scholarly journals Metamorphic Studies in the Transition Zone Between the Lynn Lake Greenstone Belt and the Kisseynew Gneiss Belt, Laurie Lake, Manitoba

1986 ◽  
Author(s):  
S L Jackson ◽  
T M Gordon
Keyword(s):  
Transition Zone ◽  
Greenstone Belt ◽  
Lynn Lake

scholarly journals Age relationships and preliminary U-Pb zircon geochronology results from the Lynn Lake Greenstone Belt

2018 ◽  
Author(s):  
C J M Lawley ◽  
D Schneider ◽  
E Yang ◽  
W J Davis ◽  
S E Jackson ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Zircon Geochronology ◽  
Lynn Lake

Theoretical modeling of the regular olivine intergrowths in the mimetic paramorphosis after ringwoodite and wadsleyite

2018 ◽  
pp. 3-12
Author(s):  
B. B. Shkursky
Keyword(s):  
Transition Zone ◽  
Theoretical Modeling ◽  
Mantle Transition Zone ◽  
Misorientation Angles

Theoretical modeling of regular olivine grains misorientations in mimetic paramorphoses after ringwoodite and wadsleyite, the formation of which during the ascension of matter from the Mantle Transition Zone is expected, has been carried out. The coordinates of the misorientation axes and the misorientation angles, characterizing 10 operations of alignment in the pair intergrowths of olivine grains, eight of which are twins, are calculated. Possible conditions for the formation of mimetic paramorphoses predicted here, and the chances of their persistence are discussed. The calculated orientations are compared with the known twinning laws of olivine.

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