Evaluation of forest disturbance in south-west Zabaikalia (East Siberia)

2013 ◽  
Vol 15 (4) ◽  
pp. 332-339 ◽  
Author(s):  
T. A. Mikhailova ◽  
L. V. Afanasieva ◽  
O. V. Kalugina ◽  
O. V. Shergina
Polar Record ◽  
1948 ◽  
Vol 5 (35-36) ◽  
pp. 185-188 ◽  
Author(s):  
J. G. Elbo

Cryolite is a rare mineral which is only mined in Greenland and is one of the most important assets in- Greenland economy. It is grey-white and translucent, almost like ice when wet, a fluoride of sodium and aluminium with the chemical formula Na3AlF6. The only commercial source is at Ivigtut in south-west Greenland, whilst the only two other known occurrences—at Pikes Peak, Colorado, and Miass in the Urals—are both small and impure. Lately, however, the Russians have claimed that the geological structure of Kol'ski Poluostrov (Kola Peninsula) would indicate the likelihood of cryolite being found there, and there are also reports of a mine in active production in East Siberia on the Manchurian border.


2019 ◽  
Vol 25 ◽  
pp. 317
Author(s):  
Ayotunde Ale ◽  
Opeyemi Aloro ◽  
Ayanbola Adepoju
Keyword(s):  

2019 ◽  
Vol 25 ◽  
pp. 121-122
Author(s):  
Olufunmilayo Adeleye ◽  
Ejiofor Ugwu ◽  
Anthonia Ogbera ◽  
Akinola Dada ◽  
Ibrahim Gezawa ◽  
...  

1991 ◽  
Vol 102 (5-6) ◽  
pp. 437-443
Author(s):  
B. M. Sharma
Keyword(s):  

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
I Dike ◽  
O Obembe ◽  
O Rotimi ◽  
E Adebiyi

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