The spatial distribution of mineralization is the foremost concern in regional exploration and it could be considered as a very important tool in the investigation of mineral deposits. There are several data manipulation methods by which the data can be evaluated. Fry analysis is a good method to determine the direction(s) of maximum continuity of the deposits and could be used in different typ...

The East Sulawesi Ophiolite, one of the three largest ophiolites in world, contains important podiform chromitites. However, origin these chromite deposits is not well constrained. Here, we present detailed mineralogy and situ chemistry solid inclusions within for chromitites from Kabaena Island, Southeast Sulawesi. Chromite grains have low TiO2 (0.17–0.27 wt%) Al2O3 (13.4–15.1 contents high Cr...

The discovery of ultrahigh pressure (UHP) minerals in orogenic belts has revolutionized our understanding subduction and the return flow previously deeply subducted material to Earth's surface as part cycling interaction crustal mantle systems. One class UHP is found inclusions peridotite-hosted podiform-chromite systems, within Phanerozoic ophiolites ophiolitic mélanges. Such have opened a win...

baft ophiolite mélange is a part of naein-baft ophiolite (southeast of kerman province in iran). serpentinites from baft ophiolite mélange contain different types of spinels such as chromite, chromespinel, ferritchromite and magnetite which can reveal different stages of evolution in host serpentinites. the compositions of baft chromites show that they belong to podiform chromitites that may ha...

Baft ophiolite mélange is a part of Naein-Baft ophiolite (southeast of Kerman province in Iran). Serpentinites from Baft ophiolite mélange contain different types of spinels such as chromite, chromespinel, ferritchromite and magnetite which can reveal different stages of evolution in host serpentinites. The compositions of Baft chromites show that they belong to podiform chromitites that may ha...

A high-pressure polymorph of chromite, the first natural sample with the calcium ferrite structure, has been discovered in the shock veins of the Suizhou meteorite. Synchrotron x-ray diffraction analyses reveal an orthorhombic CaFe2O4-type (CF) structure. The unit-cell parameters are a = 8.954(7) A, b = 2.986(2) A, c = 9.891(7) A, V = 264.5(4) A3 (Z = 4) with space group Pnma. The new phase has...

nain ophiolite melange is located 140 km east of isfahan. based on the geological studies, this area belongs to mesozoic ophiolite of urumieh – dokhtar zone, west of central iran. country rocks are pridotite and serpentinized pridotite. the pridotite rocks are composed of harzburgite, lherzolite and replacement dunite which is belong to spinel pridotite facies.paragenesis of ore minerals are ch...