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Devonian and Carboniferous metamorphism in west-central Maine; the muscovite-almandine geobarometer and the staurolite problem revisited
M. J. Holdaway, B. L. Dutrow and R. W. Hinton
Devonian and Carboniferous metamorphism in west-central Maine; the muscovite-almandine geobarometer and the staurolite problem revisited
American Mineralogist (February 1988) 73 (1-2): 20-47
Devonian and Carboniferous metamorphism in west-central Maine; the muscovite-almandine geobarometer and the staurolite problem revisited
American Mineralogist (February 1988) 73 (1-2): 20-47
Index Terms/Descriptors
- almandine
- Carboniferous
- Devonian
- Franklin County Maine
- garnet group
- geologic barometry
- geologic thermometry
- Kennebec County Maine
- Maine
- metamorphic rocks
- metamorphism
- mica group
- mineral assemblages
- muscovite
- nesosilicates
- orthosilicates
- Oxford County Maine
- P-T conditions
- Paleozoic
- petrology
- polymetamorphism
- sheet silicates
- silicates
- Somerset County Maine
- staurolite
- thermal metamorphism
- United States
- zoning
- west-central Maine
- Androscoggin
Latitude & Longitude
Abstract
Important thermal metamorphic events in west-central Maine occurred at 400, 394-379 and 325 m.y. Each is closely associated with emplacement of S-type granites, such that the isograd patterns produced in the surrounding pelitic schists generally follow plutonic outlines. From N to S, grade of metamorphism varies from chlorite to sillimanite-K-feldspar-muscovite. The results of mineral-chemistry studies are reported.
ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 73
Serial Issue: 1-2
Title: Devonian and Carboniferous metamorphism in west-central Maine; the muscovite-almandine geobarometer and the staurolite problem revisited
Affiliation: South. Methodist Univ., Dep. Geol. Sci.,
Dallas, TX,
United States
Pages: 20-47
Published: 198802
Text Language: English
Publisher: Mineralogical Society of America,
Washington, DC,
United States
References: 98
Accession Number: 1988-027955
Categories: Igneous and metamorphic petrologyMineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 14 tables, sketch map
N44°00'00" - N45°00'00", W70°45'00" - W69°45'00"
Secondary Affiliation: La. State Univ.,
USA,
United StatesUniv. Chicago,
USA,
United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1988
