Quite common in basic and ultrabasic
rocks, Co is a rare metal existing in porphyritic igneous rocks in small quantities (Dixon, 2012).
It has poor representation in the Guadix river basin, with substrates of basic and ultrabasic
Petrographic analysis reveals that these rocks are serpentinites, which represent rocks generated by secondary alteration of ultrabasic
The sources of this anomalous zone consist of amphibolites and ultrabasic
complex (serpentinites), which are assigned to the Letovice Crystalline (Salansky and Gnojek, 2002).
Cretaceous###-###Muslim Bagh-Zhob Ophiolite###Mostly ultrabasic
and basic igneous rocks###ZoneI
The HP was intruded into the Upper Cretaceous Alihoca ophiolites, which include ultrabasic
rocks, volcano-sedimentary rocks, volcanic rocks, diabases, spilite and glaucophane-bearing schists.
Ironstone genesis is usually associated with weathering of Fe-rich basic (Schwertmann 1993; Beauvais 2009) or ultrabasic
(Trescases et al.
Physical and Mechanical Properties of Serpentinized Ultrabasic
Rocks in NW Turkey.
Geology Rank Weight Total weight Charnockite Group 6 4 24 Gneiss 6 4 24 Ultrabasic
rocks 6 3 18 (a) Geology Weight.
This mineral occurs in calc-silicate marbles with no ultrabasic
rocks occurring either as enclaves or as discrete bodies in the vicinity.
Eocene flysch facies in the study area, set in the South East of Iran, the zone name Zabul - Baluch, Sistan Suture zone and or zone Nehbandan - Kash is Rock units in the study area includes a colorful melange , flysch of Cretaceous, Paleocene and Eocene flysch of the ultrabasic
parts, materials, volcanic and clastic rocks are Neogene .
Geologists classify igneous rocks as acid, intermediate, basic or ultrabasic
on the basis of their (decreasing) content of silica (Si[O.