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All Journal Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Journal of Sciencce Technology and Visual Culture Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Yuniarti Ulfa
School of Physics, Universiti Sains Malaysia
Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Materials Science & Nanotechnology Social Sciences

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Journal : Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir

 1 
FACIES ANALYSIS, SEDIMENTOLOGY AND PALEOCURRENT OF THE QUATERNARY NENERING FORMATION, PENGKALAN HULU, MALAYSIA Ulfa, Yuniarti; Rong Yu, Evonne Hooi; Kit, Ooi Cheng
Eksplorium Buletin Pusat Teknologi Bahan Galian Nuklir Vol 35, No 2 (2014): November 2014
Publisher : Pusat Teknologi Bahan Galian Nuklir - BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (30.019 KB)

Abstract

Nenering Formation is essentially made up of semi-consolidated sediments, which are divided into basal conglomerate beds, conglomeratic sandstone, cross-bedded sandstone, and siltstone to muddy layers facies. It is overlie unconformable to the Berapit Formation, but conformable to the Kroh and Grik Formations. The stratigraphy of Nenering Formation is a fining upwards sequence where the thickness of conglomerate beds become thinner upwards and become thicker for conglomeratic sandstone. The thickness varies from 0.5 m to tenths of meters. The more sandy in the upper portion (cross-bedded sandstone) overlie with thin siltstone and mudstone facies. The clast and grain composition suggested that the material making up the sedimentary sequence were derived predominantly from the erosion of granitoid rocks and sedimentary and metamorphic rocks constitute a minor provenance. Imbrications and the trend sizes of clasts indicate that the palaeo-current flow toward northeast. Cross bedding that was found in conglomerate and sandstone indicates the main channel depositional environment. The sequence stratigraphy of this area match with the Saskatchewan fluvial braided channel model. Keywords: conglomerate, facies, fluvial, paleocurrent, stratigraphy, sedimentology
Geology and Land Suitability Analysis for Final Processing Waste Site in Ambon Island Mailoa, Winardcova Vania Cerwyn; Kololu, Micky; Ulfa, Yuniarti; Puradimadja, Deni Juanda
EKSPLORIUM Vol 45, No 1 (2024): May 2024
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/eksplorium.2024.7042

Abstract

From 2017 to 2021, waste production in Ambon City increased from 200 tons/day to 297 tons/day, but the condition of the Toisapu landfill in Ambon did not support this. Toisapu landfill, which has been operating since 2007, is now in overload status and needs to be re-evaluated because it is on a slope of >20% and is located close to residential areas. This research aims to find an alternative replacement for the Toisapu landfill with the status of a Waste Processing and Final Processing Site that complies with Indonesian National Standards. This research uses an environmental geology approach based on Spatial Multi-Criteria Evaluation (SMCE), which combines geological and non-geological parameters. The analysis results for each parameter are overlaid, given a value, and then totaled to produce the most feasible land. The results of this research show that the most suitable land is in Wakal with an area of 126,668 ha. The permeability of this location is low, with the groundwater being quite deep (>80 meters), so there is little chance of leachate seepage contaminating the groundwater. In contrast to the Toisapu landfill, Wakal has a slope of <20%, far from protected forests and where residents live.
Co-Authors Ananta Purwoarminta, Ananta Deny Juanda Puradimaja Evonne Hooi Rong Yu Evonne Hooi Rong Yu, Evonne Hooi Rong Hafizzy , Mohd Hafiz Jacob, Grace Christien Julian Jati, Stevandrus Nalendra Kololu, Micky Mailoa, Winardcova Vania Cerwyn Matrutty, Michelle Theodora Muhammad Farhan Nasiman Sapari, Nasiman Ooi Cheng Kit Puradimadja, Deni Juanda Resti Limehuwey, Resti Stevanus Nalendra Jati Tuasikal, Hawa Zuhar Zahir Tuan Harith