The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The U-Pb and Sm-Nd dating of deep crustal rocks from the Bergen Arcs system helps resolve enigmatic aspects of the tectonic evolution of the Caledonian Orogen in western Norway and yields insights into the arrested stages of eclogite development within the granulites of the area. The U-Pb dating of zircon from one of the eclogite facies shear zones yields an upper intercept age of 945 ± 5 Ma [all...
The Seljeneset Meta-anorthosite consists of deformed and metamorphosed anorthosite and mafic rocks, is situated in the high-grade Western Gneiss Region (WGR) of Norway, and is adjacent to the 1.52 Ga Flatraket quartz monzonite (mangerite). The WGR was metamorphosed to eclogite facies during Caledonian tectonism 414 ± 16 Ma ago. The Meta-anorthosite contains 46-57 wt.% SiO 2 and displays...
Eclogites from different parts of the Variscan basement of the Bohemian Massif show a variation in temperatures recorded at peak pressures as well as during subsequent exhumation. These differences are reflected in the extent of modification of pre-, syn- and post-eclogite facies garnet compositions and by the types of reactions taking place at garnet rims. Munchberg Massif eclogites formed at conditions...
Eclogites from different parts of the Variscan basement of the Bohemian Massif show a variation in temperatures recorded at peak pressures as well as during subsequent exhumation. These differences are reflected in the extent of modification of pre-, syn- and post-eclogite facies garnet compositions and by the types of reactions taking place at garnet rims. Munchberg Massif eclogites formed at conditions...
Massif lenses and bands of variably retrogressed eclogites occur within the granulite facies Proterozoic basement of the Lofoten islands in northern Norway. Eclogites are often related to shear and mylonite zones suggesting that deformation and fluid access was important for their formation. The eclogitic rocks are restricted to gabbroic or troctolitic rock compositions and show, in the least retrogressed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.