Garnet zoning and orthopyroxene + plagioclase coronitisation

1977 ◽  
Vol 61 (3) ◽  
pp. 267-277 ◽  
Author(s):  
Jacques Kornprobst
Keyword(s):  
1981 ◽  
Vol 44 (335) ◽  
pp. 301-307 ◽  
Author(s):  
C. Sivaprakash

AbstractZoning in garnets in Barrovian garnet zone rocks of central Perthshire is shown to be dependent on the continuous prograde reaction histories in which the garnet was involved. In highly aluminous rocks, garnet grows at the expense of chloritoid and staurolite whereas in less aluminous rocks garnet grows at the expense of chlorite. Minerals included in garnet such as ilmenite, plagioclase, chlorite, and chloritoid show compositional changes which with the garnet zoning elucidate the garnet-forming reactions. Where garnet is resorbed to produce staurolite the former loses Fe at its rim to staurolite so that ‘reverse’ zoning of decreasing Fe and increasing Mn and Ca towards garnet rim develops.


Lithos ◽  
1986 ◽  
Vol 19 (1) ◽  
pp. 51-63 ◽  
Author(s):  
Shohei Banno ◽  
Chihiro Sakai ◽  
Toshio Higashino
Keyword(s):  

2006 ◽  
Vol 10 (3-4) ◽  
pp. 379-388 ◽  
Author(s):  
Hyeong Soo Kim
Keyword(s):  

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