Results 41 to 50 of about 2,999 (192)
Some mineralogical and geochemical aspects of chromium-bearing skarn minerals from northern Karelia, Finland [PDF]
Bulletin of the Geological Society of Finland, 1986 The chromiferous skarn mineral associations at Outokumpu have been described and a number of characteristic chromium-bearing minerals have been re-examined.
O. von Knorring, E. Condliffe, Y.L. Tong
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GeosciencesThe Kavokta deposit of the dolomite type nephrite is located in the Middle Vitim mountain country, Russia (Russian Federation). The deposit area is composed of granite of the Late Paleozoic Vitimkan complex.
Evgeniy V. Kislov
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Tremolite Whitewashing and Pleural Calcifications
Chest, 1987 Radiologic screening of 688 inhabitants of the Metsovo area in Northwest Greece revealed that 323 (46.9 percent) had pleural calcifications. The percentage of positive examinations rose with age. Calcifications were observed in all four villages of the area where a material ("luto" soil) had been extensively used for whitewashing until 1940 to 1950. In
Constantopoulos, S. H. +5 more
openaire +3 more sources
Characterization and Dielectric Study of Mihaliccik Tremolite
, 2019 The natural tremolite Ca2Mg5Si8O22 OH 2 was obtained from Mihaliccik district of Eskisehir, Turkey 39.8787N 31.3806E . It is a part of the amphibole family of silicate minerals.
Ertugrul Izci
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Archaeometry, EarlyView.ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello +5 more
wiley +1 more source
Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study
Archaeometry, EarlyView.ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei +4 more
wiley +1 more source
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Results of the first comprehensive quantitative analysis of the mechanical properties of New Zealand nephrite jade (pounamu), including hardness, Young's modulus, fracture toughness and notched flexural strength are reported for seven samples. These samples of exceptional quality were pre‐selected by experienced Māori carvers through a ranking process.
Natalia Seliutina +7 more
wiley +1 more source
Geology and Geochemistry of the Early Proterozoic Kortejärvi and Laivajoki Carbonatites, Central Fennoscandian Shield, Finland [PDF]
Bulletin of the Geological Society of Finland, 1997 This paper provides for the first time extensive petrological, mineralogical and geochemical data on the early Proterozoic Kortejärvi and Laivajoki carbonatites, northern Finland, which form metamorphosed and highly strained bodies 2 and 4 km long within
J. Nykänen, K. Laajoki, J. Karhu
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Journal of Metamorphic Geology, Volume 44, Issue 8, Page 585-610, September 2026.ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva +7 more
wiley +1 more source
Heavy Liquid Separation Method for Enhancement of Trace Asbestos Detection
CrystalsPowder X-ray diffraction (XRD) is a widely accepted technique for detecting trace asbestos content in solid samples. However, accurately quantifying asbestos concentrations below 0.5 wt% presents significant challenges with XRD alone.
Sasithorn Chornkrathok +3 more
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