 47 and 127 m below ground surface. At Sounding Point 2, a layer exhibiting a resistivity value of about 10.1 Ωm was identified and interpreted as an aquifer at depths ranging from 48 to 129 m. These variations in resistivity reflect differences in lithological characteristics and degrees of water saturation between the two locations. These findings provide an initial technical basis for determining suitable drilling depths and locations for groundwater wells and for supporting sustainable groundwater resource management in the study area. Furthermore, the results confirm that the one-dimensional resistivity method with a Schlumberger configuration represents an effective and efficient approach for groundwater exploration in regions where hydrogeological data remain limited.    
KONTROL STRUKTUR GEOLOGI TERHADAP ALTERASI DAN MINERALISASI BIJIH DAERAH HARGOSARI, KECAMATAN TIRTOMOYO, KABUPATEN WONOGIRI, PROVINSI JAWA TENGAH: STRUCTURAL CONTROLS ON ALTERATION AND ORE MINERALIZATION IN THE HARGOSARI AREA, TIRTOMOYO DISTRICT, WONOGIRI REGENCY, CENTRAL JAVA PROVINCE Andi Faesal; Wahyu Hermansyah; Aji Syailendra Ubaidillah; Z.A Munarfan Putra; Iwan Dermawan; Khatib Syarbini; Heni Pujiastuti; Melinda Dwi Erintina; Dwi Winarti; Arief Rachman Hakim; Aryaumul Patriani
Buletin Sumber Daya Geologi Vol 21 No 1 (2026): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v21i1.547

Abstract

This study evaluates the influence of geological structures on hydrothermal alteration and ore mineralization processes in the Hargosari area, Tirtomoyo District, Wonogiri Regency, Central Java. Detailed field mapping over an area of ±3 km², petrographic analysis, and structural interpretation using the Riedel shear model identify a principal mineralized zone extending approximately 1.2 km with a dominant orientation of N60°E. Mineralization is primarily controlled by strike-slip fault systems, consisting of dextral NW–SE and sinistral SW–NE faults that served as major conduits for hydrothermal fluid migration. These fluids produced quartz vein fragments and sulfide mineral assemblages dominated by pyrite, galena, sphalerite, and chalcopyrite. Secondary structures, including extensional fractures and en-echelon tension veins, developed within a transpressional regime, providing additional permeability pathways for mineralizing fluids. The Kayulawang Fault is interpreted as a pre- to syn-mineralization structure, while younger fractures represent post-mineralization deformation. Propylitic and argillic alteration zones envelop basaltic-andesitic lava bodies, reflecting multistage fluid–rock interactions associated with Plio–Pleistocene tectonic evolution. These findings underscore the critical role of strike-slip fault configuration and regional tectonic dynamics in controlling ore distribution and alteration patterns within volcanic-arc environments, offering important implications for regional mineral exploration strategies.
Co-Authors Acop Firmansyah Agus Kurniawan Andi Faesal Anggara, Taufik Muja Anggraeni, Juraedah Dwi Arief Rachman Hakim Aryaumul Patriani Azhari, Uraihan Dermawan, Iwan Dwi Winarti Faesal, Andi Farwati, Baiq Esti Mila Hakim, Muhammad Samsul HENDRA GUNAWAN B11211055 Heni Pujiastuti Heni Pujiastuti Hermansyah, Wahyu Hidayat , Syamsul Ilham, Ahmad Imam Ananda Irawan, Baiq Brilliant Vani Iwan Dermawan Iwan Dermawan Khatib Syarbini Maritsha Safa Felisa Rukayah Rukayah Rukayah Rukayah Sadam, Muh Sismanto Sismanto Susanto, Dira Syailendr, Aji SYAMSUL HIDAYAT SYAMSUL HIDAYAT Syamsul Hidayat Syarbini, Khatib Ubaidillah, Aji Syailendra Wahyu Hermansyah Wahyu Hermansyah Z.A Munarfan Putra ZA Munarfan Putra