Refbacks
- There are currently no refbacks.
![](/public/site/images/onkadmin/dj_logo1.png)
![](/public/site/images/onkadmin/ulrichs_logo.gif)
![](/public/site/images/onkadmin/ebsco1.png)
![](/public/site/images/onkadmin/elibrary_logo.jpg)
![](/public/site/images/onkadmin/vak1.png)
![](/public/site/images/onkadmin/oai_logo1.png)
![](/public/site/images/onkadmin/cyberleninka_sm1.png)
![](/public/site/images/onkadmin/crossref1.png)
![](/public/site/images/onkadmin/wrldcat_logo1.png)
![](/public/site/images/onkadmin/logo_цнб_уро_ран1.gif)
![](/public/site/images/onkadmin/logo_нб_коми_нц1.png)
![](/public/site/images/onkadmin/scholar1.png)
![](/public/site/images/onkadmin/GeoRefsm1.png)
I. Ya. Ilaltdinov
Perm State University, 15 Bukireva Str., Perm, 614990, Russia
Russian Federation
Cand. Geol.-Min. Sci., Docent of Mineralogy and Petrography Department
B. M. Osovetsky
Perm State University 15 Bukireva Str., Perm 614990, Russia
Russian Federation
Dr. geol.-min. Sci., Professor, Department of Mineralogy and Petrography
The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).
If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.
Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.