Petrochemistry and origin of the Raudhamaren Ultramafites, Jotunheimen.
Journal article
![Thumbnail](/ngu-xmlui/bitstream/handle/11250/2674968/NGUnr_300_Bulletin_20Murthy_41_52.pdf.jpg?sequence=3&isAllowed=y)
Åpne
Permanent lenke
https://hdl.handle.net/11250/2674968Utgivelsesdato
1973Metadata
Vis full innførselSamlinger
- Artikler [1064]
Sammendrag
The ultramafites show gradual petrochemical variation and Mg\/Feratios indicative of crystallisation differentiation from stratiformtype mafic magma series. The country rocks with which they are inprimary association, however, have a calc-alkaline trend of evolution,more indicative of affiliation with th alpine type. The ultramafitesare essentially spinel peridotites thought to have formed in a dryenvironment by diapiric upwelling during the basaltic (gabbroic)evolution of the Upper Mantle.