2001
DOI: 10.1007/pl00007673
|View full text |Cite
|
Sign up to set email alerts
|

Zircon and monazite response to prograde metamorphism in the Reynolds Range, central Australia

Abstract: We report an extensive ®eld-based study of zircon and monazite in the metamorphic sequence of the Reynolds Range (central Australia), where greenschistto granulite-facies metamorphism is recorded over a continuous crustal section. Detailed cathodoluminescence and back-scattered electron imaging, supported by SHRIMP U±Pb dating, has revealed the dierent behaviours of zircon and monazite during metamorphism. Monazite ®rst recorded regional metamorphic ages (1576 5 Ma), at amphibolite-facies grade, at 600°C. Abun… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

28
347
1
9

Year Published

2012
2012
2018
2018

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 610 publications
(385 citation statements)
references
References 31 publications
28
347
1
9
Order By: Relevance
“…Similarly broad age ranges in granulite facies zircon population have been described in several studies from other terrains (e.g. Rubatto et al 2001;Diener et al 2013). Despite the scatter of dates in the granulite facies samples, a trend (Fig.…”
Section: Zircon Geochronology and Geochemistrysupporting
confidence: 80%
See 2 more Smart Citations
“…Similarly broad age ranges in granulite facies zircon population have been described in several studies from other terrains (e.g. Rubatto et al 2001;Diener et al 2013). Despite the scatter of dates in the granulite facies samples, a trend (Fig.…”
Section: Zircon Geochronology and Geochemistrysupporting
confidence: 80%
“…Previous studies have related such observations to the increasing degree of partial melting leading to resorption of detrital grains into the melt, which ultimately resulted in the growth of a thicker rim (e.g. Rubatto et al 2001;Kelsey et al 2008;Yakymchuk and Brown 2014). According to our observations, we suggest that the four types of metamorphic rim textures recognised in zircon (Fig.…”
Section: Zircon Texturessupporting
confidence: 72%
See 1 more Smart Citation
“…Exceptions to this would include rapidlyevolved 'fast' G-UHT terrains in which the lower-T chronometers (e.g., Ar-Ar mica chronology) yield ages close to those obtained from accessory minerals formed at or near peak conditions. Even in those cases, however, the definition of the age of the metamorphic peak may not be straightforward because of the complex behaviour of the key high-T accessory minerals, in particular zircon and monazite, and their propensity to form at different times and respond to a variety of reaction-, melt-and fluid-related processes in G-UHT rocks (e.g., Roberts and Finger, 1997;Rubatto et al, 2001;Harley et al, 2007;Kelsey et al, 2008;Taylor et al, 2014). Zircon and monazite have very low diffusivities for Pb and so, in the absence of later chemical reaction or deformation, can preserve G-UHT U-Pb ages.…”
Section: Constraining Temperature and Time In Uht Metamorphismmentioning
confidence: 99%
“…The observed temperature interval (i.e., 750-870°C) may be geologically meaningful as it corresponds to the transition from amphibolite to granulite facies during which breakdown of modal phases (64,65) releases Zr that can nucleate new zircon and produce overgrowths on preexisting grains. The anticorrelation between Ti and U suggests that the pore fluid from which the zircon overgrowth grew was becoming progressively depleted in U as epitaxial growth continued under prograde conditions.…”
Section: Discussionmentioning
confidence: 99%