iron ore at best price in india

iron ore at best price in india

Koramangala, Bengaluru 972/C, V3 Towers, 2nd Floor, S. T. Bed Layout Koramangala, 4th Block, Near Swathi Maharaja Hotel Koramangala, 4th Block, Near Swathi Maharaja Hotel, Koramangala, Bengaluru - 560034, Dist. Bengaluru, Karnataka

iron ore pellets screening solutions

iron ore pellets screening solutions

The size distribution of iron ore pellets is among the most important quality parameters for the end users of those pellets, the steel mills. The tighter the distribution is, the better the performance and energy efficient the steel making process will be. It all relates to pellet bed permeability or how easily the gases travel in between the pellets in the process.

We have served this industry for more than 4 decades. We have been involved in numerous screening projects in most markets worldwide, and have been exposed to a wide range of ore specifications, plant configuration and needs.

Whether you are seeking equipment for your balling lines or a larger roller feeder for your grate feeding station or both, whether the need is for a new pellet plant project or an existing pelletizing line, Metal 7 is in position to offer optimal solutions.

The iron ore and additives with given moisture content are pelletized (formed into small balls referred to as green balls or green pellets) in a balling device. This could be a balling drum or a balling disk Pellets of various sizes exiting the balling device are discharged afterward on a deck of rollers, the roller screen, for removal of the pellets that are not within the sizing range.

In most modern pelletizing plants, we find two pellets screening stations. The first one is located at the balling department. The balling dept. includes some roller screens, and often as many as balling devices (one roller screen by balling disc). However, some fines would be created in the conveying of the green balls/pellets from the balling department to the indurating furnace. Therefore, a second screening station with a single larger roller screen is located just prior to the indurating furnace.

Replacement of existing roller screens by new state-of-the-art machines has proven a small investment to trigger important gains for pelletizing plants. Such gains are also carried on to their customers, the steel making plants, which are also benefiting from this better sizing.

Rollers supplied by Metal 7 last longer and screens operate more efficiently with constant gaps. The engineering group also customizes the screen designs, bearing in mind it should require low maintenance and maximise the equipment availability. Increases in production tonnage are closely associated with higher equipment availability and we achieve that through the following:

Our roller screens operate smoothly with components designed to reduce friction, noise level and power consumption. Our most popular option, with a single drive motor driving all the rolls, contributes also in reducing the power consumption associated with your pellet screening operation.

The improvement of its existing products and the development of new screening systems still represent a major part of the yearly investment in Research & Development. Metal 7 constantly strives to offer more to its customers. The latest developments include the new triple deck design, the new discharge.

Sizing also has a significant impact on the productivity of the pelletizing plants themselves. For purposes of handling and shipping, the pellets have to be hardened in an induration furnace. Firing, to include the fuel required for firing, is the most important cost center for a pelletizing plant. Improved permeability of the bed of pellets obtained with an efficient sizing system will reduced the quantity of fuel required to fire a ton of pellets. More consistent sizing means also a better and complete firing of the pellets. Improvement in the firing allows accelerating the speed of the grate carrying the pellets in the furnace with a direct increase in the production per hour of the pelletizing line.

The best scenario for both the pelletizing plant and the steel making plant would be to have all the pellets exactly at the same diameter. That is hardly possible for plants producing millions of pellets per year. The challenge is therefore to narrow the size distribution to its minimum. Metal 7 has been working on this specific task for the last 40 years. No wonder it has become the number one provider of green iron ore pellet screening equipment, the roller screen.

We are not only manufacturing roller screens. We design solutions for new plants or for existing pellets plants seeking increases of productivity. Over 40 pellet plants worldwide operate with rollers manufactured by Metal 7 and more are converting every year. Metal 7 has manufactured over 50000 rolls and over 200 rollers screens.

The roller screen includes a frame supporting a number of rollers of a specific diameter brought in rotation to move the pellets forward. The roller deck is also inclined to accelerate the pellets movement. Rollers are assembled in such a way that precise gaps are obtained between each roll. Pellets that are smaller than the gaps would fall in between the rolls.

Various configurations are possible, but the most standard one for the balling line roller screen is a tri-product screening arrangement. The first section at the charging end of the screen will remove the fines/undersize pellets with a smaller gap, for instance at 9 mm which will eliminate all the pellets smaller than 9 mm. The second section will recover the good pellets, for instance with a gap of 16 mm, all the pellets between 9 and 16 mm will fall in this section. Finally the bigger pellets, more than 16 mm in our example, will be discharged at the end of the screen. In other words, the roller screen segregates the pellets into three fractions. But only the good pellets will move forward in the process. The fines/undersizes and the oversizes will be returned to the balling process.

It is not uncommon to see pelletizing plants operating without roller screens at the balling lines, and particularly for smaller plants, or with roller screen removing only the fines/undersize. But in such cases, the large roller screen at the furnace feeding station would be adapted to both process a larger load and for the removal of the oversize pellets.

This has two purposes. The first function is to remove all the undersize pellets and fines that would come on the conveyor bringing the pellets from the balling department. Second, it evenly discharges the pellets on the moving grate of the furnace. That is why this larger roller screen is often referred to as a roller feeder. It feeds the green balls in the furnace.

This second function is critical. A uniform pellet bed on the grate is very important for the efficient firing of the pellets. Any deviation in the layout of the pellets on the grate will cause deviation in the firing process and the quality of the fired pellets.

Each pelletizing plant defines its sizing requirements, which are often dictated by their customers specifications. Metal 7 does not just aim at meeting this requirement in designing its roller screen. Its objective is always to deliver equipment allowing an ever tighter size distribution. This latter achievement is also explaining why Metal 7 is so active in the retrofit market.

The engineering team of Metal 7 reviews the existing equipment and plant layout. They design new screens that would fit in the room available minimizing the CAPEX investment for the customer. The new screen will come with optimized screening capacity and features with lower OPEX for the operations of the screening system. The return on investment is often within a few months of the commissioning of the new equipment.

What is the minimum diameter we can select for the application? It depends on the screen size, the load of pellets to process, and particularly the amount of fines to remove, and other factors. But the objective for Metal 7 is always the same. The smaller the diameter, the higher the number of rolls, thus a greater number of gaps, and larger capacity.

Thanks to the protective coatings Metal 7 has developed for the rolls, we offer the smallest diameter rolls found in the industry. The coating prevents wear of rollers. Therefore, it is not necessary to add extra material on the roller diameter to compensate progressive wear. Metal 7s coated rolls will retain their integrity for all their life. No other competitor matches the effectiveness of the coated rolls of Metal 7.

As for the length of the rolls, physical limitations, including the plant structure and layout, usually dictates the maximum length of the rolls. For the larger roller feeder, the width of the furnace grate would limit the length of the rolls.

Our survey of your needs will also include a review of other equipment surrounding the screen. For instance, how will you discharge the pellets on the roller screen? We will evaluate the pellets spreading pattern on the screen and consider this element in our calculation of the number of gaps required to screen the maximum of fines.

Two factors need to be considered in the selection of the roll material and the surface texture: the transport function of the rolls and the eventual sticking of pellet material on the roller surface.

- The pellets have to travel freely on the roller screen. Although the roller deck is tilted, the roller surface texture has an influence on the movement of the pellets from one roller to the other. Mistakes are easily made in the selection of the material and texture leading to pellets blocking the gaps with inadequate transport properties of the roller.

- The opposite situation is also possible, in which the roller has good transport characteristics but causes sticking of pellet material on the roller surface. The progressive build-up of material will modify the sizing distribution and eventually prevent the screening by blinding the gaps.

Metal 7 has a preference for chain driven screens with one single motor driving all the rolls. It is based on their lower costs, their high efficiency and their lower operation costs (lower power consumption). We also produced several roller feeders assembled with motor on every roller and this option is always considered for larger machines.

The minimum roller diameter, and consequently the number of gaps, is sometime one of the drawbacks of the individual drive option. The motor reducer width could be a limitation the selection of the roller diameter. This restriction is the reason why the individual drive design is hardly ever considered for the smaller roller screens of the balling lines.

With the chain driven option, Metal 7 adapts its design to meet your intentions and safety criteria. For instance, the single drive motor reducer could be located either at the upper end of the screen or at its lower end. Both options are available.

Pellet charging system (ex: reciprocating belt conveyor or shuttle belt conveyor). Improving the discharge of the pellets onto the screen will have a very positive contribution on the improvement of the sizing.

We design our equipment with specific attention on all the chute points. They include the drops from the balling unit to the screen, from the screen to the good product conveyor, from the wide belt conveyor to the roller feeder and from the roller feeder to the furnace grate. Pellet fracturing is one of its main concerns at every drop point. The lower the drop, the fewer pellets will be broken.

Metal 7 now introduces yet another innovation, its new EPSILON discharge end (chute) at the lower end of its roller feeder (also for its double deck roller screen/feeder or triple deck roller screen/feeder machines). The lower end rolls at the discharge of the feeder are positioned in such a way that the green pellets keeps rotating up to their discharge on the grate. They do not fall or drop on the pellet bed of the grate. This new design reduces green pellet fracturing or pellet plastic deformation.

The productive operation of a pelletizing plant is closely linked with its capacity to effectively screen green balls prior to their induration. The narrower the pellet size distribution is within the required pocket size range, the higher the plant efficiency will be. Better pellet sizing leads to improvement in plant productivity, reduction in induration costs (fuel for instance) and higher pellet quality.

Furthermore, the requirement for better sizing of pellets goes beyond the operational needs of the pelletizing plant. It is also one of the main quality criteria for the steel making plant buying the pellets.

Screening through roller screens is known for decades. But many roller types and roller screen designs are available on the market. They provide large differences in the segregation efficiency of the pellet sizes. Few roller screen designs really perform in service.

- Increase productivity of the pelletizing line; - Recover all the good size pellets; - Provide size distribution within the narrowest bell-curve shape (for instance pellets between 10 12.5 mm); - Reduce to a minimum the pellet breakage occurring in the green pellet handling, screening and discharging; - Distribute pellets on the grate in order to ensure their uniform firing in the furnace; - Optimize pellet bed permeability one of the most, if not the most, important function of a screening solution; - Low maintenance and high availability of the pellet screening line;

The constant improvement of their rollers also led them to design their own roller screen system to get even better screening performance out of its rolls. Existing designs in the industry had limitations. They could not accommodate the smaller diameter rolls developed by Metal 7. They did not provide the versatility of adjustment in service (RPM of the rolls, inclination, etc.) and they had lower availability in operation.

Its roller screen systems have become the most cost-effective solution and even the standard in the iron ore industry. No one attains the same efficiency thanks to the combination of their special rolls and well-designed equipment.

Through its expertise in material and surface engineering, Metal 7 selects the most appropriate material for the manufacturing the rolls for every application. In most projects, our objective is to use the smallest possible roll. The smaller the rolls, the more rolls and more gaps in the screen.. We pay close attention to the eventual deformation during service, and particularly for the longer rolls of the roller feeder at sometimes more than 4 meters long.

Other suppliers compensate for the lower strength of their roll by increasing the diameter of the roller. This goes counter to the maximisation of the screening surface in the design of a roller screen (bigger rolls equal less gaps per screen).

The engineering team develops the specifications of the rollers to ensure the adequate transportation of the pellets from one roller to the other without generating sticking on the roller surface. The characteristics of the ore and pellet content are taken into consideration. Pellet breakage is also considered.

Rolls are assembled with shafts. We offer different fixed or removable shaft arrangements (bolted, central screw types, etc.). We determine what is most suitable according to the specific needs of a roller screen, including the size of the rolls, the driving mechanism, the location, etc.

The coated rolls do not really wear. Therefore, they last much longer than uncoated rolls found in the market. Experience has shown increases in life expectancy by a factor of up to 10 when converting to such coated rollers of Metal 7. The coated roller replacement will not be related with wear. Other mechanical related causes will provoke the replacement of coated rolls (shaft problems, damages of the coating surface, etc.).

Most coated rollers could be reconditioned to give them a second or third life in service. It is more popular for larger rolls of the roller screen/feeder located at the entrance of the indurating surface.

However, the increase in the workign life expectancy is not the main contribution to the coating. The fact they do not wear means also that the gaps between rolls stay constant all through the life of the rolls. Therefore, the screening performance remains at its best without requiring periodic calibration of the gaps. That is by far the most important feature of the coated rolls.

The wear resistance of the coated rolls is also a key contributor to the use of smaller diameter rolls on Metal 7screens. It is not necessary to provide extra material on the roller diameter to compensate the wear. They will retain their integrity for the entire life of the roller.

M7-A19 (or M7-C19 for smaller rolls): Carbide base coating with high hardness (68 HRc), good transport property, high impact resistance, etc. This coating option is particularly adapted to plants handling material with more contaminants or leading to more building-up on roller surface.

M7-D130: Metallic base coating with material hardness increasing with the contact of pellets, very high transport property, etc. It is considered only for handling dry pellets (very low moisture). Other coatings are available including many variations of the above coating families.

The involvement of Metal 7 in the production of rollers for roller screen for the last 40 years had exposed us to a lot of different roller screen designs and technologies. However, its engineering team did not find one that was addressing all their concerns to really provide the end users with all the possible benefits our special rolls could provide.

So, in the 1990s they developed their own design gathering all the best features found on different screen technologies and in innovating with their own ideas. In the last 25 years, the company has invested major resources in the constant improvement of its most popular product family, the roller screen.

- We optimise the screening surface. They can accommodate the smallest available rolls, which provides more screening gaps. The screen width (roller length) is also lengthened to the maximum allowed by the plant layout and limitations;

- Metal 7 offers a wide range of options and features in the design. Each screen is customised for every application to maximise productivity, lower CAPEX, OPEX and maintenance costs and surpass the expectations of the end users;

Metal 7 offers all the screening solutions for your pelletizing plant whether it is for your balling department (single deck roller screen two product or tri-product versions) or for your induration furnace grate feeding station (roller feeder). In this latter case, several configurations are available with the individual drive or chain driven options including the :

A comprehensive screening solution is also offered to Metal 7s customers optimizing the complete green pellet screening function and the pellets discharge on the grate of induration furnace. Its project scope could include the roller screens and roller feeders but also all other related equipment involved in the screening operations, including:

This comprehensive approach permits a complete integration of the equipment without interference. It also optimises the overall performance of the screening function. Improved pellet quality and productivity, lower pellet breaking and the uniform laying of the pellets on the grate according to the desired profile are the main focus of this integrated approach.

- Larger screening surface allowing higher throughput of the line, the screening capacity often being a bottleneck in plants; - Higher productivity of the pelletizing plant with a better sizing and superior bed permeability in the surface; - More cost-effective machines with lower and easier maintenance and higher equipment availability through less maintenance (or calibration) related interruption of the pelletizing line;

- Gains in efficiency: All good pellets go to the induration instead of being wrongly recirculated in the process (wear resistant rolls equal constant gaps); - Smarter use of the energy. Better sizing reduces the consumption of fuel. - Better quality: final product is more attractive for the steel making plants with a narrower sizing and better firing of the pellets;

Metal 7 is one of Canada's biggest players in the metallic and ceramic coating field. Thanks to its leading expertise, the company stands out from its competitors by proposing extremely sophisticated, high-performance solutions. This competitive edge allows the company to thrive on the international market. The products manufactured in its workshops are used in nearly fifty plants in 20 countries, on all five continents. Metal 7 exports over 70% of its annual production outside Canada.

major mines & projects | serra norte complex (northern system mine)

major mines & projects | serra norte complex (northern system mine)

The iron deposits of the Northern Iron System are hosted in the Precambrian rocks of the Itacaiunas Supergroup. The basement of the region consists of the Pium Complex ortho-granulites, and Xingu Complex gneiss and migmatites. The volcanics and sediments of the Itacaiunas Supergroup overlie the basement, and are in turn overlain by Aguas Claras clastic sediments. Granites, gabbros, and granitoids intrude the sedimentary sequence. The Carajas ores are hosted by the Grao Para Group of the Itacaiunas Supergroup, composed of meta-basalts, meta-sediments, ironstones, and meta-rhyolites. The ore deposits lie within an approximately 300 to 400 meters thick banded chert-hematite jaspilite unit that occurs between thick volcanic units.The lower volcanic unit is the Parauapebas Formation (4,000 to 6,000 meters thick), and consists of bimodal volcanics (dominantly massive, vesicular and porphyritic flows and agglomerate breccias of metabasalt, meta-basaltic andesite and meta-trachyandesites), with subordinate (10 to 15 percent) meta- rhyolitic tuffs and flows.The Carajas Formation hosts the deformed banded-iron formations (BIFs) with some interbedded mafic meta-volcanics. The Cigarra Formation (upper volcanic unit) is similar to that of the Parauapebas Formation with mixed meta-sediments (fine grained tuffs, tuffaceous siitstones, phyllites, cherts and greywacke). The volcanic sequence has generally been weathered to a depth of 100 to 150 meters. The oxidation is observed to a depth of 500 meters in the banded iron formation (BIF) of the ore zone. The local stratigraphic sequence of the Itacaiunas Supergroup in the area of the Northern System is as follows:- Upper Group: Igarape Bahia Aquiri Group - meta sedimentary and metavolcanic rocks (including manganese beds in Aguas Claras Formation)- Middle Group: Grao Para Group - meta-sedimentary and meta-volcanic rocks.Upper Formation: Cigarra Formation - meta- volcanics.Middle Formation: Carajas Formation - predominantly banded iron formation with lesser mafic meta-volcanic units.Lower Formation: Parauapebas Formation - bimodal metavolcanic rocks and metasedimentary rocks with intercalated discontinuous banded iron formations.The Serra dos Carajas basin is cut by major E-W and N70W trending regional lineaments. The area is affected by numerous minor regional faults (sigmoid form). The most outstanding discontinuity is the WNW-trending Carajas Fault that divides the basin into two domains, North and South, with the N5 deposit located in the more structurally complex northern domain.The structurally most complex northern domain contains folded, faulted, and rotated iron ore bodies (N1 to N9 and Serra Leste). Several N-S oriented minor sympathetic fractures control the orebody configuration.The southern domain includes orebodies that dip to the north (SI to S4). These orebodies are part of the south flank of the major structure, and show no apparent block movement or rotation.Jaspilite represents the proto-ore of the Carajas region deposits, typically with 15 to 45 percent Fe (but can range up to 57 percent) and 35 to 65 percent Si02. The jaspilite is characterized by alternate light and dark colored micro-bands. Light colored layers are generally white to pale red, and consist of crypto- to micro crystalline quartz with inclusions of cryptocrystalline hematite and lesser martitized magnetite plus occasional sericite. Dark colored layers consist of fine-grained hematite and martitized magnetite.Deep leaching of the jaspilite has resulted in the progressive migration of silica, forming hard hematite at depth. With proximity to the surface, the weathering has resulted in the formation of soft hematite. Both hard and soft hematites represent enriched iron mineralization with iron contents typically ranging from 60 to 68 percent Fe. Near-surface weathering has created an iron laterite layer at the surface.The main mineralized lithological units of the N5 deposit:* Hard Hematite: Compact, blue-gray, massive hematite, with a metallic luster, high density, and low porosity. Iron grades range from 65 to 69 percent. It is primarily used in the production of the export lump ore. Hard hematite is an increasingly rare iron oretype in Vale's Carajas operations.* Soft Hematite: Massive hematite occasionally pulverized, highly porous, very weak, and slightly magnetic, with average iron grades of around 65 percent. It is the primary ore mineral, and is generally sufficiently friable to be excavated without blasting. Comprises the main source of sinter feed and pellet feed products.* Canga: Canga is the uppermost unit and consists of a lateritic-saprolitic material that is the product of surface weathering of the underlying iron mineralization (Structural Canga) or barren mafic rocks (Chemical Canga). Mineral Canga consists of blocks of hematite cemented by hydrated iron oxides (goethite and limonite). It is generally 15 to 20 meters thick.

The ore reserves in the Northern System are comprised of hematite. Because of the high grade (66.7% on average) of the Northern System deposits, Vale does not need to operate a concentration plant at Carajas. The beneficiation process consists simply of sizing operations, including screening, hydrocycloning, crushing and filtration. In Serra Norte, one of the major plants applies the natural moisture beneficiation process, consisting of crushing and screening, and the other applies both the natural moisture and the wet beneficiation process in distinct lines. The wet beneficiation process consists simply of sizing operations, including screening, hydrocycloning, crushing and filtration. Output from this site consists of sinter feed, pellet feed and lump ore.

iron ore screening

iron ore screening

Iron ore screening equipmentfromMultotecis made from polyurethane or rubber screening media. Our screening equipment is ideal for high, medium or low grade profiles,reduce plant footprint by more than 33%and materials of construction ensure along lifeatreduced costwithlow maintenancerequirements.

Our polyurethane and rubber iron ore screening solutions are manufactured using state-of-the-art injection moulding and rubber compression moulding machines. Aperture sizes and panel materials are tailored for use with all types of screening, from coarse, heavy-duty to ultra-fine applications.

Our screening solutions manufacturing technique, combined with our in-depth understanding of mineral processing industry flow sheets, four decades of industry experience and dedication to research and development, ensures the best iron ore screening solution for your application.

Our hammer samplers provide representative, cross belt samples of particulate material from a moving conveyor belt. They are manufactured in South Africa according to ISO 9001:2000 standards, and can be set up to suit all conveyor belt installations from 450 mm to 2 100 mm wide.

The Longi-Multotec heavy media drum separator (HMDS) for screening improves grade and recovery in dense medium recovery processes. We combine leading magnet technology, an established, application-specific experience in mineral processing and high-quality configurations, materials and parts, to improve the performance of dense media mineral recovery operations

Multotec has designed and optimised screening spiral concentrators for minerals, including iron ore, supplied with steel rubber-lined or PVC/polyurethane pipe launder systems, ideal for iron ore screening.

Multotecs polyurethane screens are made with self-relieving apertures resulting in the unrestricted downward movement of any sized particle eliminating pegging and blinding from your iron ore screening.

We manufacture three varied dimensions of static and reversible sievebend housing units for iron ore screening. Both units are suited to polyurethane sievebends and have 3 standard dimensions, varying from 800 mm arc length to 1 600 mm arc length

geospatial assessment of ultramafic rocks and ore minerals of salem, india | springerlink

geospatial assessment of ultramafic rocks and ore minerals of salem, india | springerlink

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image interpretation methods such as colour composite images (false colour composite, true colour composite) were adapted to capture the image for interpreting the visible and shortwave infrared raw bands and thus generating the mapping for the ultramafic terrain. ASTER colour composite image generated from shortwave infrared (SWIR) bands 8 and 4 and NIR band 3 shows contrast signature for the presence of rock types in the ultramafic terrain. The low and high silica percentages to be interpreted through the absorption features of the spectral range from 8.1 to 12 m. The combinations used to map silica index are of bands 10, 11 and 7 as RGB. PCA was applied to SWIR and visible and near-infrared spectral bands and from PCA output PC 6, 2 and 1 used in the generation of RGB colour composite. Hence, the results of PCA processed image highlights the magnesite mining area by dark red colour. The minimum noise fraction transform (B1, B2, B4) in RGB applied to ASTER image to focus on the overlapped rock types inclusive of magnesite and the same achieved as sharp image output. ASTER band ratios (R3/1, G4/5 and B6/8) in RGB calculated in which the numerator represents shoulders of absorption, and the denominator represents nearest absorption band. Thus, this combination indicates clearly the magnesite mining area in blue colour. The relative band depth in thermal infrared (TIR) bands (B13 and B14) correlated to find the carbonate index is high, medium and low through the pixel ratio output of the ultramafic terrain. Preprocessing of ASTER data involved atmospheric correction using FLAASH algorithm. The minimum noise fraction transform reduces the spectral dimensionality of data in a linear combination of bands. Spectral angle mapper and support vector machines are supervised classification technique adopted that are key learning models with the aid of analyse and categorization of data. The classification defends user, producer, overall accuracy and kappa coefficient. The magnesite mining area and adjust rock samples were field observed, and the mapping of the ultramafic terrain supports the output achieved through chosen ASTER band colour composite, band ratios, relative band depth, silica index, PCA, minimum noise fraction and pixel classification. Thus, a more informative lithological map for the ultramafic terrain generated to discriminate magnesite-mining region.

Crosta AP, Filho CRDS, Azevedo F, Iamgold CB (2003) Targeting key alteration minerals in epithermal deposits in Patagonia, Argentina, using ASTER imagery and principal component analysis[J]. Int J Remote Sens 24(21):42334240

Ding C, Liu X, Liu W, Liu M, Li Y (2014) Maficultramafic, and quartz-rich rock indices deduced from ASTER thermal infrared data using a linear approximation to the Planck function [J]. Ore Geol Rev 60:161173

ENVI (2009) Atmospheric correction module: QUAC and FLAASH users guide. http://www.exelisvis.com.portals/0/pdfs/envi/Flaash_Module.pdf, http://asterweb.jpl.nasa.gov/content/03_data/04_Documents/aster_guide_v2.pdf.

Eslami A, Ghaderi M, Rajendran S, Pour AB, Hashim M (2015) Integration of ASTER, and Landsat TM remote sensing data for chromite prospecting and lithological mapping in Neyriz ophiolite zone, south Iran [J]. Resour Geol 65(4):375388

Gad S, Raef A (2012) Factor analysis approach for composited ASTER band ratios and wavelet transform pixel-level image fusion: lithological mapping of the Neoproterozoic Wadi Kid area, Sinai, Egypt [J]. Int J Remote Sens 33(5):14881506

Guha A, Vivek KS, Parveen R, VinodKumar K, Jeyaseelan AT, Dhananjaya Rao EN (2013) Analysis of ASTER data for mapping bauxite rich pockets within high altitude lateritic bauxite, Jharkhand, India [J]. Int J Appl Earth Obs Geoinf 21:184194

Guha A, VinodKumar K, Dhananjaya Rao EN, Parveen R (2014) An image processing approach for converging ASTER-derived spectral maps for mapping Kolhan limestone, Jharkhand, India [J]. Curr Sci 106(1):4049

He XF, Santosh M, Zhang ZM, Tsunogae T, Chetty TRK, Ram Mohan M, Anbazhagan S (2015) Shonkinites from Salem, southern India: implications for Cryogenian alkaline magmatism in rift-related setting [J]. J Asian Earth Sci 113:812825

Honarmand M, Ranjbar H, Shahabpour J (2011) Application of principal component analysis and spectral angle mapper in the mapping of hydrothermal alteration in the JebalBarez area, Southeastern Iran [J]. Resour Geol 62(2):119139

Ninomiya Y (2004) Lithologic mapping with multispectral ASTER TIR and SWIR data. In: Meynart R, Neeck SP, Shimoda H, Lurie JB, Aten ML (eds) Sensors, systems, and next-generation satellites, Proceedings of SPIE 5234, vol VII, pp 180190

Ninomiya Y, Fu B (2010) Regional scale lithologic mapping in western Tibet using ASTER thermal infrared multispectral data [J]. Int Archiv Photogramm Remote Sens Spat Inform Sci XXXVIII(Part 8) Kyoto Japan:454458

Notesco G, Kopackova V, Rojik P, Schwartz G, Livne I, Dor EB (2014) Mineral classification of land surface using multispectral LWIR and hyperspectral SWIR remote-sensing data. A case study over the Sokolov Lignite Open-Pit Mines, the Czech Republic [J]. Remote Sens 6:70057025

Othman AA, Gloaguen R (2014) Improving lithological mapping by SVM classification of spectral and morphological features: the discovery of a new chromite body in the Mawat Ophiolite Complex (Kurdistan, NE Iraq) [J]. J Remote Sens 6:68676896

Rowan LC, Mars JC, Simpson CJ (2005) Lithologic mapping of the Mordor, NT, Australia ultramafic complex by using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) [J]. Remote Sens Environ 99:105126

Rowan LC, Schmidt RG, Mars JC (2006) Distribution of hydrothermally altered rocks in the Reko Diq, Pakistan mineralized area based on spectral analysis of ASTER data [J]. Remote Sens Environ 104(1):7487

Sekandari M, Masoumi I, Pour AB, Muslim AM, Rahmani O, Hashim M, Zoheir B, Pradhan B, Misra A, Aminpour SM (2020) Application of Landsat-8, Sentinel-2, ASTER and WorldView-3 spectral imagery for exploration of carbonate-hosted Pb-Zn deposits in the Central Iranian Terrane (CIT) [J]. Remote Sens 12:1239

Sheikhrahimia A (2019) Pour A B, Pradhan B, Zoheir B (2019) Mapping hydrothermal alteration zones and lineaments associated with orogenic gold mineralization using ASTER data: a case study from the Sanandaj-Sirjan Zone, Iran [J]. Adv Space Res 63:33153332

Wambo JDT, Pour AB, Ganno S, Asimow PD, Zoheir B, Salles RR, Nzenti JP, Pradhan B, Muslim AM (2020) Identifying high potential zones of gold mineralization in a sub-tropical region using Landsat-8 and ASTER remote sensing data: a case study of the Ngoura-Colomines goldfield, eastern Cameroon [J]. Ore Geol Rev 122(103530) ISSN 0169-1368. https://doi.org/10.1016/j.oregeorev.2020.103530 (http://www.sciencedirect.com/science/article/pii/S0 1544)

Zhang X, Pazner M (2007) Comparison of lithologic mapping with ASTER, Hyperion, and ETM Data in the Southeastern Chocolate Mountains, USA [J]. Photogrammetr Eng Remote Sens Am Soc Photogrammetr Remote Sens 73(5):555561

The authors are thankful to the NASA Land Processes Distributed Active Archive Centre User Services, USGS Earth Resources Observation and Science (EROS) Centre for the supply of ASTER data. The first author thanks to University Grants Commission (UGC) for providing BSR fellowship.

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