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- Title
REE partitioning between monazite and garnet: Implications for petrochronology.
- Authors
Hacker, Bradley; Kylander‐Clark, Andrew; Holder, Robert
- Abstract
Rare‐earth element and Y partitioning between garnet and monazite was measured in metamorphic rocks from western Norway to provide more confidence in tying monazite U/Th–Pb dates to P–T conditions recorded in garnet. A subset of samples has low‐Y garnet mantles and low‐Y monazite cores that gave Y‐partitioning temperatures similar to independently determined metamorphic temperatures. In combination with previously published data, these monazite–garnet pairs have temperature‐dependent partitioning of the HREE from Dy to Lu, and nonsystematic partitioning of the LREE from La–Gd. The temperature‐dependent partitioning must be considered when using HREE to assess which portions of garnet and monazite might have coexisted, but experiments are needed to place the dependence on a firm footing.
- Subjects
RARE earth metals; MONAZITE; GARNET; METAMORPHIC rocks; CONCRETE footings
- Publication
Journal of Metamorphic Geology, 2019, Vol 37, Issue 2, p227
- ISSN
0263-4929
- Publication type
Article
- DOI
10.1111/jmg.12458