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All Journal Jurnal EECCIS Journal of Innovation and Applied Technology Natural B Network Engineering Research Operation [NERO]
Sunaryo Sunaryo
Jurusan Geofisika Universitas Brawijaya
Computer Science & IT Engineering Environmental Science

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Prediction of Structure Pouch Magma Volcano Kelud Gravity Data Based Method Using Equivalent Point Mass Sandy Vikki Ariyanto; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 2, No 3 (2014)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (987.053 KB) | DOI: 10.21776/ub.natural-b.2014.002.03.4

Abstract

The observation has been done by gravity method on the date of 1 July to 12 August 2012 in the Kelud volcano area, Pare, Kediri, Blitar and Ngantang in order to determine the structure of magma pocket. Data analisis from field measurements performed with the following correcting the data includes: convert to mgal, drift correction, tidal correction, latitude correction and topography correction, then obtained a complete Bouguer anomaly values. Subsequently projected onto a flat surface (Damnpey) by using matlab program and resolve regional anomalies with anomaly residual. Qualitative interpretation is done by reading the complete Bouguer anomaly contour pattern, while the quantitative interpretation is done by creating a 2D cross section on the four A-A’, B-B’, C-C’, and D-D’ lines.Based on projection to the flat surface (Dampney) with equivalent field depth of 3500 and equivalent field height of 200 obtained convergent anomaly contour so that anomaly values become stable, based on quantitative interpretation 2D cross section model of A-A’, B-B’, C-C’ and D-D’ lines and describing structure of magma pocket. Slice anomali density contrast of A-A’ at  -2,930 gr/cm3 assumed as magma chamber with 900 meter dept while B-B’ slice at -2,910 gr/cm3assumed as magma chamber with 943 meters dept, C-C’ slice at -2,930 gr/cm3 assumed as magma chamber with 914 meters depth, and D-D’ slice at -2,930 gr/cm3 assumed as magma chamber with 943 meters depth. 
Estimation of Reservoir Rock Formation and Hood Stone in Manifestation Area of Tulehu Salahutu Healer - Ambon Island Based on Magnetic Survey Jufri Jufri; Sunaryo Sunaryo; Adi Susilo
Natural B, Journal of Health and Environmental Sciences Vol 3, No 2 (2015)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1762.556 KB) | DOI: 10.21776/ub.natural-b.2015.003.02.9

Abstract

The magnetic survey has been done in the area of geothermal manifestations Tulehu, Salahutu, Central Maluku in Ambon Island which has high temperature reservoir. The aim of this research was to know the formations reservoir and cap rock in the area of geothermal manifestations Tulehu. The measurement of data is done using magnetometer PPM type G-856, in the area of around the hot springs Hatuasa Tulehu broadly of 1.78 km x 1.25 km, which consists of 238 measuring points with spacing 50 m. Data processing to begin with IGRF correction, diurnal correction, flat surface reduction, upward continuation and reduction to the pole. Interpretation was based on three cross - section models: slice AB, BC, and DE. The modeling of the results indicates the presence of caprock formations suspected as alluvial (Qa) with susceptibility contrast 0.0102 SI to 0.0416 SI, whereas the reservoir rocks formation is suspected rocks of volcanic Ambon (Tpav) had been around demagnetization with susceptibility contrast 0.0001 SI, in the deepness of 1850 m to 2775 m the surface below.
Co-Authors Achmad Teguh Wibowo Adi Susilo Adi Susilo Adi Susilo Agus Naba Ahmad Fahrudi Setiawan Asma Naili Salsabila Bambang Susilo Dwija Wisnu Brata Erni Yudaningtyas Gatot Ciptadi Harti Umbu Mala Herditomo Herditomo Jufri Jufri KIKI FIBRIANTO M. Aziz Muslim M. Rahman Mohammad Taufan Asri Zaen Muhammad Arwani Sandy Vikki Ariyanto Umam, Busro Akramul Wahyu Kurnia Dewanto Wijono Wijono