{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T23:01:59Z","timestamp":1769641319179,"version":"3.49.0"},"reference-count":64,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2021,3,1]],"date-time":"2021-03-01T00:00:00Z","timestamp":1614556800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014188","name":"Ministry of Science and ICT, South Korea","doi-asserted-by":"publisher","award":["21-3211"],"award-info":[{"award-number":["21-3211"]}],"id":[{"id":"10.13039\/501100014188","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008783","name":"National Research Council of Science and Technology","doi-asserted-by":"publisher","award":["CRC-15-06-KIGAM"],"award-info":[{"award-number":["CRC-15-06-KIGAM"]}],"id":[{"id":"10.13039\/501100008783","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>This study produces alteration mineral maps based on WorldView-3 (WV-3) data and field shortwave-infrared (SWIR) spectroscopy. It is supported by conventional analytical methods such as X-ray diffraction, X-ray fluorescence, and electron probe X-ray micro analyzer as an initial step for mineral exploration in eastern Tsogttsetsii, Mongolia, where access is limited. Distributions of advanced argillic minerals (alunite, dickite, and kaolinite), illite\/smectite (illite, smectite, and mixed-layered illite-smectite), and ammonium minerals (buddingtonite and NH4-illite) were mapped using the decorrelation stretch, band math, and mixture-tuned-matched filter (MTMF) techniques. The accuracy assessment of the WV-3 MTMF map using field SWIR data showed good WV-3 SWIR data accuracy for spectrally predominant alteration minerals such as alunite, kaolinite, buddingtonite, and NH4-illite. The combination of WV-3 SWIR mineral mapping and a drone photogrammetric-derived digital elevation model contributed to an understanding of the structural development of the hydrothermal system through visualization of the topographic and spatial distribution of surface alteration minerals. Field SWIR spectroscopy provided further detailed information regarding alteration minerals such as chemical variations of alunite, crystallinity of kaolinite, and aluminum abundance of illite that was unavailable in WV-3 SWIR data. Combining WV-3 SWIR data and field SWIR spectroscopy with conventional exploration methods can narrow the selection between deposit models and facilitate mineral exploration.<\/jats:p>","DOI":"10.3390\/rs13050914","type":"journal-article","created":{"date-parts":[[2021,3,1]],"date-time":"2021-03-01T10:25:18Z","timestamp":1614594318000},"page":"914","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Mapping Alteration Mineralogy in Eastern Tsogttsetsii, Mongolia, Based on the WorldView-3 and Field Shortwave-Infrared Spectroscopy Analyses"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5727-0023","authenticated-orcid":false,"given":"Young-Sun","family":"Son","sequence":"first","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"given":"Byoung-Woon","family":"You","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"given":"Eun-Seok","family":"Bang","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"given":"Seong-Jun","family":"Cho","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"given":"Kwang-Eun","family":"Kim","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9282-6947","authenticated-orcid":false,"given":"Hyunseob","family":"Baik","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]},{"given":"Hyeong-Tae","family":"Nam","sequence":"additional","affiliation":[{"name":"Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,1]]},"reference":[{"key":"ref_1","first-page":"245","article-title":"Exploration for epithermal gold deposits","volume":"13","author":"Hedenquist","year":"2000","journal-title":"Rev. Econ. Geol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3","DOI":"10.2113\/gsecongeo.105.1.3","article-title":"Porphyry copper systems","volume":"105","author":"Sillitoe","year":"2010","journal-title":"Econ. Geol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"115868","DOI":"10.1016\/j.epsl.2019.115868","article-title":"How to make porphyry copper deposits","volume":"529","author":"Lee","year":"2020","journal-title":"Earth Planet. Sci. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"981","DOI":"10.2113\/gsecongeo.101.5.981","article-title":"Alteration mineralogy at the Cerro La Mina epithermal prospect, Patagonia, Argentina: Field mapping, short-wave infrared spectroscopy, and ASTER images","volume":"101","author":"Ducart","year":"2006","journal-title":"Econ. Geol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1130\/GES00044.1","article-title":"Regional mapping of phyllic-and argillic-altered rocks in the Zagros magmatic arc, Iran, using Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) data and logical operator algorithms","volume":"2","author":"Mars","year":"2006","journal-title":"Geosphere"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1365","DOI":"10.2113\/econgeo.106.8.1365","article-title":"Exploration tools for linked porphyry and epithermal deposits: Example from the Mankayan intrusion\u2013centered Cu\u2013Au district, Luzon. Philippines","volume":"106","author":"Chang","year":"2011","journal-title":"Econ. Geol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1017\/S0954102010000015","article-title":"Assessing the potential of multispectral remote sensing for lithological mapping on the Antarctic Peninsula: Case study from eastern Adelaide Island, Graham Land","volume":"22","author":"Haselwimmer","year":"2010","journal-title":"Antarct. Sci."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1016\/j.asr.2010.08.021","article-title":"Mineral mapping in the Kap Simpson complex, central East Greenland, using HyMap and ASTER remote sensing data","volume":"47","author":"Bedini","year":"2011","journal-title":"Adv. Space Res."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"103106","DOI":"10.1016\/j.oregeorev.2019.103106","article-title":"Regional mineral mapping of island arc terranes in southeastern Mongolia using multispectral remote sensing data","volume":"113","author":"Son","year":"2019","journal-title":"Ore Geol. Rev."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/S0169-1368(99)00007-4","article-title":"Remote sensing for mineral exploration","volume":"14","author":"Sabins","year":"1999","journal-title":"Ore Geol. Rev."},{"key":"ref_11","first-page":"205","article-title":"Lithological and mineralogical survey of the Oyu Tolgoi region, Southeastern Gobi, Mongolia using ASTER reflectance and emissivity data","volume":"26","author":"Son","year":"2014","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"489","DOI":"10.5382\/econgeo.2018.4559","article-title":"Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the Eastern Alaska Range","volume":"113","author":"Graham","year":"2018","journal-title":"Econ. Geol."},{"key":"ref_13","first-page":"112","article-title":"Multi- and hyper-spectral geologic remote sensing: A review","volume":"14","author":"Hecker","year":"2012","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.rse.2005.04.025","article-title":"Seamless geological map generation using ASTER in the Broken Hill-Curnamona province of Australia","volume":"99","author":"Hewson","year":"2005","journal-title":"Remote Sens. Environ."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Abrams, M., and Yamaguchi, Y. (2019). Twenty years of ASTER contributions to lithologic mapping and mineral exploration. Remote Sens., 11.","DOI":"10.3390\/rs11111394"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2688","DOI":"10.3390\/rs5062688","article-title":"Mineral mapping using simulated worldview-3 short-wave infrared imagery","volume":"5","author":"Kruse","year":"2013","journal-title":"Remote Sens."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2011","DOI":"10.1016\/j.rse.2010.04.008","article-title":"Spectral assessment of new ASTER SWIR surface reflectance data products for spectroscopic mapping of rocks and minerals","volume":"114","author":"Mars","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Biggar, S.F., Thome, K.T., MacCorkel, J.T., and D\u2019Amico, J.M. (2005, January 22). Vicarious calibration of the ASTER SWIR sensor including crosstalk correction. Proceedings of the SPIE 5882: Earth observing Systems, San Diego, CA, USA.","DOI":"10.1117\/12.620090"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"2747","DOI":"10.1109\/TGRS.2005.855066","article-title":"Validation of a crosstalk correction algorithm for ASTER\/SWIR","volume":"43","author":"Iwasaki","year":"2005","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Ye, B., Tian, S.H., Ge, J., and Sun, Y. (2017). Assessment of WorldView-3 data for lithological mapping. Remote Sens., 9.","DOI":"10.3390\/rs9111132"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1117\/1.JRS.9.096044","article-title":"Validation of DigitalGlobe Worldview-3 earth imaging satellite shortwave infrared bands for mineral mapping","volume":"9","author":"Kruse","year":"2015","journal-title":"J. Appl. Remote Sens."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1587","DOI":"10.5382\/econgeo.2018.4604","article-title":"Mineral and lithologic mapping capability of WorldView 3 data at Mountain Pass, California, using true and false-color composite images, band ratios, and logical operator algorithms","volume":"113","author":"Mars","year":"2018","journal-title":"Econ. Geol."},{"key":"ref_23","first-page":"156","article-title":"Large-scale mapping of iron oxide and hydroxide minerals of Zefreh porphyry copper deposit, using Worldview-3 VNIR data in the northeastern Isfahan, Iran","volume":"73","author":"Salehi","year":"2018","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"3346","DOI":"10.1016\/j.asr.2019.01.047","article-title":"Application of WorldView-3 imagery and ASTER TIR data to map alteration minerals associated with the Rodalquilar gold deposits, southeast Spain","volume":"63","author":"Bedini","year":"2019","journal-title":"Adv. Space Res."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1081","DOI":"10.1016\/S0098-3004(00)00153-9","article-title":"Mineral identification using artificial neural networks and the rotating polarizer stage","volume":"27","author":"Thompson","year":"2001","journal-title":"Comput. Geosci."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1016\/j.infrared.2018.06.026","article-title":"Comparison assessment of low rank sparse-PCA based-clustering\/classification for automatic mineral identification in long wave infrared hyperspectral imagery","volume":"93","author":"Yousefi","year":"2018","journal-title":"Infrared Phys. Technol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"106409","DOI":"10.1016\/j.mineng.2020.106409","article-title":"Assessing the reliability of an automated system for mineral identification using LWIR Hyperspectral Infrared imagery","volume":"155","author":"Yousefi","year":"2020","journal-title":"Miner. Eng."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"384","DOI":"10.1016\/j.oregeorev.2018.07.017","article-title":"Hydrothermally altered mineral mapping using synthetic application of Sentinel-2A MSI, ASTER and Hyperion data in the Duolong area, Tibetan Plateau, China","volume":"101","author":"Hu","year":"2018","journal-title":"Ore Geol. Rev."},{"key":"ref_29","first-page":"1537","article-title":"Re-Os ages for the Erdenet and Tsagaan Suvarga porphyry Cu-Mo deposits, Mongolia, and tectonic implications","volume":"95","author":"Watanabe","year":"2000","journal-title":"Econ. Geol."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1407","DOI":"10.2113\/gsecongeo.96.6.1407","article-title":"Siluro-Devonian porphyry Cu-Au-(Mo) and high-sulfidation Cu mineralization with a Cretaceous chalcocite blanket","volume":"96","author":"Perello","year":"2001","journal-title":"Econ. Geol."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"707","DOI":"10.1007\/s00126-010-0302-y","article-title":"Trace elements and cathodoluminescence of quartz in stockwork veins of Mongolian porphyry-style deposits","volume":"45","author":"Herrington","year":"2010","journal-title":"Miner. Depos."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1016\/j.jseaes.2009.10.004","article-title":"Magmatism of the Shuteen Complex and Carboniferous subduction of the Gurvansaikhan terrane, South Mongolia","volume":"37","author":"Batkhishig","year":"2010","journal-title":"J. Asian Earth Sci."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1179","DOI":"10.2113\/econgeo.109.5.1179","article-title":"Mapping advanced argillic alteration at cuprite, Nevada, using imaging spectroscopy","volume":"109","author":"Swayze","year":"2014","journal-title":"Econ. Geol."},{"key":"ref_34","unstructured":"Jamiyandorj, O., and Zoljargal, A. (2010). Geological Map of Mongolia, Ikh Luusiin Uul Sheet K-48-V (1:200,000 Scale), Mineral Resources Authority of Mongolia."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"292","DOI":"10.1016\/S0034-4257(98)00039-X","article-title":"Quantitative geochemical mapping of ammonium minerals in the southern cedar mountains, Nevada, using the airborne visible\/infrared imaging spectrometer (AVIRIS)","volume":"65","author":"Baugh","year":"1998","journal-title":"Remote Sens. Environ."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/S0377-0273(00)00264-X","article-title":"Characterising the hydrothermal alteration of the Broadlands\u2013Ohaaki geothermal system, New Zealand, using short-wave infrared spectroscopy","volume":"106","author":"Yang","year":"2001","journal-title":"J. Volcanol. Geother. Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"865","DOI":"10.2113\/gsecongeo.103.4.865","article-title":"Identification of ammonium bearing minerals by shortwave infrared reflectance spectroscopy at the Esquel gold deposit, Argentina","volume":"103","author":"Soechting","year":"2008","journal-title":"Econ. Geol."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1016\/j.geothermics.2014.05.012","article-title":"Combining ammonium mapping and short-wave infrared (SWIR) reflectance spectroscopy to constrain a model of hydrothermal alteration for the Acoculco geothermal zone, Eastern Mexico","volume":"53","author":"Canet","year":"2015","journal-title":"Geothermics"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., and Driscoll, R.L. (2017). USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, U.S. Geological Survey.","DOI":"10.3133\/ds1035"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.geothermics.2018.01.006","article-title":"Short-wave Infrared (SWIR) reflectance spectrometric characterisation of clays from geothermal systems of the Taupo volcanic zone, New Zealand","volume":"73","author":"Simpson","year":"2018","journal-title":"Geothermics"},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Congalton, R.G., and Green, K. (2009). Assessing the Accuracy of Remotely Sensed Data: Principles and Practices, CRC\/Taylor & Francis. [2nd ed.].","DOI":"10.1201\/9781420055139"},{"key":"ref_42","unstructured":"Kuester, M.A. (2016). Radiometric Use of WV-3 Imagery, DigitalGlobe. Technical Note."},{"key":"ref_43","unstructured":"Kuester, M., and Ochoa, T. (2019). Improvements in Calibration, and Validation of the Absolute Radiometric Response of MAXAR Earth-Observing Sensors, Joint Agency Commercial Imagery Evaluation (JACIE) Workshop."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/0034-4257(88)90004-1","article-title":"Use of airborne imaging spectrometer data to map minerals associated with hydrothermally altered rocks in the northern grapevine mountains, Nevada, and California","volume":"24","author":"Kruse","year":"1988","journal-title":"Remote Sens. Environ."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"683","DOI":"10.1080\/01431169408954107","article-title":"The relationship between the size of spatial subsets of GER 63 channel scanner data and the quality of the Internal Average Relative Reflectance (IARR) atmospheric correction technique","volume":"15","author":"Kruse","year":"1994","journal-title":"Int. J. Remote Sens."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"2409","DOI":"10.1080\/01431161003698336","article-title":"Hyperspectral remote sensing for mineral exploration in Pulang, Yunnan Province, China","volume":"32","author":"Bishop","year":"2011","journal-title":"Int. J. Remote Sens."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"73","DOI":"10.1016\/j.oregeorev.2018.02.021","article-title":"Reflectance spectroscopy and ASTER based mapping of rock-phosphate in parts of Paleoproterozoic sequences of Aravalli Group of rocks, Rajasthan, India","volume":"108","author":"Guha","year":"2019","journal-title":"Ore Geol. Rev."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1016\/0034-4257(86)90044-1","article-title":"Color enhancement of highly correlated images: I. Decorrelation and HIS contrast stretches","volume":"20","author":"Gillespie","year":"1986","journal-title":"Remote Sens. Environ."},{"key":"ref_49","first-page":"326","article-title":"Mapping rock forming minerals at Boundary Canyon, Death Valey National Park, California, using aerial SEBASS thermal infrared hyperspectral image data","volume":"64","author":"Aslett","year":"2018","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/0034-4257(89)90021-7","article-title":"Airborne imaging spectrometer data of the Ruby Mountains, Montana: Mineral discrimination using relative absorption band-depth images","volume":"29","author":"Crowley","year":"1989","journal-title":"Remote Sens. Environ."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"350","DOI":"10.1016\/S0034-4257(02)00127-X","article-title":"Lithologic mapping in the Mountain Pass, California area using Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) data","volume":"84","author":"Rowan","year":"2003","journal-title":"Remote Sens. Environ."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/j.rse.2005.06.009","article-title":"Detecting lithology with Advanced Spaceborne Thermal Emission and Reflectance Radiometer (ASTER) multispectral thermal infrared radiance-at-sensor data","volume":"99","author":"Ninomiya","year":"2005","journal-title":"Remote Sens. Environ."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"4138","DOI":"10.1109\/TGRS.2011.2161585","article-title":"Analysis of imaging spectrometer data using N-Dimensional geometry and a mixture-tuned matched filtering approach","volume":"49","author":"Boardman","year":"2011","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_54","first-page":"287","article-title":"Hyperspectral remote sensing applied to mineral exploration in southern Peru: A multiple data integration approach in the Chapi Chiara gold prospect","volume":"64","author":"Carrino","year":"2018","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1016\/j.gexplo.2016.07.002","article-title":"Hyperspectral remote sensing applied to uranium exploration: A case study at the Mary Kathleen metamorphic-hydrothermal U-REE deposit, NW, Queensland, Australia","volume":"179","author":"Salles","year":"2016","journal-title":"J. Geochem. Explor."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/0377-0273(90)90057-M","article-title":"Petrology of Philippine geothermal systems and the application of alteration mineralogy to their assessment","volume":"43","author":"Reyes","year":"1990","journal-title":"J. Volcanol. Geotherm. Res."},{"key":"ref_57","first-page":"818","article-title":"NH4+ in pegmatitic feldspars from the southern Black Hills, South Dakota","volume":"73","author":"Solomon","year":"1988","journal-title":"Am. Mineral."},{"key":"ref_58","first-page":"209","article-title":"An experimental study of Na-K exchange between alunite and aqueous sulfate solutions","volume":"75","author":"Stoffregen","year":"1990","journal-title":"Am. Mineral."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/j.chemgeo.2004.06.039","article-title":"Equilibrium mineral-fluid calculations and their application to the solid solution between alunite and natroalunite in the El Indio-Pascua belt of Chile and Argentina","volume":"215","author":"Deyell","year":"2005","journal-title":"Chem. Geol."},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Cudahy, T.J. (2016). Mineral mapping for exploration: An Australian journey of evolving spectral sensing technologies and industry collaboration. Geosciences, 6.","DOI":"10.3390\/geosciences6040052"},{"key":"ref_61","first-page":"279","article-title":"Porphyry-epithermal transition, Cajamarca region, northern Peru","volume":"11","author":"Gustafson","year":"2004","journal-title":"Soc. Econ. Geol. Spec. Publ."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"483","DOI":"10.2113\/econgeo.108.3.483","article-title":"Shortwave infrared spectral analysis of hydrothermal alteration associated with the Pebble porphyry copper-gold-molybdenum deposit, Iliamna, Alaska","volume":"108","author":"Harraden","year":"2013","journal-title":"Econ. Geol."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"924","DOI":"10.1190\/1.1442362","article-title":"Near-infrared detection of ammonium minerals","volume":"52","author":"Krohn","year":"1987","journal-title":"Geophysics"},{"key":"ref_64","first-page":"91","article-title":"Adularia\u2013sericite type wallrock alteration at the Maria Josefa goldmine: An example of low sulfidation epithermal ore deposit within the volcanic Rodalquilar Caldera (SE, Spain)","volume":"30","author":"Queralt","year":"1995","journal-title":"Acta Geol. Hisp\u00e1nica"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/5\/914\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:30:46Z","timestamp":1760160646000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/13\/5\/914"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3,1]]},"references-count":64,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2021,3]]}},"alternative-id":["rs13050914"],"URL":"https:\/\/doi.org\/10.3390\/rs13050914","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,3,1]]}}}