Next Article in Journal
Impact of Climate Change on Flood Frequency and Intensity in the Kabul River Basin
Next Article in Special Issue
The Influence of Alteration of Aggregates on the Quality of the Concrete: A Case Study from Serpentinites and Andesites from Central Macedonia (North Greece)
Previous Article in Journal
Economic Risk Evaluation in Urban Flooding and Instability-Prone Areas: The Case Study of San Giovanni Rotondo (Southern Italy)
Previous Article in Special Issue
Geochemistry and Structure of Krakatoa Volcano in the Sunda Strait, Indonesia
Open AccessArticle

Magnetic Properties of Iron Sand from the Tor River Estuary, Sarmi, Papua

Department of Physics, University of Cenderawasih, Jayapura 99358, Indonesia
Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
Author to whom correspondence should be addressed.
Geosciences 2018, 8(4), 113;
Received: 25 February 2018 / Revised: 27 March 2018 / Accepted: 27 March 2018 / Published: 30 March 2018
Information about the strategic mineral balance, published in 2013, presumed a significant amount of iron sand deposited in Sarmi, Papua, Indonesia. However, the magnetic properties of these iron sands have never been studied. Our preliminary study on the distribution of magnetic susceptibility of iron sand from the Sarmi Coast area has revealed that the iron sand from the Tor River estuary had the highest mass-specific magnetic susceptibility values with an χLF average of 3.083 ×10−5 m3/kg. We extracted the raw sand from the Tor River estuary using a mechanical magnetic extraction method and analyzed the magnetic properties and mineral composition. The magnetic susceptibility values increased significantly with an χLF average of 27.496 ×10−5 m3/kg. The chemical composition acquired from both the X-ray fluorescence and energy dispersive spectroscopy confirmed that the magnetic properties of the extracted sample originated from the high percentage of iron oxide. The hysteresis curve showed high saturation magnetization about 24.7 (emu/g), remanent magnetization of about 6.1 (emu/g) and a low coercive field of about 20 (Oe). The X-ray diffraction patterns identified a magnesioferrite (MgFe2O4) mineral structure. This result showed the novelty of iron sand from Sarmi, Papua when compared with that from Java Island. View Full-Text
Keywords: iron sand; magnetic properties; Sarmi iron sand; magnetic properties; Sarmi
Show Figures

Figure 1

MDPI and ACS Style

Togibasa, O.; Bijaksana, S.; Novala, G.C. Magnetic Properties of Iron Sand from the Tor River Estuary, Sarmi, Papua. Geosciences 2018, 8, 113.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop