Zobrazeno 1 - 10
of 10 716
pro vyhledávání: '"Ophiolite"'
Publikováno v:
Discover Geoscience, Vol 2, Iss 1, Pp 1-16 (2024)
Abstract Serpentine minerals, either polymorphs or polytypes (mostly chrysotile, lizardite and antigorite), are hardly distinguished in ophiolitic serpentinites and serpentinized peridotite unless sophisticated mineralogical tools are applied. Among
Externí odkaz:
https://doaj.org/article/d0693a01f072447caf4351859f2ebbd5
Autor:
Matija Vukovski, Marko Špelić, Duje Kukoč, Tamara Troskot-Čorbić, Tonći Grgasović, Damir Slovenec, Bruno Tomljenović
Publikováno v:
Swiss Journal of Geosciences, Vol 117, Iss 1, Pp 1-28 (2024)
Abstract A comprehensive study, including geological mapping, structural and thermochronological analysis, has been carried out on Ivanščica Mountain (NW Croatia), with the aim to reconstruct the tectonic history of the Dinarides, Southern/Eastern
Externí odkaz:
https://doaj.org/article/3793d894b134413f9a02f9be225fc8ae
Publikováno v:
Open Geosciences, Vol 16, Iss 1, Pp 765-76 (2024)
The Mélange in Lamphun Province, situated in the southern region of the Chiang Mai-Chiang Rai Suture Zone (CMCRSZ), remains inadequately explored. This study employs field investigations and petrographic analysis to delineate the characteristics of
Externí odkaz:
https://doaj.org/article/d2b0cd917aa4426ea45aeab7e38c50f2
Autor:
D. E. Saveliev, R. A. Gataullin
Publikováno v:
Georesursy, Vol 25, Iss 3, Pp 208-215 (2024)
The findings of platinum group metal mineralization (PGM) and the distribution of platinum group elements (PGE) in lherzolites of the Northern Kraka massif are described. The total contents of PGE are approximately two orders of magnitude lower than
Externí odkaz:
https://doaj.org/article/4f3e71de032c4bb1ae215c291a14c08f
Autor:
D. E. Saveliev
Publikováno v:
Georesursy, Vol 24, Iss 3, Pp 197-209 (2024)
Data on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted
Externí odkaz:
https://doaj.org/article/fe4deab27fcb42e39a1f2d183e4e9aac
Publikováno v:
Georesursy, Vol 24, Iss 1, Pp 62-73 (2024)
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
Externí odkaz:
https://doaj.org/article/23ee0d62b66341d8ae51c1dd5c0ba08c
Autor:
Ren-Deng Shi, Guang-hao Cui, Qi-Shuai Huang, Xiao-Xiao Huang, Haibo Zou, Xiaohan Gong, Jing-Sui Yang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract This paper reports lithium concentrations and isotopic compositions of olivines in the oceanized subcontinental lithospheric mantle (SCLM) peridotites of the Tibetan Yunzhug ophiolite. The results show systematic Li isotope changes with dist
Externí odkaz:
https://doaj.org/article/9f5c0b9dd3384c9eb35a381d7374a590
Publikováno v:
Journal of Economic Geology, Vol 15, Iss 4, Pp 55-79 (2023)
In central part of the Mesozoic Ashin ophiolite (Northwest of Anarak, Isfahan province, Iran), the Upper Eocene monzonitic stock cross cuts the Ashin ophiolite and Middle Eocene volcanic rocks. Amphibolite xenoliths are enclosed in the stock and asso
Externí odkaz:
https://doaj.org/article/edfb901d923e404e8427dcad3da28ec8
Publikováno v:
Geosystems and Geoenvironment, Vol 3, Iss 2, Pp 100074- (2024)
Seamounts are prominent seafloor features that make inhomogeneous oceanic crust, carried by some moving plates and eventually accreted or subducted at convergent margins. These seamounts contribute to subduction dynamics, continental crustal growth,
Externí odkaz:
https://doaj.org/article/30ebf8886a3c47a1b49488f52a48df18