SVIBOR - Project code: 1-09-238

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
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Project code: 1-09-238

Geochemical-petrological study of the metamorphic reactions in rocks

Main researcher: MARCI, VERA (28141)

Assistants

Type of research: basic
Duration from: 04/30/91. to 04/30/94.

Papers on project (total): 5

Institution name: Prirodoslovno-matematički fakultet, Prirodoslovni odjeli, Zagreb (119)
Department/Institute: Department of Mineralogy and Petrology
Address: Demetrova 1
City: 10000 - Zagreb, Croatia

Communication: Phone: 385 (0)1 422-136; Phone: 385 (0)1 428-610; Fax: 385 (0)1 42 21 36; E-mail: drbalen@public.srce.hr

Summary: Investigation the garnets of various type of metamorphic rocks from Selečka mountain suggest their formation in prograde metamorphic rocks as in muscovite schist and amphibole schist or highly metasomatic condition as in aplite granite, aplite and metabasite. Geometric approach is used tp present the path of metamorphic reactions in metabasite. The reactions obtained by diagram are proved with detail microscopic examination. Differences and relations between mineral assemblage of amphibole schist and amphibolites from Psunj were investigated by various methods. Mineral assemblages belong to transition zone between greenschists and amphibolite facies.

Keywords: garnets, metamorphism, Selečka mountain, metamorphic reactions, Schreinemakers diagrame, amphibole, amphibole bearing rocks, epidote amphibolite facies, microprobe, matrix analyses, Psunj

Research goals: Principal idea to study chemical changes the garnets from various metamorphic rocks of Selečka mountain is to establish the type of metamorphic proccess. The relation metamorphic proccess and chemistry of garnets were studied on representative patterns. Chemistry of garnets from Selečka were correlated with literature data to solve the type of metamorphic proccess. Succession of metamorphic reactions in metabasite from Selečka are solved with geometric approach by Schreinemaker. Established differences in minerals and find out the conditions of metamorphism in amphibole bearing mineral assemblages.

Other information about the project.


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