نتایج جستجو برای: glaucophane schist

تعداد نتایج: 654  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1388

چکیده ندارد.

2007
YONG-GANG LI

Seismic and gravity data taken along line 1 of the 1982 Consortium for Continental Reflection Profiling (COCORP) Mojave Desert Survey (N-S profile, -30 km long) have been used to characterize the upper crust north of the San Andreas fault in the western Mojave block of southern California. Consortium for Continental Reflection Profiling seismic reflection data were reprocessed to emphasize the ...

Journal: :Journal of Metamorphic Geology 2023

Chloritoid and kyanite coexist in metapelites from the high-pressure/low-temperature Massa Unit Alpi Apuane metamorphic complex (Northern Apennines, Italy). The composition of chloritoid is extremely variable throughout Unit. Fe-chloritoid occurs association with hematite-free, graphite-bearing schists, whereas strongly zoned Fe-Mg found hematite kyanite. We investigated effect different bulk F...

Journal: :Earth sciences 2022

Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature borehole yield of sub-basin Osun basin in the Northern part Ilesha, southwestern Nigeria. Four factors (Geomorphological unit, Slope, regional structure, lineament) considered. Geomorphological units classified based on digital elevation model (DEM), Lineaments identified extracted us...

Journal: :European Journal of Mineralogy 2021

Abstract. In this paper, we present the results of a multi-analytical characterization glaucophane sample collected in Piedmont region northwestern Italy. Investigation methods included optical microscopy, powder X-ray diffraction, Fourier-transform infrared spectroscopy, µ-Raman Mössbauer electron probe microanalysis, environmental scanning microscopy and energy-dispersive scanning/transmissio...

Journal: :Journal of Petrology 2022

Abstract Garnet–kyanite–staurolite assemblages with large, late porphyroblasts of amphibole form garbenschists in Ordovician volcaniclastic rocks lying immediately south the Pearya terrane on northernmost Ellesmere Island, Canada. The schist, which together carbonate olistoliths makes up Petersen Bay Assemblage (PBA), displays a series parallel isograds that mark an increase metamorphic grade o...

2012
Elsa Lacroix Alessandro Brovelli Christof Holliger D. A. Barry

Accurate control of groundwater pH is of critical importance for in situ biological treatment of chlorinated solvents. This study evaluated a novel approach for buffering subsurface pH that relies on the use of silicate minerals as a long-term source of alkalinity. A screening methodology based on thermodynamic considerations and numerical simulations was developed to rank silicate minerals acc...

2000
BERNARD E. LEAKE

The International Mineralogical Association's approved amphibole nomenclature has been revised in order to simplify it, make it more consistent with divisions generally at 50%, define prefixes and modifiers more precisely and include new amphibole species discovered and named since 1978, when the previous scheme was approved. The same reference axes form the basis of the new scheme and most nam...

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