The airborne hyper-spectral survey system CASI/SASI, which has an integrated for gathering both image spectral data, is at the cutting edge developments in remote-sensing field. It can be used to directly identify surface objects based on diagnostic characteristics. In this paper, CASI/SASI were Huaniushan gold-silver-lead-zinc ore district–Gansu produce a lithologic map, altered minerals, and ...

The area under investigation is the Bau gold mining district in the State of Sarawak, East Malaysia, on the island of Borneo. It has tropical climate with limited bedrock exposures and the other constraints imposed in the environment. Bau is a gold field with Carlin style gold deposits. Geological analyses coupled with remote sensing data were used to detect structure elements and hydrothermall...

Laser beam welding of dissimilar sheet metal combinations such as Ti/Al, SS/Al and Cu/Al are increasingly demanded due to high energy densities with less fusion and heat affected zones. A good weld joint strength involves combinations of dissimilar metals and the formation of solid solution in the weld pool. Many metal pairs suffer from significant intermetallic phase formation during welding w...

The microstructural features of variable polarity plasma arc welded Al-Cu-Mg 2024-T351 with 2319 filler have been studied by TEM, SEM and DSC. Fusion zone, partial melting zone, resolutionising zone, overageing (for S phase), peak ageing (for S phase) and under ageing zones (for S phase) have been identified. The Ω phase has been observed between re-solutionising zone and peak ageing zone. The ...

Hyperspectral remote sensing records reflectance or emittance data in a large sum of contiguous and narrow spectral bands, and thus has many information in detecting and mapping the mineral zones. On the other hand, the geological and geophysical data gives us some other fruitful information about the physical characteristics of soil and minerals that have been recorded from the surface. ...

Caplllary zone electrophoresis (CZE) was employed to separate sugars accordlng to their electrophoretic moMlitks In strong alkallne clolutlons (pH ca. 13). Saccharide zones were monltored electrochemlcaliy udng amperometrlc detectlon at a constant potentlal, 0.6 V (vs Ag/AgCI), with a cyllndrlcal copper wire electrode (25 pm In diameter). The Cu-wire microelectrode In strong badc solutions had ...

The study area is located in Jabal-Barez Ranges, southeastern part of Kerman Copper Belt (KCB), where the porphyry copper mineralization such as Kerver occurs. This article deals with the enhancement of hydrothermal alteration minerals for exploration of porphyry Cu mineralization, and differentiates intense hydrothermal alteration zones from those with low intensity. Shortwave Infrared (SWIR) ...

Major aim of this study is to define the copper and gold anomalies using the combination of the Concentration-Number (C-N) fractal and the stepwise factor analysis, based on stream sediment samples in Lahrud 1:100,000 sheet, NW Iran. The case study is situated in Alborz-Azerbaijan structural zone. Elements related to Au and Cu hydrothermally mineralization were selected for this study, accordin...

Abstract: The Urumieh-Dokhtar Magmatic Belt (UDMB) is the host of many Iranian Cu porphyry deposits. Southern part of this belt, in the range of geological Jebal barez, has been less investigated because of the mountainous and rough topography and also some security confrontation. Porphyry deposits are associated with hydrothermal alteration zones can be mapped using remote sensing data such as...

Dynamically developing urbanization causes a number of environmental effects, including those related to the chemical transformation soils. Relatively less information about urban areas Arctic and Subarctic zones, constructed mostly on permafrost intensively populated can be found. By example analysis basic soil properties concentrations trace metals in soils cities Salekhard, Urengoy, Nadym, N...