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Rudarsko-geološko-naftni Zbornik
Scopus
ISSN 1849-0409 · University of Zagreb · 910 artikel di indeks
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Artikel Jurnal
GREEN ENERGIZE: UNLEASHING A SAMBA BIOPOLYMER FOR ENHANCED OIL RECOVERY
Background: Several challenges exist in obtaining an optimal biopolymer material that is cost-effective, resilient under harsh conditions, and environmentally friendly. Currently, only xanthan and Schizophyllan biomaterials have been applied at a field scale. This study introduces a novel Samba…
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Artikel Jurnal
RAM MEASURE OF HYDRAULIC POWERED ROOF SUPPORTS IN UNDERGROUND LONGWALL COAL MINES
Mining operations in underground coal mines, particularly those using the longwall method, require continuous progress and the avoidance of interruptions, as any stoppage can lead to roof collapse. Given the mechanization of coal mining and the underground extraction of this mineral, the use of…
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Artikel Jurnal
REMOTE SENSING OF RADIOACTIVE ALTERATION ZONES USING SENTINEL-2 AND SPAD CHLOROPHYLL MEASUREMENTS IN MAMUJU, INDONESIA
This study investigates natural radioactive mineralization (uranium–thorium) in Mamuju, West Sulawesi, particularly within the fault-controlled Adang Volcanics, an area known for anomalous natural radiation. The objective was to evaluate vegetation stress as a proxy for radioactive mineralization…
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Artikel Jurnal
FALL CONE TEST CALIBRATION FOR SLOPE STABILITY ANALYSIS
Undrained shear strength is considered as an essential factor to assess the stability of natural slopes and embankments. Traditionally, this parameter is determined through laboratory tests, which are often costly and time-consuming. Recently, geotechnical research has shifted toward using the Fall…
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Artikel Jurnal
MAGNETIC CHARACTERISTICS AND MINERALOGY OF CAVE SEDIMENTS FROM SOLEK CAVE, WEST SUMATRA: IMPLICATIONS FOR PALEOENVIRONMENTAL PROCESSES WITHIN THE CAVE
Cave sediments are essential as they preserve valuable archives of past environmental and climate conditions that physical and chemical measurements can reveal. In this study, we explore the magnetic characteristics of the cave sediments collected from Solek Cave, West Sumatra, Indonesia to…
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Artikel Jurnal
ORE GENESIS AND HYDROTHERMAL EVOLUTION OF THE CHESHMEH-HADI STRATABOUND (MANTO-TYPE) COPPER DEPOSIT IN THE VOLCANIC-PLUTONIC BELT NORTH OF THE DORUNEH FAULT, EAST OF THE SEPID-SARVE COPPER DEPOSIT (NW BARDESKAN, CENTRAL IRAN): EVIDENCE FROM GEOLOGY, GEOCHEMISTRY, FLUID INCLUSIONS, AND STABLE S AND O ISOTOPES
The Cheshmeh-Hadi copper deposit is part of an Eocene volcano-sedimentary sequence located in the southern Sabzevar Zone. The lithostratigraphic sequence, from oldest to youngest, comprises basalt, basaltic andesite, andesite and pyroxene andesite, conglomerate, limestone, siltstone, gypsiferous…
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Artikel Jurnal
ENHANCING HYPOCENTER RELOCATION FOR SEISMIC HAZARD EVALUATION IN CENTRAL JAVA AND YOGYAKARTA INDONESIA: FINDINGS FROM THE BMKG EARTHQUAKE CATALOG OF AUGUST-OCTOBER 2024
We present a hypocenter relocation analysis to examine the distribution of seismicity in the Central Java and Yogyakarta regions in Indonesia. The data were obtained from the BMKG earthquake database for the period August–October 2024, covering the area between 6.0˚–11.0˚ S and 108.5˚–111.6˚ E. The…
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Artikel Jurnal
GEOCHEMISTRY AND GENESIS OF THE MANGANESE ORES IN THE NAWAGAI OPHIOLITIC MELANGE, MOHMAND DISTRICT, KHYBER PAKHTUNKHWA, PAKISTAN
The Nawagai ophiolitic melange is present in the western part of the Main Mantle Thrust /Indus Suture Zone (MMT/ISZ) in northern Pakistan and is considered as a part of the fold belt that contains ophiolitic sequences. The studied manganese ore bodies are present in the Nawagai ophiolitic melange…
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Artikel Jurnal
ENHANCED DESORPTION OF COBALT FROM CONTAMINATED SANDY SILTY-CLAY SOILS
In the present study, we investigated the potential for enhancing the desorption of cobalt contamination in a sandy silty-clay soil contaminated with Cobalt(II)-chloride-hexahydrate. In soils containing silt–clay fractions, effective remediation is primarily prevented by strong surface binding and…
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Artikel Jurnal
STRESS TRANSFER AND SEISMICITY ALONG THE SOUTHERN GREAT SUMATRAN FAULT: INSIGHTS FROM THE 1994 LIWA EARTHQUAKE
The February 15, 1994 Mw 6.8 Liwa earthquake ruptured the southern Great Sumatran Fault (GSF), yet its static stress legacy and relation to subsequent seismicity remain weakly quantified. We integrate high-precision double-difference relocation with Coulomb failure stress (ΔCFS) modelling to…
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Artikel Jurnal
GEOGRAPHIC INFORMATION SYSTEM APPLICATION FOR PROSPECTING THE SANDSTONE-TYPE URANIUM DEPOSIT IN THE MELAWI REGION, WEST KALIMANTAN, INDONESIA
The Melawi region in Indonesia has been identified as a metamorphic-hosted uranium deposit. The occurrence of sedimentary formations in the downstream area suggests the potential for sandstone-type uranium deposits. Previous studies have concentrated on metamorphic-hosted mineralization, resulting…
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Artikel Jurnal
SEISMOGENIC ANALYSIS OF THE 2023 MW6.9 MURGHOB EARTHQUAKE, TAJIKISTAN, BASED ON MULTI-TRACK INSAR AND MODELLING
This study investigates the 2023 Murghob Earthquake in Tajikistan (Mw 6.9) using modelling and multi-track InSAR techniques to analyze the surface deformation and fault dynamics. The modelling approach using Pyrocko produced observation, model, and residual images, each revealing aspects of the…
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Artikel Jurnal
EXPERIMENTAL INVESTIGATION OF THE EFFECTS OF TEMPERATURE AND OIL COMPOSITION ON CO2-CRUDE OIL SWELLING, EXTRACTION MECHANISMS, AND DISPLACEMENT PERFORMANCE
CO₂ flooding has several advantages for enhancing oil recovery, including a reduction in crude oil viscosity, a decrease in interfacial tension, and an increase in oil volume through swelling. Although the mechanisms of oil swelling and extraction in CO₂–crude oil systems have been widely studied…
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Artikel Jurnal
DATA-DRIVEN AND KNOWLEDGE-DRIVEN MARCOS METHOD TO CU PORPHYRY PROSPECTIVITY MODELLING, A CASE STUDY, SHAHR-E-BABAK AREA, SOUTHEASTERN IRAN
The present study aims to compare the performance of data-driven and knowledge-driven Multi-Criteria Decision-Making (MCDM) in producing a mineral potential model in the Shahr e-Babak study area in south-eastern Iran. To achieve this goal, eight evidential layers, including geological, Cu…
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Artikel Jurnal
INTEGRATED MATHEMATICAL AND PHYSICAL MODELLING OF SALT IONS LEACHING FROM COAL MINING WASTE: IMPLICATIONS FOR ECOLOGICAL SAFETY AND CIVIL PROTECTION
Coal-mining waste heaps represent a significant source of dissolved salts that can be mobilized by precipitation, posing risks to ecological safety and civil protection. This study focuses on the Chervonohrad Central Concentration Plant spoil heap in western Ukraine, where both thermally altered…
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Artikel Jurnal
PREDICTING THE WEIGHT AND TYPE OF DRILLING MUD BY MACHINE LEARNING METHOD
Selecting the optimal drilling fluid, defined by its weight and chemical type, is critical for preventing costly wellbore instability and catastrophic accidents. Traditional methods often rely on trial-and-error, past experience or simplified models that fail to capture the complex rock-fluid…
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Artikel Jurnal
EVALUATION OF A NEW COMPOSITION FOR ENHANCED DEMULSIFICATION AND DEPOSIT CONTROL IN RESINOUS HEAVY OIL EMULSIONS
This study investigates the demulsification performance, deposit formation tendencies, and rheological behaviour of highly resinous crude oils and their blended systems using both an individual demulsifier and a newly formulated laboratory composition. Crude oils X (27% water), Y (32% water), and Z…
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Artikel Jurnal
COMPARATIVE ANALYSIS OF THE PERFORMANCE OF PALM OIL MES SURFACTANT AND PINE WOOD SLS SURFACTANT ON BEREA SANDSTONE IN THE IMBIBITION PROCESS USING NEUTRON COMPUTED TOMOGRAPHY APPLICATION
Surfactant flooding is one of the enhanced oil recovery (EOR) methods aimed at increasing crude oil production in Indonesia. This method is implemented after primary and secondary recovery phases, by reducing the interfacial tension (IFT) in reservoir system, when a significant amount of oil…
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Artikel Jurnal
SEISMIC MICROZONATION BASED ON MICROTREMOR DATA FOR MAPPING THE DAMAGE CAUSED BY AN EARTHQUAKE ON BAWEAN ISLAND, GRESIK, EAST JAVA, INDONESIA
Bawean Island in Gresik is classified as an earthquake-prone area due to fault activity in the Java Sea. An example was the earthquake of March 22nd, 2024, which damaged thousands of houses and displaced tens of thousands of residents. The focus of this research is to carry out seismic…
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Artikel Jurnal
INTEGRATED GRAVITY–SEISMICITY APPROACH TO FAULT MAPPING IN THE SUOH DEPRESSION, SUMATRA
The Suoh Depression (West Lampung, southern Sumatra) is an active volcanic basin along the Great Sumatran Fault (GSF), characterized by high seismicity and active geothermal manifestations. This study integrates satellite gravity data and regional seismicity to delineate the subsurface fault…