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The Determination of Promising Mineral Zones in 1:100,000 Varamin Sheet Based on Geochemical Studies (Heavy Minerals)  [PDF]
Seyyed Reza Mortazavi, Ghodratollah Mohammadi
Open Journal of Geology (OJG) , 2016, DOI: 10.4236/ojg.2016.68057
Abstract: In many parts of the world, data obtained from geochemical exploration of stream sediments are integrated with geological and geophysical data as one of the most efficient methods of exploring potential deposits at regional and semi-detailed scales. The aim of regional investigation is to study large areas to identify anomalies that might have been arisen from increased concentrations of an element or some elements in a region. A total of 78 geochemical samples were taken from Varamin sheet to identify regions of anomalies. The following information was used to perform a detailed geochemical exploration, in particular for geochemical sampling. 1) 1:100,000 geological map of Varamin. 2) 1:50,000 topographic maps of the region. 3) 1:100,000 airborne geophysical map of the region to locate shallow intrusions and hidden faults. The sampling network was designed using the above data and the analysis of 1:500,000 topographic maps. The sampling density was higher around faults and apparent and hidden intrusions, and lower in plains and lowlands.
The Interpretation of Seabeach Resources in the Estuary of Liaohe River by Satellite Imagery

Pei Yong Sun Yongbin,

遥感学报 , 1990,
Abstract: The seabeach is a kind of significant natural resources and may be composed of three portions of supratidal, intertidal and subtidal zones. This paper is mainly dealt with the patterns, area, changes and land-use types of seabeach resources of the estuary of Liaohe River by the interpretation of False color and B/W satellite Imagery according to their Characteristics of images.
Edible Flowers—A New Promising Source of Mineral Elements in Human Nutrition  [PDF]
Otakar Rop,Jiri Mlcek,Tunde Jurikova,Jarmila Neugebauerova,Jindriska Vabkova
Molecules , 2012, DOI: 10.3390/molecules17066672
Abstract: On a global scale, people are demanding more attractive and tasty food. Both the quality of foodstuffs and aesthetic aspects contribute to the appearance of consumed meals. The attraction and appeal of individual dishes could be enhanced by edible flowers. New information concerning the composition and nutritional value of edible flowers is also important and represents a sufficient reason for their consumption. The aim of this study is to contribute to the popularization of some selected edible flowers of ornamental plants involving altogether 12 species. The flowers were used to determine their antioxidant capacity, which fluctuated between 4.21 and 6.96 g of ascorbic acid equivalents (AAE)/kg of fresh mass (FM). Correlation coefficients between antioxidant capacity and the contents of total phenolics and flavonoids were r2 = 0.9705 and r2 = 0.7861, respectively. Moreover, the results were supplemented with new data about the mineral composition of edible flowers (mostly, not found in the available literature). The highest levels of mineral elements were observed in the flowers of species Chrysanthemum, Dianthus or Viola. The most abundant element was potassium, the content of which ranged from 1,842.61 to 3,964.84 mg/kg of FM.
An Investigation into the Metal Potentials across Bidkhan Area Based on Economic Geological Studies  [PDF]
Alireza Ashofteh, Ahmad Adib
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.511064
Abstract: The study area is situated in the NW-trending Urumieh-Dokhtar volcanic belt evolved during Arabia-Eurasia convergence. At the center of Bidkhan, there is an area of approximately 10 km2, which is an altered volcanic-intrusive complex. Effort will be made to provide a more accurate picture of the alteration landscape across Bidkhan on the map. The purpose is to clarify how alteration at several points has occurred so as to understand the features of alteration. The altered area is covered by younger events, which have in turn gone through alteration covering another type of alteration on the lower layer. Studies show that there are no traces of either metallic or non-metallic mining activities in the region. The only notable point is the rare remnants of slags spread sporadically across one spot of the region. It is unknown where the small pieces of slag about 10 cm × 10 cm originate from and which mineralization is involved. It seems that due to the expansion of copper mineralization at Bidkhan, the slags are produced from the copper smelting.
Studying Petrology and Determining Tectonic Setting of Bidkhan Area Southeast of Iran  [PDF]
Ahmad Adib, Alireza Ashofteh
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.510060
Abstract: Bidkhan region has an area of approximately 104 km2. This region includes all the heights and villages that are known by the name of Bidkhan. Chemical nomenclature of igneous rocks is performed with the help of main oxide plots. Based on the analysis results of the samples with minimum alteration, position of these samples was obtained on special diagrams. The achieved data should be compatible with field evidences at a regional scale. There are some limits to the interpretation of the harvested samples on chemical nomenclature diagrams for igneous rocks that should be taken into account. Lithology of Bidkhan region was performed using the main oxides that were obtained from XRF method. 30 sample rocks, which were very fresh and without alteration, were used for drawing diagrams and determining the position of these regional rocks on the chemical nomenclature diagrams for igneous rocks. The results for the analysis of the main oxides of these 30 samples are also presented.
Evaluation of Structural Patterns and Related Alteration and Mineralization Zones by Using ASAR-ASTER Imagery in Siyahrood Area (East Azarbaijan—NW Iran)  [PDF]
Shabnam Khosroshahizadeh, Mohsen Pourkermani, Mahmood Almasiyan, Mehran Arian, Ahmad Khakzad
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.59053
Abstract: The NW part of Iran belongs to the Iranian plateau that is a tectonically active region within the Alpine-Himalayan orogenic belt. The intrusion of Oligocene parts in various faces caused the alteration and mineralization such as copper, molybdenum, gold and iron in the Siyahrood area. Granitoidic rocks with component of Granodiorite to alkali have been influenced by hydrothermal fluids. Alteration zones are important features for the exploration of deposits and the ASTER sensor is able to identify the type of alteration and its alteration zoning. This method can be a useful tool for detecting potential mineralization area in East Azarbaijan—Northwest of Iran. The purpose of this study is to evaluate ASTER data for mapping altered minerals in Siyahrood area in order to detect the potential mineralized areas. In this study, false color composite, and band ratio techniques were applied on ASTER data and argillic, phyllic, Iron oxide and propylitic alteration zones were separated. ASAR image processing has been used for lineaments and faults identified by the aid of directional filter. The structural study focused on fracture zones and their characteristics including strike, length, and relationship with alteration zones. The results of this study demonstrate the usefulness of remote sensing methods and ASTER multi-spectral data for alteration, and ASAR data are useful for lineament mapping.
Computer Identification of Multispectral Satellite Cloud Imagery

Li Jun,Zhou Fengxian,

大气科学进展 , 1990,
Abstract: A dynamic clustering method based on multispectral satellite imagery to identify the different features is des-cribed. The channel combinations selected are for the different purposes in classification. Several cases are presented using the polar- orbiting satellite imageries.
Mineral Mapping Using Simulated Worldview-3 Short-Wave-Infrared Imagery  [PDF]
Fred A. Kruse,Sandra L. Perry
Remote Sensing , 2013, DOI: 10.3390/rs5062688
Abstract: WorldView commercial imaging satellites comprise a constellation developed by DigitalGlobe Inc. (Longmont, CO, USA). Worldview-3 (WV-3), currently planned for launch in 2014, will have 8 spectral bands in the Visible and Near-Infrared (VNIR), and an additional 8 bands in the Short-Wave-Infrared (SWIR); the approximately 1.0–2.5 μm spectral range. WV-3 will be the first commercial system with both high spatial resolution and multispectral SWIR capability. Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data collected at 3 m spatial resolution with 86 SWIR bands having 10 nm spectral resolution were used to simulate the new WV-3 SWIR data. AVIRIS data were converted to reflectance, geographically registered, and resized to the proposed 3.7 and 7.5 m spatial resolutions. WV-3 SWIR band pass functions were used to spectrally resample the data to the proposed 8 SWIR bands. Characteristic reflectance signatures extracted from the data for known mineral locations (endmembers) were used to map spatial locations of specific minerals. The WV-3 results, when compared to spectral mapping using the full AVIRIS SWIR dataset, illustrate that the WV-3 spectral bands should permit identification and mapping of some key minerals, however, minerals with similar spectral features may be confused and will not be mapped with the same detail as using hyperspectral systems. The high spatial resolution should provide detailed mapping of complex alteration mineral patterns not achievable by current multispectral systems. The WV-3 simulation results are promising and indicate that this sensor will be a significant tool for geologic remote sensing.
Geospatial Mapping of Singhbhum Shear Zone (SSZ) with Respect to Mineral Prospecting  [PDF]
Bijay Singh Jimly Dowerah, Jimly Dowerah
Journal of Geographic Information System (JGIS) , 2010, DOI: 10.4236/jgis.2010.23025
Abstract: Singhbhum Shear Zone is a highly mineralized zone having variety of minerals, predominantly those of uranium, copper and some sulphide minerals. From Remote Sensing data it is possible to decipher the regional lithology, tectonic fabric and also the geomorphic details of a terrain which aid precisely in targeting of metals and minerals. Mapping of mineralized zones can be done using Geospatial Technology in a GIS platform. The present study includes creation of various maps like lithological map, geomorphological map, contours and slope map using satellite data like IRS LISSIV and ASTER DEM which can be used to interprete and correlate the various mineral prospective zones in the study area. Even the alterations of the prevalent mineral zones can be mapped for further utilization strategies. The present work is based on the investigations being carried under ISROSAC Respond Project (Dept. of Space, Govt. of India SAC Code: OGP62, ISRO Code: 10/4/556).
Estimating Coastal Lagoon Tidal Flooding and Repletion with Multidate ASTER Thermal Imagery  [PDF]
Thomas R. Allen
Remote Sensing , 2012, DOI: 10.3390/rs4103110
Abstract: Coastal lagoons mix inflowing freshwater and tidal marine waters in complex spatial patterns. This project sought to detect and measure temperature and spatial variability of flood tides for a constricted coastal lagoon using multitemporal remote sensing. Advanced Spaceborne Thermal Emission Radiometer (ASTER) thermal infrared data provided estimates of surface temperature for delineation of repletion zones in portions of Chincoteague Bay, Virginia. ASTER high spatial resolution sea-surface temperature imagery in conjunction with in situ observations and tidal predictions helped determine the optimal seasonal data for analyses. The selected time series ASTER satellite data sets were analyzed at different tidal phases and seasons in 2004–2006. Skin surface temperatures of ocean and estuarine waters were differentiated by flood tidal penetration and ebb flows. Spatially variable tidal flood penetration was evaluated using discrete seed-pixel area analysis and time series Principal Components Analysis. Results from these techniques provide spatial extent and variability dynamics of tidal repletion, flushing, and mixing, important factors in eutrophication assessment, water quality and resource monitoring, and application of hydrodynamic modeling for coastal estuary science and management.
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