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Geokimia (XRF) Batuan Andesit Desa Biluhu Barat, Kecamatan Biluhu, Kabupaten Gorontalo Hamid, Rinto Saputra; Arifin, Yayu Indriati; Akase, Noviar
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v3i1.35897

Abstract

This study aims to analyze the geochemical characteristics of andesite rocks within the Tinombo Formation located in Biluhu Barat Village, Biluhu District, Gorontalo Regency. Data collection was conducted through geological mapping and geochemical analysis using X-Ray Fluorescence (XRF) to determine the magma series, magma type, and tectonic setting of the rock origin. The results show that the study area consists of porphyritic andesite and granodiorite units. Geochemical data indicate that the andesite rocks belong to the calc-alkaline magma series, with rock types identified as andesite and basaltic andesite. Geochemical diagrams reveal that the rocks originated from an Island Arc Calc-Alkaline Basalt tectonic setting. The calculated magma source depth ranges from 156 to 164 km, indicating magmatic processes occurring within a subduction zone. This study contributes to a better understanding of the tectonic framework and magmatic evolution in the Gorontalo region. 
Identifikasi Akuifer Air Tanah dengan Vertical Electrical Sounding (VES) Berdasarkan Kondisi Geologi di Daerah Bulalo, Gorontalo Utara Lasahido, Moh. Syach L.; Zainuri, Ahmad; Akase, Noviar
Journal of Applied Geoscience and Engineering Vol 4, No 2 : Desember 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i2.32199

Abstract

This study aims to identify and understand the geological characteristics and groundwater aquifer potential in the study area. The research methods employed include surface geological mapping, borehole data interpretation, as well as lithology and structural geology analysis. The results indicate that the geological formations in the study area are predominantly composed of sedimentary and volcanic rocks with significant lithological variations, such as sandstone, claystone, and tuff. The identified geological structures, including folds and faults, influence the distribution of aquifers and groundwater flow. Aquifers in the study area are categorized into unconfined and confined aquifers, with the highest potential found in sandstone layers due to their high porosity and permeability. These findings are expected to serve as an important foundation for the sustainable management of groundwater resources in the study area.
Identifikasi Lapisan Akuifer Berdasarkan Survei Geolistrik Konfigurasi Schlumberger di Desa Botumoputi, Kabupaten Gorontalo Sahidah, Aril A.H; Zainuri, Ahmad; Akase, Noviar
Journal of Applied Geoscience and Engineering Vol 4, No 2 : Desember 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i2.36986

Abstract

A continuously growing population day by day means that the need for water is also increasing.The majority of the Botumoputi Village community uses groundwater every day through dug wells and drilled wells for their daily needs. The purpose of the study was to determine the subsurface geological conditions that can be used as a reference in estimating the location, thickness, depth and type of aquifer. The method used is the resistivity geoelectric method using the Schlumberger configuration. Measurements were carried out at 3 points with a span length of 300 m each. Data processing and interpretation using software IPI2win. The results of processing Schlumberger configuration geoelectric data and subsurface geological interpretation to identify the type of groundwater aquifer in the Botumoputi area show 3 layers of rock types based on their resistivity values, namely top soil, clay and sand. It is estimated that the potential for groundwater is found in TS1 and TS2 where the lithology that acts as an aquifer is sandstone with a resistivity value of 16.8 - 42.7 ohms with a depth ranging from 3.93 - 17.2 m with a thickness of 8.88 - 13.27 m and is interpreted as a shallow aquifer.