Abstract
 Administratively, the research area is included in North Morowali Regency, Central Sulawesi Province, Java which 49 S zone with UTM (Universal Transverse Mercator) coordinates 9152800 – 400800 - 406800 mE an of ​​± 54 km2 (9 km x 6 km). ). One factors that influence formation laterite nickel deposits source rock. The purpose this to focus on characteristics original rock, namely ...

Ophiolite magnesite deposits are among the main sources of magnesite, a raw material critical for EU. The present work focuses on occurrences at Kymasi (Evia Island, Greece), in close spatial association with chromitite within same peridotite massif, and relationship between ultramafic rocks late veins. Chromitite lenses hosted dunite, contact partially serpentinized cut by Close to veins, show...

The lopolithic Pados-Tundra layered complex, the largest member of Serpentinite belt–Tulppio belt (SB–TB) megastructure in Fennoscandian Shield, is characterized by (1) highly magnesian compositions comagmatic dunite–harzburgite–orthopyroxenite, with primitive levels high-field-strength elements; (2) maximum values Mg# olivine (Ol, 93.3) and chromian spinel (Chr, 57.0) Dunite block (DB), which ...

Our knowledge of melt distribution in the lower crust and upper mantle at oceanic fast spreading centers is very limited. Evidence accumulation, sometimes away from axis, has been imaged interpreted Moho East Pacific Rise; but detailed structures these deep magma lenses remains much more difficult to unveil than that shallow axial lens top plutonic crust. Ophiolites offer on-land sections litho...

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...