Browse > Article
http://dx.doi.org/10.9719/EEG.2016.49.5.335

SWIR Application for the Identification of High-Grade Limestones from the Upper Pungchon Formation  

Kim, Yong-Hwi (Department of Earth and Environmental Sciences, Korea University)
Kim, Gyoo Bo (Department of Earth and Environmental Sciences, Korea University)
Choi, Seon-Gyu (Department of Earth and Environmental Sciences, Korea University)
Kim, Chang Seong (Department of Earth and Environmental Sciences, Korea University)
Publication Information
Economic and Environmental Geology / v.49, no.5, 2016 , pp. 335-347 More about this Journal
Abstract
The mineralogical and geochemical characteristics of diverse carbonate rocks can be investigated by using VNIRSWIR(visible near infrared-short wavelength infrared) spectroscopic analysis as a rapid, nondestructive, and inexpensive tool. Comparing whole rock analysis to VNIR-SWIR spectroscopic analysis, the analytical method was investigated to estimate CaO contents, mud impurity, and whiteness of carbonate rocks involved in high-grade limestones in the field. We classify typical carbonate rocks in the upper Pungchon Formation in high-grade limestone mine area such as the Gangweon, Chungmu and Baegun mine in the Jeongseon area. The results show that powdered specimen has much higher reflectance than cutted specimen between the same sample. Whiteness is highly correlated with reflectance(0.99) for powdered specimen. The absorption of mineral mixtures shifts in position as a result of the mass ratio of calcite and dolomite in the Chungmu mine by changing to 75:25, 50:50, and 25:75. The absorption peak position in carbonate mixtures is highly correlated with CaO contents(0.98~0.99). Based on color system, the carbonate rocks are grouped into (milky) white, light grey, light brown, grey, and dark grey. The absorption peak position shifts from 2340 nm to 2320 nm as CaO contents decrease from 55.86 wt.% to 29.71 wt.%. We confirmed that absorption peak position shifts depending on the amount of Ca, which is bonded to $CO{_3}^{-2}$, Mg, and Fe contents replacing Ca. This result suggests that CaO contents in carbonate rocks can be considered to quantitative analysis in the field by spectroscopic analysis.
Keywords
Pungchon Formation; carbonate rocks; high-grade limestone; SWIR spectroscopic analysis; whiteness;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 AusSpec International Ltd. (2008) Geologically-based spectral analysis guides for mineral exploration( GMEX). AusSpec International Ltd., Sydney, v.2, p.25.
2 Baissa, R., Labbassi, K., Launeau, P., Gaudin, A. and Ouajhain, B. (2011) Using HySpex SWIR-320 hyperspectral data for the identification and mapping of minerals in hand specimens of carbonate rocks from the Ankloute Formation(Agadir Basin, Western Morocco). Journal of African Earth Sciences, v.61, p.1-9.   DOI
3 Clark, R., King, T.V.V., Klejwa, M., Swayze, G.A. and Vergo, N. (1990) High spectral resolution reflectance spectroscopy of minerals. Journal of Geophysical Research: Solid Earth, v.95, p.12653-12680.   DOI
4 Gaffey, S.J. (1986) Spectral reflectance of carbonate minerals in the visible and near infrared (0.35-2.55 micron): Calcite, aragonite, and dolomite, American Mineralogist. v.71, p.151-162.
5 Hunt, G.R. (1977) Spectral signatures of particulate minerals in the visible and near infrared. Geophysics, v.42, p.501-513.   DOI
6 Je, Y.K. and Lee, E.J. (1987) Exploration and Development of the Taebaek Orebody in the Yeonwha Pb-Zn Mine. Journal of the Korean Institute of Mining Geology, v.20, p.273-288.
7 Kim, J.H. and Lee, G.M. (2000) Report of detailed survey: the Jeongseon-Yemi area. Korea Resources Corporation, Wonju, p.73.
8 Klein, C. and Dutrow, B. (2008) Manual of mineral science. 23rd, John Wiley, New York, p.635.
9 Korea Resource Corporation(KORES) (2015) Limestone, Available on https://www.kores.net/common/pdfPreview.do?fid=mineralPdf&mc_info_seq=3035.
10 Korea Institute of Geoscience and Mineral Resources (KIGAM) (2012) Demand and supply data of mineral in 2011. Korea Institute of Geoscience and Mineral Resources, Daejeon, p.95-100.
11 Noh, J.H., Oh, S.J. and Kim, K.J. (2004) Applied-mineralogical Study on the Mineral Facies and Characteristics of Domestic High-Ca Limestone. Journal of the Mineral Society of Korea, v.17, p.339-355.
12 Noh, J.H. and Oh, S.J. (2005) Hydrothermal Alteration of the Pungchon Limestone and the Formation of High-Ca Limestone. The Geological Society of Korea, v.41, p.175-197.
13 Ryu, I.C. (2003) Integrated stratigraphy approach for new additional limestone reserves in the Paleozoic Taebacksan Basin, Korea. The Korean Society of Economic and Environmental Geology, v.32, p.59-74.
14 Zaini, N., van der Meer, F. and van der Werff, H. (2012) Effect of grain size and mineral mixing on carbonate absorption features in the SWIR and TIR wavelength regions. Remote Sensing, v.4, p.987-1003.   DOI
15 Sim, M.S. and Lee, Y.I. (2006) Sequence stratigraphy of the Middle Cambrian Daegi Formation (Korea), and its bearing on the regional stratigraphic correlation. Sedimentary Geology, v.191, p.151-169.   DOI
16 Yoon, K.H. and Woo, K.S. (2006) Textural and geochemical characteristics of crystalline limestone (high-purity, limestone) in the Daegi Formation, Korea. Journal of the Geological Society of Korea, v.42, p.561-576.