Potential resources of quartz and feldspar raw material in Sørland IV: Relationships between quartz, feldspar and mica chemistry and pegmatite type

Forkortet: The Sveconorwegian pegmatite fields of Froland and Herefoss is located at the western edge of the Bamble terrane in southern Norway. The field comprises different pegmatite types which can be roughly classified as follows: (1) PGr - pegmatitic granites, (2) GP - granite pegmatites, (3) NaP - Plagioclase-dominant granitic pegmatites, (4) ZoP - zoned granitic pegmatites, (5) KP - K-feldspar-dominant granitic pegmatites, (6) PD - muscovites pegmatite/granite dykes and (7) HP - zoned pegmatites related to the Herefoss pluton. Types (1) to (5) and (7) represent relative primitive pegmatites in respect to granitic differentation containing predominantly Fe phlogopite and Mg siderophyllite. Type (6) has an more evolved chemistry reflected by zinnwaldite.

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Available:
NGU-biblioteket
Series:
NGU-rapport
Series nr:
2005.075
Page number:
94 s.
ISSN:
0800-3416
Document type:
Rapport
Project:
Metamorphic refinement of quartz and K-feldspar, S-Norway
Project nr:
286100
Fylke:
Aust-Agder