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GEOREF RECORD

Origin of fluorapatite-monazite assemblages in a metamorphosed, sillimanite-bearing pegmatoid, Reinbolt Hills, East Antarctica

Martin A. Ziemann, Hans-Juergen Foerster, Daniel E. Harlov and Dirk Frei
Origin of fluorapatite-monazite assemblages in a metamorphosed, sillimanite-bearing pegmatoid, Reinbolt Hills, East Antarctica
European Journal of Mineralogy (August 2005) 17 (4): 567-579

Abstract

Thermobarometrical and mineral-chemical investigations by electron microprobe and LA-ICP-MS on a sillimanitebearing pegmatoid from the Reinbolt Hills provide important constraints on the P-T-X-age relations of part of East Antarctica during Pan-African tectonism. U-Th-total Pb ages of monazite imply that the pegmatoid of originally Grenvillan age (zircon U-Pb age of ca. 900 Ma) underwent a major, late Pan-African (Cambrian) regional, granulite-facies metamorphism between 500 and 550 Ma. Most of the monazite formed during this event, as result of apatite metasomatism owing to infiltration of high-grade metamorphic fluids. Apatite-biotite and other mineral thermobarometers define the peak metamorphic temperatures and pressures with 850-950 degrees C and 0.8-1.0 GPa. (mod. journ. abst.)


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 17
Serial Issue: 4
Title: Origin of fluorapatite-monazite assemblages in a metamorphosed, sillimanite-bearing pegmatoid, Reinbolt Hills, East Antarctica
Affiliation: University of Potsdam, Institute of Earth Sciences, Potsdam, Federal Republic of Germany
Pages: 567-579
Published: 200508
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 41
Accession Number: 2006-013170
Categories: General mineralogyIgneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables, geol. sketch maps
S70°30'00" - S70°30'00", E72°30'00" - E72°30'00"
Secondary Affiliation: GeoForschungsZentrum Potsdam, DEU, Federal Republic of GermanyDenmark and Greenland Geological Survey, DNK, Denmark
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200607
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