Thermomagnetic Analysis of the Lake Matano Sediments and the Surrounding Lateritic Soils, South Sulawesi, Indonesia

Silvia Jannatul Fajar (Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia)
Gerald Tamuntuan (Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Kampus Unsrat, Manado 95115, Indonesia)
Satria Bijaksana (Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia)
James Russell (Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence 02912, USA)

Jurnal Geofisika
Vol 16 No 2 (2018): Jurnal Geofisika

Thermomagnetic is one of the most commonly used measurements for determining the dominant type of magnetic mineral of samples. The measurement is separated into two distinct processes, heating and cooling. The sample susceptibility is measured for each temperature change, i.e., from room temperature to 700oC and vice-versa. Based on the thermomagnetic measurement results, magnetite is found to be the predominant magnetic minerals in Lake Matano sediments. The present study applied a correlation analysis technique on the results of thermomagnetic measurement of Lake Matano sediments and compared the result to that of lateritic soils to indicate whether a diagenetic process has occurred on the lake sediments.