Results 81 to 90 of about 10,898 (175)

Composition and Mineralogical Features of Ultramafic Rocks of Eastern Part of Southern Kraka Massif (South Urals)

Georesursy
The paper presents new data on the structure and composition of ultramafic rocks in the eastern part of the South Kraka massif. It is shown that the studied area is composed predominantly of spinel peridotites, among which the main role belongs to ...
D. E. Saveliev, A. I. Biembetov, T. D. Shabutdinov, A. A. Samigullin, R. A. Gataullin   +4 more
doaj   +1 more source

Chemical and Mineralogical Characteristics of the Microscopic-sized Epidotes in the Metamorphic Basement Rocks within the Late Cretaceous Hatip Ophiolitic Melange in Konya Central Southern Turkey

Hittite Journal of Science and Engineering, 2019
A metamorphism in green-schist facies conditions. The epidote crystals is subhedral to eu- hedral, with high Al2O3 26-30 % and low Fe2O3 5–8% contents.
Kerim Kocak, Raziye Merve Kaya
doaj   +1 more source

(Table 4a) Microprobe analyses of minerals from olivine gabbro of the ophiolite complex in the Hunter Fracture Zone

, 2003
(Table 4a) Microprobe analyses of minerals from olivine gabbro of the ophiolite complex in the Hunter Fracture ...
L A Tararin (6960587), Chubarov, K M, K M Chubarov (6965408), T M Filosofova (6965411), Tararin, L A, Filosofova, T M   +5 more
core   +1 more source

Morphological, textural and structural features of chromitite deposits of Main ore field of Kempirsay massif (South Urals, Kazakhstan)

Georesursy
In the paper data of morphology, textural and structural features of chromitites from deposits of southeast part of Kempirsay massif (South Urals, Kazakhstan) are summarized. It is showed that formation of unique chromium deposits is closely related with
D. E. Saveliev, D. K. Makatov, V. S. Portnov, R. A. Gataullin   +3 more
doaj   +1 more source

Geology and geochemistry of the Shuanggou ophiolite (Ailao Shan ophiolitic belt), Yunnan Province, SW China: Evidence for a slow-spreading oceanic basin origin

, 2008
The early Carboniferous Shuanggou ophiolite lies in the middle segment of the Ailao Shan orogenic belt between the South China Block to the north and the Indochina Block to the south. The ophiolite consists of meta-peridotite, gabbro, diabase and basalt,
Zhou, MF, Wang CY, Zhao TP, Dimalanta CB, Zhao, TP, Yumul GP, Wang, CY, Dimalanta, CB, Yumul, GP Jr, Zhou MF   +9 more
core   +1 more source

Magmatic significance and hydrothermal alteration of layered chromitites from the Bracco Gabbro Complex, Ligurian Ophiolites, Italy

Bulletin of the Mineral Research and Exploration
The Bracco chromitites are hosted in the Mesozoic Ligurian Ophiolites (Italy) and provide key insights into the magmatic and post-magmatic (i.e. metamorphic and hydrothermal) evolution ofgabbro-hosted chromitites in an oceanic mantle.
Federica Zaccarini, Raphael J. Baumgartner, Constantinos Mavrogonatos, Giorgio Garuti   +3 more
doaj   +1 more source

(Table 5b) Chemical composition of gabbro-norite and gabbro-dolerite from the ophiolite complex in the Hunter Fracture Zone

, 2003
(Table 5b) Chemical composition of gabbro-norite and gabbro-dolerite from the ophiolite complex in the Hunter Fracture ...
L A Tararin (6960587), Chubarov, K M, K M Chubarov (6965408), T M Filosofova (6965411), Tararin, L A, Filosofova, T M   +5 more
core   +1 more source

Chemical and Thermal Changes in Mg₃Si₂O₅ (OH)₄ Polymorph Minerals and Importance as an Industrial Material

Applied Sciences
Serpentine (Mg3Si2O5(OH)4), like quartz, dolomite and magnesite minerals, is a versatile mineral group characterized by silica and magnesium silicate contents with multiple polymorphic phases.
Ahmet Şaşmaz, Ayşe Didem Kılıç, Nevin Konakçı   +2 more
doaj   +1 more source

(Table 4b) Microprobe analyses of minerals from highly amphibolized gabbro of the ophiolite complex in the Hunter Fracture Zone

, 2003
(Table 4b) Microprobe analyses of minerals from highly amphibolized gabbro of the ophiolite complex in the Hunter Fracture ...
L A Tararin (6960587), Chubarov, K M, K M Chubarov (6965408), T M Filosofova (6965411), Tararin, L A, Filosofova, T M   +5 more
core   +1 more source

(Table 3c) Microprobe analyses of minerals from bipyroxene gabbro-dolerites of the ophiolite complex in the Hunter Fracture Zone

, 2003
(Table 3c) Microprobe analyses of minerals from bipyroxene gabbro-dolerites of the ophiolite complex in the Hunter Fracture ...
L A Tararin (6960587), Chubarov, K M, K M Chubarov (6965408), T M Filosofova (6965411), Tararin, L A, Filosofova, T M   +5 more
core   +1 more source