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Li, Be, B, and Sr in margarite and paragonite from Antarctica

Edward S. Grew, James R. Hinthorne and Nicholas Marquez
Li, Be, B, and Sr in margarite and paragonite from Antarctica
American Mineralogist (October 1986) 71 (9-10): 1129-1134

Abstract

Peraluminous margarite and paragonite of retrograde origin in a staurolite- and corundum-bearing talc-tourmaline-phlogopite-chlorite schist from Mount Bernstein, northern Victoria Land contain 0.17 and 0.18 wt% Li2O, 0.05 and 0.004% BeO, 0.02 and 0.31% BaO, and 0.26 and 1.3% SrO, respectively, by ion-microprobe analysis. In addition, only 0.01% F and 0.02-0.03% B2O3 and no Rb were found with the ion microprobe. This is the first report of significant amounts of Li and Sr in paragonite. The unusual compositions of the paragonite and margarite are attributed to their ability to incorporate Li released from breakdown of lithian staurolite and Sr made available during a retrograde metamorphic stage in a silica-undersaturated rock. (Auth. mod.)


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 71
Serial Issue: 9-10
Title: Li, Be, B, and Sr in margarite and paragonite from Antarctica
Affiliation: Univ. Maine, Dep. Geol. Sci., Orono, ME, United States
Pages: 1129-1134
Published: 198610
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 36
Accession Number: 1987-020635
Categories: Mineralogy of silicatesGeochemistry of rocks, soils, and sediments
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 3 tables
Secondary Affiliation: Cent. Wash. Univ., USA, United StatesAerosp. Corp., USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States
Update Code: 1987
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