Results 181 to 190 of about 3,074 (215)

The Dunites in the Balmuccia peridotite massif.

2007
The Balmuccia massif is dominantly lherzolitic. Dunites are a minor lithotype occurring: a) at the contacts of websterite dykes; b) as tabular bodies associated with layers of Cr-rich spinel; c) as large, decametric lenses typically associated with hornblendite pockets and veins. Type a dunites are 15 cm), olivine coexists with clinopyroxene.
RIVALENTI, Giorgio, MAZZUCCHELLI, Maurizio, BRUNELLI, Daniele, ZANETTI A, TOMMASINI S, BOARI E.   +5 more
openaire   +2 more sources

Chlorine in Partially Serpentinized Dunite

Economic Geology, 1972
Chlorine in concentrations as high as 0.8% is shown to have a definite distribution pattern in serpentine veins in a dunite. Such high chlorine concentrations are unusual in ultramafic rocks, but evidence suggests that chlorine may play a significant role in the alteration of olivine and in the redistribution of cations.
openaire   +1 more source

Acid Dissolution of Olivines, Feldspars and Dunite

Water, Air, and Soil Pollution, 2001
We have treated feldspars (orthoclase, albite, anorthite), JF-1 (a mixture of orthoclase and albite), olivines (fayalite, forsterite) and JP-1 (dunite: an olivine-rich rock) with HNO3 solution at pH 2 for 10 – 1200 min. The resultant changes in surface composition were assessed by X-ray photoelectron spectroscopy (XPS).
Mayumi Kobayashi, Akira Sawada, Yukinori Tani, Mitsuyuki Soma, Atsushi Tanaka, Takuya Honma, Haruhiko Seyama, Benny K.G. Theng   +7 more
openaire   +1 more source

Preparation Process of Magnesium Hydroxide by Dunite

Advanced Materials Research, 2013
The preparation process of magnesium hydroxide, which was prepared by acid leaching method using dunite as material, was introduced. Dunite was firstly calcined for 4h at 700°C and treated by 4.0 mol/L of H2SO4 solution at 100°C for 2h. Secondly, the leaching solution was oxidized by H2O2, and ammonia was added in the solution to adjust its pH to 7.0-8.
openaire   +1 more source

The dunites of the Balmuccia peridotitic massif

2007
abs
RIVALENTI, Giorgio, MAZZUCCHELLI, Maurizio, BRUNELLI, Daniele, Zanetti Alberto, Tommasini Simone, Boari Elena   +5 more
openaire   +1 more source

The dunites of the Iov deposits

Refractories, 1977
A. A. Efimov, L. P. Efimova
openaire   +1 more source

dunite, n.

2023
openaire   +1 more source

Searching for Mantle Dunite Candidates Around the Imbrium Basin Among the Boulder Population Using High Resolution Mineral Mapping

Earth and Planetary Science Letters, 2023
Paul G Lucey, Lingzhi Sun
exaly  

Zircons: Implication for dunite genesis

Doklady Earth Sciences, 2014
A. A. Krasnobaev, V. N. Anfilogov
openaire   +1 more source

Thermal Properties of Harzburgite and Dunite at 0.8–3 GPa and 300–823 K and Implications for the Thermal Evolution of Tibet

Geoscience Frontiers, 2021
Heping Li, Baohua Zhang, Lanfang He
exaly