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GEOREF RECORD
Pegmatites in West Greenland
Hans Ramberg
Pegmatites in West Greenland
Bulletin of the Geological Society of America (February 1956) 67 (2): 185-213
Pegmatites in West Greenland
Bulletin of the Geological Society of America (February 1956) 67 (2): 185-213
Index Terms/Descriptors
Latitude & Longitude
Abstract
Numerous quartz-feldspar pegmatites occur in the gneisses and crystalline schists of West Greenland. Some of these pegmatites are volume-by-volume replacement bodies, others formed by slow growth in dilating fissures. The nondilation and the dilation pegmatites were emplaced by similar mechanism--viz., diffusion through the host rocks and through fissures. Field evidence is against bodily flow of pegmatite magma and crystallization from a stagnant magma. Tension joints and shear zones have commonly localized pegmatites, but other structural heterogeneities such as pre-pegmatitic dikes and inclusions in gneisses were also "sinks" for the diffusion currents of pegmatite-forming matter.
ISSN: 1050-9747
Coden: BUGMAF
Serial Title: Bulletin of the Geological Society of America
Serial Volume: 67
Serial Issue: 2
Title: Pegmatites in West Greenland
Author(s): Ramberg, Hans
Pages: 185-213
Published: 195602
Text Language: English
Publisher: Geological Society of America (GSA),
Boulder, CO,
United States
Accession Number: 1959-025153
Categories: Igneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
N60°00'00" - N84°00'00", W70°00'00" - W20°00'00"
Source Note: reprinted as Groenlands Geol. Undersoegelse Misc. Papers, 1956; summary, France Centre Natl. Recherche Sci., Colloque Internat. Petrographie, Nancy, Sept. 4-11, 1955, [pt. 12] 8 p., illus. [1955]; revised in French, Sciences Terre, no. hors ser., p. 25-36, illus., with discussion, Nancy, France, 1955.
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1959