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Ismawan T. -, Ismawan T.
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Environmental Science

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PERAN SESAR TERHADAP KARAKTER DAN ARAH ALIRAN AIRTANAH PADA ENDAPAN VOLKANIK DI LERENG TENGGARA G. GEDE, KABUPATEN CIANJUR, JAWABARAT -, Ismawan T.; -, Yudi Rahayudin; -, Boy Yoseph CSSSA; -, Bombom Rahmat Suganda; -, Nursiyam Barkah
Bulletin of Scientific Contribution Vol 11, No 1 (2013): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3409.64 KB) | DOI: 10.24198/bsc.v11i1.8286

Abstract

Volcano as high morphology feature acts as a good water catchment and recharge area. This area also has a volcanic deposition characteristic that changes within a near range, and usually has complex geological structures that effects the groundwater systems. The aim of this study is to identity the role of faults toward groundwater conditions, determine facies and shallow groundwater flow based on the water table. The study area is in a volcanic deposition aquifer system that is composed of lapilli tuff, volcanic breccias, and sand. The occurance of several springs with groundwater conditions are controlled by faults and fractures. Physical characteristics of the water comprises, EC=104μS/cm -490 μS/cm, TDS = 49 mg/L- 240 mg/L, pH 4,2 – 8,6, Temperature 20,4°C – 26°C, debit 0,05 L/sec up to 100 L/sec. Chemical facies of the water is divided into three types: Ca, HCO3, Ca, Mg HCO3 and Mg, Ca HCO3.The direction of the shallow groundwater flow generally follows the topographics features with a direction northwest-southeast. 
KEMENERUSAN VEIN KUBANG CICAU DI BAWAH LEVEL 500 BERDASARKAN ANALISIS KEKAR -, Ismawan T.
Bulletin of Scientific Contribution Vol 4, No 1 (2006): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.737 KB) | DOI: 10.24198/bsc.v4i1.8114

Abstract

Pongkor area is known as one of the gold mine in Java. With the reserve at present and decreasing each year a new gold reserve must be discovered.Study on structures, especially fractures on Kubang Cicau vein is conducted to discover a possiblity of Kubang Civau vein continuity below level 500.Fractures analyses along the Kubang Cicau veins shows that there are development of intens fracture arround the main vein. Based on structural evaluation result it is recommended that areas between MW1 and MW2, around MW5 and on the south of MW7 can obtain a vein with a sufficient thickness at the level 450.
Co-Authors Bombom Rahmat Suganda -, Bombom Rahmat Suganda Boy Yoseph CSSSA -, Boy Yoseph CSSSA Nursiyam Barkah -, Nursiyam Barkah Yudi Rahayudin -, Yudi Rahayudin