The results of the microthermometry investigations of fluid inclusions in quartzites from the Bural-Sardyk deposit (Eastern Sayan)

2016 ◽  
Keyword(s):  
Fluid Inclusions ◽  
Eastern Sayan

scholarly journals The fluid inclusions in «compact» quartz from the Oka-Urik block (Eastern Sayan)

2019 ◽  
Vol 148 (3) ◽  
pp. 94-101
Author(s):  
Volkova M.G. ◽  
◽  
Nepomnyashchikh A.I. ◽  
Fedorov A.M. ◽  
◽  
...  
Keyword(s):  
Fluid Inclusions ◽  
Eastern Sayan

Characterization of submicrometer fluid Inclusions in minerals by Analytical/Transmission Electron Microscopy and electron diffraction

1990 ◽  
Vol 48 (4) ◽  
pp. 424-424
Author(s):  
George Guthrie ◽  
David Veblen
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Electron Microscope ◽  
Electron Diffraction ◽  
Light Microscopy ◽  
Fluid Inclusions ◽  
Energy Dispersive Spectrometer ◽  
Analytical Transmission Electron Microscopy ◽  
Transmission Electron

The nature of a geologic fluid can often be inferred from fluid-filled cavities (generally <100 μm in size) that are trapped during the growth of a mineral. A variety of techniques enables the fluids and daughter crystals (any solid precipitated from the trapped fluid) to be identified from cavities greater than a few micrometers. Many minerals, however, contain fluid inclusions smaller than a micrometer. Though inclusions this small are difficult or impossible to study by conventional techniques, they are ideally suited for study by analytical/ transmission electron microscopy (A/TEM) and electron diffraction. We have used this technique to study fluid inclusions and daughter crystals in diamond and feldspar.Inclusion-rich samples of diamond and feldspar were ion-thinned to electron transparency and examined with a Philips 420T electron microscope (120 keV) equipped with an EDAX beryllium-windowed energy dispersive spectrometer. Thin edges of the sample were perforated in areas that appeared in light microscopy to be populated densely with inclusions. In a few cases, the perforations were bound polygonal sides to which crystals (structurally and compositionally different from the host mineral) were attached (Figure 1).

To the lichen flora of Oka Plateau (Eastern Sayan, Republic of Buryatia)

2009 ◽  
Vol 43 ◽  
pp. 229-245 ◽  
Author(s):  
I. N. Urbanavichene ◽  
G. P. Urbanavichus
Keyword(s):  
Lichen Species ◽  
Southern Siberia ◽  
Eastern Sayan ◽  
First Time ◽  
Lichen Flora

New data on the distribution of 329 lichen species in Oka Plateau (Eastern Sayan, Southern Siberia, Republic of Buryatia) are presented. 7 species are reported for the first time for lichen flora of Russia: Leptogium furfuraceum, Melanelixia villosella, Myxophora leptogiophila, Pachyphiale ophiospora, Physcia cf. integrata, Polycoccum clauzadei, Stigmidium psorae. 14 species are recorded for the first time to Southern Siberia: Arthonia clemens, Bacidina delicata, Caloplaca saxifragarum, Lecidea septentrionalis, Leciophysma finmarkicum, Leptogium intermedium, Phaeosporobolus alpinus, Rhizocarpon frigidum, Rinodina metaboliza, R. olivaceobrunnea, Tetramelas chloroleucus, T. phaeophysciae, Weddellomyces tartaricola, Xanthoria stiligera. The records of Myxophora leptogiophila, Pachyphiale ophiospora, Polycoccum clauzadei, Stigmidium psorae, Weddellomyces tartaricola are the first to Asia.

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