{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T02:39:18Z","timestamp":1771641558439,"version":"3.50.1"},"reference-count":77,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2016,12,19]],"date-time":"2016-12-19T00:00:00Z","timestamp":1482105600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Ground-based hyperspectral imaging is fairly new for studying near-vertical rock exposures where airborne or satellite-based imaging fail to provide useful information. In this study, ground-based hyperspectral image analysis was performed on a roadcut, where diagenetic tripolite facies is observed in southwestern Missouri. Laboratory-based reflectance spectroscopy and hyperspectral image analyses were also performed on collected samples. Image classification was performed using Spectral Feature Fitting (SFF) and Mixture-tuned Match Filtering (MTMF) with laboratory- and image-derived end-member spectra. SFF provided thorough yet detailed classification, whereas MTMF provided information on the relative abundances of the lithologies. Ground-based hyperspectral imaging demonstrated its potential to aid geological studies providing valuable information on mineralogical and lithological variations rapidly and with two-dimensional continuity in inaccessible rock faces of near-vertical outcrops. The results showed decreasing tripolite abundance going downward in the investigated vertical succession. Also, a leaching pattern has been observed such that persistent and continuous limestone layers become lenses and patches towards the upper portion of the outcrop. These observations show that the effect of tripolitization decreases when going deeper in the succession, suggesting that the fluid responsible for the weathering of siliceous precursors may have been flowing from top to bottom and thus have had a meteoric origin.<\/jats:p>","DOI":"10.3390\/rs8121018","type":"journal-article","created":{"date-parts":[[2016,12,23]],"date-time":"2016-12-23T04:09:09Z","timestamp":1482466149000},"page":"1018","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Ground-Based Hyperspectral Image Analysis of the Lower Mississippian (Osagean) Reeds Spring Formation Rocks in Southwestern Missouri"],"prefix":"10.3390","volume":"8","author":[{"given":"\u00dcnal","family":"Okyay","sequence":"first","affiliation":[{"name":"Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA"}]},{"given":"Shuhab","family":"Khan","sequence":"additional","affiliation":[{"name":"Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA"}]},{"given":"M.","family":"Lakshmikantha","sequence":"additional","affiliation":[{"name":"Repsol USA, 2455 Technology Forest Blvd., The Woodlands, TX 77381, USA"}]},{"given":"Sergio","family":"Sarmiento","sequence":"additional","affiliation":[{"name":"Repsol USA, 2455 Technology Forest Blvd., The Woodlands, TX 77381, USA"}]}],"member":"1968","published-online":{"date-parts":[[2016,12,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1016\/j.ijrmms.2010.11.009","article-title":"Semi-automatic extraction of rock mass structural data from high resolution LIDAR point clouds","volume":"48","author":"Gigli","year":"2011","journal-title":"Int. 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