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GEOREF RECORD
Magma-mixing in the low velocity zone; kimberlitic megacrysts from Fayette County, Pennsylvania
Robert H. Hunter and Lawrence A. Taylor
Magma-mixing in the low velocity zone; kimberlitic megacrysts from Fayette County, Pennsylvania
American Mineralogist (February 1984) 69 (1-2): 16-29
Magma-mixing in the low velocity zone; kimberlitic megacrysts from Fayette County, Pennsylvania
American Mineralogist (February 1984) 69 (1-2): 16-29
Index Terms/Descriptors
- chain silicates
- clinopyroxene
- diopside
- Fayette County Pennsylvania
- fractionation
- garnet group
- geochemistry
- geologic barometry
- geologic thermometry
- high temperature
- igneous rocks
- inclusions
- kimberlite
- low-velocity zones
- magmas
- megacrysts
- mica group
- minor elements
- nesosilicates
- olivine
- olivine group
- orthosilicates
- oxides
- P-T conditions
- Pennsylvania
- petrography
- petrology
- phlogopite
- pollution
- pyroxene group
- sheet silicates
- silicates
- spinel
- sulfides
- temperature
- ultramafic composition
- United States
- xenoliths
- southwestern Pennsylvania
- picroilmenite
Latitude & Longitude
Abstract
The petrology, mineralogy, chemistry and geothermometry of Cr-rich and Cr-poor suites of megacrysts/inclusions from hypabyssal facies kimberlite are analysed. A magma-mixing model for the evolution of kimberlite melts within the low-velocity zone of the mantle is presented.
ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 69
Serial Issue: 1-2
Title: Magma-mixing in the low velocity zone; kimberlitic megacrysts from Fayette County, Pennsylvania
Affiliation: Univ. Tenn., Dep. Geol. Sci.,
Knoxville, TN,
United States
Pages: 16-29
Published: 198402
Text Language: English
Publisher: Mineralogical Society of America,
Washington, DC,
United States
Accession Number: 1986-019453
Categories: Igneous and metamorphic petrologyGeochemistry of rocks, soils, and sediments
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 6 tables
N39°43'00" - N40°07'60", W80°00'00" - W79°16'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1986
