A Mohammadi; B Nekouie Sadri; S.S Hashemi; A Bayatani
Abstract
In 21st century, geologists of the developed countries paid special attention to the usage of criteria for evaluation of geodiversity and introduction of the country’s geoheritage to conserve this valuable heritage and its usage in sustainable way. Conservation and utilization of geoheritage or ...
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In 21st century, geologists of the developed countries paid special attention to the usage of criteria for evaluation of geodiversity and introduction of the country’s geoheritage to conserve this valuable heritage and its usage in sustainable way. Conservation and utilization of geoheritage or mining heritage is carried out in the framework of introducing a national or global region as geopark. Geopark is an under protection area that in addition to the geosite richness contains historical, cultural, and natural (ecosites) places. Making use of efficient management and proper training of local people and emphasizing on recreational teaching of geological and environmental concepts, it can attract tourists to fill their time through interpretation of all attractions in a way that this measurements cause improvement in economic-social situation of the local people as well as all people in the country. The study area is located around the world heritage site, namely Takht-e-Soleiman in the northwest of Iran that is rich from geodiversity, biodiversity and historical-cultural diversity points of view. However, the study area is economically poor. Accordingly, establishment of a geopark in the region can increase job creation, prevent immigration of villagers to the cities and flourish economic life of the region. In this study, two methods used for evaluation of criteria each of them includes some parameters and sub-parameters. Based on calculated scores for each site and making use of interpolation methods in GIS environment, the geopark territory and the best geotrail were selected.
S Dehnavi; Y Maghsoudi; M.J Valadanzoej; A Bayatani
Abstract
Mineral target identification and hydrothermally altered zone’s discrimination has been considered by many investors during many years of study. Numerous mineral targets can’t be recognized at pixel level. The problem of unmixing and resolving spectra in subpixel level of mixels (mixed pixels) ...
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Mineral target identification and hydrothermally altered zone’s discrimination has been considered by many investors during many years of study. Numerous mineral targets can’t be recognized at pixel level. The problem of unmixing and resolving spectra in subpixel level of mixels (mixed pixels) was expressed with the birth of imaging spectrometry. On the other hand prober’s experiments have shown the improved results in ensemble of classifiers. This study have proposed the mixture of some target detectors and classifiers at both pixel and subpixel levels, which have been tested on the hymap airborne hyperspectral sensor, in Iran East. Results have shown that the proposed method has better performance than individual detectors.
D Refahi; A Khakzad; N Nezafati; Kh Bahar Firozi; A Bayatani
Abstract
Development of advance tools in remote sensing and airborne geophysics during recent decades shows this industry importance. In this paper, aster sensor imagery (Advanced Space born Thermal – Radiometer) and airborne geophysics employed in order to zoning alteration area, mineralization system ...
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Development of advance tools in remote sensing and airborne geophysics during recent decades shows this industry importance. In this paper, aster sensor imagery (Advanced Space born Thermal – Radiometer) and airborne geophysics employed in order to zoning alteration area, mineralization system analysis and prospecting in 1:25000 Oghlansar sheet, which is situated in north of Sarab City in East Azerbaijan province. The area is located in structural zone of theEastern Alborz-Azerbaijan. The lithology of area contains Eocene-Neogene magmatic-volcanic complex such as andesite, rhyodacite, rhyolite, and granodiorite associated with pyroclastics such as tuffs, volcanic breccia and lava flows. In this investigation, we applied different methods of spectral analysis and normal classification such as SAM (Spectral Angel mapping), MF (Match Filtering) using ASTER images. Furthermore, spectral analysis methods on airborne geophysics data were engaged in order to extract shallow bodies and recognition of faults. ASTER imagery process and airborne geophysics data led to primary potential mineral map of the area. For credibility of results, 200 samples were taken and analyzed by XRD, XRF and ICP methods. Consequently, 190 samples (95%) confirmed the results of remote sensing and airborne geophysics processes. Conclusions of this research revealed that applying concurrency both the remote sensing and airborne geophysics data could be led to improve the precision of the results.
