Time Markers for the Evolution and Exhumation History of a Late Palaeozoic Paired Metamorphic Belt in North-Central Chile (34°-35°30'S)

A.P. Willner; S.N. Thomson; A. Kröner; J. Whartho; J.R. Wijbrans; F. Hervé

doi:10.1093/petrology/egi036

Time Markers for the Evolution and Exhumation History of a Late Palaeozoic Paired Metamorphic Belt in North-Central Chile (34°-35°30'S)

A.P. Willner, S.N. Thomson, A. Kröner, J. Whartho, J.R. Wijbrans, F. Hervé

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

A multi-method geochronological approach is applied to unravel the dynamics of a paired metamorphic belt in the Coastal Cordillera of central Chile. This is represented by high-pressure - low-temperature rocks of an accretionary prism (Western Series), and a low-pressure- high-temperature overprint in the retro-wedge with less deformed metagreywackes (Eastern Series) intruded by magmas of the coeval arc. A pervasive transposition foliation formed in metagreywackes and interlayered oceanic crust of the Western Series during basal accretion near metamorphic peak conditions (∼350-400°C, 7-11 kbar) at 292-319 Ma (

Original language	English
Pages (from-to)	1835-1858
Number of pages	24
Journal	Journal of Petrology
Volume	9
DOIs	https://doi.org/10.1093/petrology/egi036
Publication status	Published - 2005

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10.1093/petrology/egi036

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abstract = "A multi-method geochronological approach is applied to unravel the dynamics of a paired metamorphic belt in the Coastal Cordillera of central Chile. This is represented by high-pressure - low-temperature rocks of an accretionary prism (Western Series), and a low-pressure- high-temperature overprint in the retro-wedge with less deformed metagreywackes (Eastern Series) intruded by magmas of the coeval arc. A pervasive transposition foliation formed in metagreywackes and interlayered oceanic crust of the Western Series during basal accretion near metamorphic peak conditions (∼350-400°C, 7-11 kbar) at 292-319 Ma (",

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AU - Willner, A.P.

AU - Thomson, S.N.

AU - Kröner, A.

AU - Whartho, J.

AU - Wijbrans, J.R.

AU - Hervé, F.

PY - 2005

Y1 - 2005

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AB - A multi-method geochronological approach is applied to unravel the dynamics of a paired metamorphic belt in the Coastal Cordillera of central Chile. This is represented by high-pressure - low-temperature rocks of an accretionary prism (Western Series), and a low-pressure- high-temperature overprint in the retro-wedge with less deformed metagreywackes (Eastern Series) intruded by magmas of the coeval arc. A pervasive transposition foliation formed in metagreywackes and interlayered oceanic crust of the Western Series during basal accretion near metamorphic peak conditions (∼350-400°C, 7-11 kbar) at 292-319 Ma (

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VL - 9

SP - 1835

EP - 1858

JO - Journal of Petrology

JF - Journal of Petrology

ER -

Time Markers for the Evolution and Exhumation History of a Late Palaeozoic Paired Metamorphic Belt in North-Central Chile (34°-35°30'S)

Abstract

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