Analysis of Isothermal Remanent Magnetization (IRM) data of Brantas river sediments using IRMITS program

Djody Virgiawan Ramadhan, Theresia Romauli Purba, Feninda Amalia Nabilah, Mariyanto Mariyanto*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Pollution is one of the big problems of continuous pollution in the Brantas River. The type of pollution that occurs in the sediment of a river is associated with the characteristics of its magnetic mineral. This study aims to determine the types of magnetic minerals in the Brantas River sediments. IRM data was taken from the measurement results in the Brantas River sediments. In this study, the IRMITS program is used to provides a deeper and better analysis and interpretation. From the processing results, IRMITS produces 3 graphs, namely the Linear Acquisition Plot (LAP) curve (b) the Gradient Acquisition Plot (GAP) curve; (c) Standardized Acquisition Plot (SAP) curve. From this study that has been done, it shows that magnetic minerals in the Brantas River are saturated in magnetic fields above 800mT with permanent coercivity occurring in the range 12-13 x 10-3 and z value 0 before saturation occurs. This indicates that most of the Brantas River sediments is dominated by magnetite minerals (Fe3O4).

Original languageEnglish
Article number012013
JournalJournal of Physics: Conference Series
Volume2309
Issue number1
DOIs
Publication statusPublished - 2022
Event4th International Conference on Research and Learning of Physics, ICRLP 2021 - Padang, Virtual, Indonesia
Duration: 1 Sept 20212 Sept 2021

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