Evaporate mapping in Bala region (Ankara) by remote sensing techniques

Download
2008
Öztan, Nihat Serkan
Evaporate minerals were very important raw materials in very different and broad industries for years. Since gypsum became important raw material especially in construction industry as plaster, demand to these minerals rises each following year. The aim of this thesis is to map out these industrial raw materials by using remote sensing techniques. Ankara Bala region has very rich Gypsum sites and this region is showed as one of the best gypsum potential sites of Turkey according to the studies of MTA so that this area is selected for the usage of remotely sensed data. For the remote sensing analyses ASTER images which have high spatial and spectral resolution are used. The analyses are applied using PCI Geomatica software and ARCGIS software is used for mapping purposes. Band ratio, decorrelation stretch, principal component analysis and thermal indices are used in order to map gypsum minerals. For gypsum minerals previously known Crosta method is modified and by the selection of suitable bands and principle components, gypsum minerals are tried to map and it is seen that it has a high success. For TIR indices previously known Quartz index is modified as Sulfate index and used for gypsum mapping. For relative accuracy all the results are add, percentages of the results are estimated. According to results; 288 km2 area is mapped as gypsum with the total of four methods but it is seen that only 8 km2 is found by every methods. According to these percentages modified Crosta method and Sulfate Index methods are showed the highest success.

Suggestions

Mapping evaporate minerals by ASTER
Oztan, N. Serkan; Süzen, Mehmet Lütfi (2011-01-01)
Evaporate minerals are important industrial raw materials that have been used in diverse industries for many years. As one of the most extensively used evaporate minerals, gypsum is an important raw material in the construction, agriculture, textile, dentistry and chemical industries, resulting in a massive increase in demand of these minerals in recent years. The aim of this study was to demonstrate the responses of common remote sensing mapping techniques and further develop some of them while evaluating ...
Solvent extraction of scandium from lateritic nickel- cobalt ores using different organic reagents
Ferizoglu, Ece; Kaya, Serap; Topkaya, Yavuz Ali (2016-09-28)
Scandium is the most important and strategic metal that can be recovered as a by-product from lateritic nickel-cobalt ores. In this research, different extractants were investigated in order to extract scandium from a sulfate medium by a using a solvent extraction method. Generally, the organic extractants are classified as acidic, neutral and basic organophosphorus compounds. However, in solvent extraction of scandium, the acidic and neutral organophosphorus compounds are preferred due to their higher extr...
Solvent extraction behaviour of scandium from lateritic nickel-cobalt ores using different organic reagents
Ferizoglu, Ece; Kaya, Serap; Topkaya, Yavuz Ali (2018-04-01)
Scandium is one of the most important and strategic metals that can be recovered as a by-product from lateritic nickel-cobalt ores. In this research, different extractants were investigated to extract scandium from sulphate medium by using solvent extraction method. Generally, the organic extractants are classified as acidic, neutral and basic reagents. Thus, the aim of the present study was to compare scandium extraction efficiencies of some acidic, neutral and basic organic reagents. For this reason, Ionq...
Challenges related to flotation cleaning of oil shales Issues due to compositional and surface features and post grinding surface behavior
Altun, Naci Emre (2016-09-30)
Oil shale is an important energy resource alternative. Despite its recognition as an unconventional oil source, oil shale is also considered as an important solid fossil fuel alternative to coal and lignites due to the solid form and remarkable extent of organic content. Utilization possibilites, similar to coal and lignites, have been considered in the past decades and direct use of oil shales in thermal power production has been possible in countries like Estonia and China. In the perspective of utilizati...
Stability investigation of Eti borax mine Hisarcık tailing dam using finite element analysis
Mokhtari, Pozhhan; Düzgün, H. Şebnem; Department of Mining Engineering (2014)
Today, with modern technological developments, the need for raw materials has also increased, which resulted in the development of mining industry. Therefore, there should be a plan for tailing storage and constructing a reliable tailing dam to store waste materials. In this study, the current and reckoning condition of the height rising in Hisarcik tailing dam is investigated for any potential stability problems. This tailing dam is one of the main tailing impoundments in Emet Borax mine, which is located ...
Citation Formats
N. S. Öztan, “Evaporate mapping in Bala region (Ankara) by remote sensing techniques,” M.S. - Master of Science, Middle East Technical University, 2008.