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Rukayah Rukayah
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Journal : Journal La Multiapp

 1 
Geotechnical Analysis of Mining Based on Topography and Geomorphology for Estimation of Limestone Resources and Reserves Rukayah, Rukayah
Journal La Multiapp Vol. 7 No. 1 (2026): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v7i1.2958

Abstract

Reef limestone is an industrial mineral with high economic value that is widely utilized in construction and cement industries. North Moyo District, Sumbawa Regency, contains tectonically uplifted limestone deposits, yet quantitative assessments of rock mass continuity and resource–reserve estimation remain limited. This study aims to identify geological characteristics, lithology, and fracture structures, and to estimate limestone resources and reserves using digital three-dimensional modeling. The research was conducted using a descriptive, geotechnical, and quantitative approach through the collection of primary data, including outcrop observations, elevation measurements, and fracture mapping, as well as secondary data such as regional geological maps, geomorphological information, and satellite imagery. Surface elevation data were processed using three-dimensional modeling to generate existing and design pit surfaces, and volumetric analysis was performed using the cut and fill method. Resource classification was divided into inferred, indicated, and measured categories, while reserve estimation applied a loss factor correction. The results show that the reef limestone exhibits a massive structure, porous texture, and fossil fragments with an effective thickness exceeding five meters. Fracture patterns are dominated by northwest–southeast and northeast–southwest orientations, consistent with regional tectonics. The estimated measured resource volume is 234,977 cubic meters, while proven reserves reach 226,643 cubic meters after correction. The limestone demonstrates strong lateral and vertical continuity, indicating a stable and homogeneous rock mass suitable for quarry mining. Three-dimensional modeling effectively represents field conditions and confirms the potential of reef limestone as a sustainable industrial material in North Moyo District.
Co-Authors Abd Kadir, Abd Abd. Kadir Afifah, Laela Nur Husnun Ahmad, Hariyatunnisa Andani, Evi Anis, Moh. Badiul Ayuni, Nurul Alifa Bambang Ismanto Dilla, Nadila Endang Sri Markamah, Endang Sri Fajrin, Andi Aulia Faqrasyia, Muqhni Fauzi, Azra Fauzi, Irfan Sholeh Febyola, Isna Firdaus Firdaus Fitriani Fitriani Fitriani, Dyah Hadi Mulyono Jafar, Muh. Idris Joko Daryanto Karsono Karsono Lorensa, A. Erna Margiyani, Linda Melinda Dwi Erintina Mintasih Indriayu, Mintasih mirza basyiruddin Muhammad Amin Muhammad Idris Muhammad Munif Syamsudin, Muhammad Munif Muhammad Yani, Muhammad Mujahidah Mujahidah Muliadi Mumang, Andi Sri Wahyuni Nila Lestari Ningsih, Srihandayani Noor Azizah Nugrahini Kusumawati Nur, Muhammad Awal Nurul Amalia Nuswantari, F S Palupi, Bening Sri Peni Rahayu, Peni Purwoko, Agus Putri, Alma Fadilla Radaiyah, Radaiyah Raden Irna Afriani Retno Winarni Rhamadani, Nur Auliya Riri Trinanda Risma Sari, Risma Roemintoyo Roemintoyo Rosmalah Rosmalah, Rosmalah Sakinah, Amely Indah Saputri, Dwi Yuniasih Sarifah Hasdaniah, Sarifah Satriani Satriani Serliyantirahbi, Serliyantirahbi Sitti Jauhar Sitti Jauhar, Sitti sitti rahmi, sitti Slamet Subiyantoro Sudarto Sudarto Sudirman Sudirman Syailendr, Aji Syamdianita Syamdianita, Syamdianita Tri Budiharto Tussadia, Radia Wibowo, Syahriar Ardanto Wiraman, Mahdum Yahya, Ayyas Yulianti, Lilis