Abstract
Abundant multiphase brine inclusions occur in omphacites from mafic eclogites in the Western Gneiss Region (WGR) and in the Bergen Arc Nappes, southern Norway. The eclogites formed during the Caledonian continent-continent collision c. 420 m.y. ago, as a result of prograde metamorphism of amphibolite facies rocks or hydration of granulites. Fluid inclusions are present both in matrix omphacites and in omphacites from eclogite facies veins. The fluid inclusion bearing omphacites are iron-rich, with an iron-content up to Fe/(Fe+Mg) = 0.53. The observed fluid inclusions are considered to be primary or pseudosecondary and all are elongated parallel to the c-axis in omphacite. They range in size up to c. 110 ~tm. Inclusions from different localities show similar features; they are all brines and contain calcite crystals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
