Edad pérmica de sedimentación de las metaturbiditas del Complejo Duque de York, sur de Chile: Datos mediante U-Pb SHRIMP y palinología.

Fernando A. Sepúlveda; Sylvia Palma-Heldt; Francisco Hervé; C. Mark Fanning

Edad pérmica de sedimentación de las metaturbiditas del Complejo Duque de York, sur de Chile: Datos mediante U-Pb SHRIMP y palinología.

Translated title of the contribution: Permian depositional age of metaturbidites of the Duque de York Complex, southern Chile: U-Pb SHRIMP data and palynology

Fernando A. Sepúlveda, Sylvia Palma-Heldt, Francisco Hervé, C. Mark Fanning

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The Duque de York Complex (DYC) is part of the low grade metamorphic accretionary complexes of the pre-Andean Patagonian 'basement'. It is a sedimentary succession exposed along the western margin of southernmost South America. New U-Pb zircon ages and palynological data restrict the maximum depositional age of the DYC to the limit between the early Permian (Kungurian) and the middle Permian (Roadian). The palynological association recorded in the DYC, characterized mainly by Gymnospermopsida pollen, indicates a humid environment of forest with an undergrowth of ferns. Regional paleogeographic correlations point out that an interpretation of DYC as an autochthonous terrane cannot be discarded, contrasting with previous hypotheses which suggest an allochthonous character for this complex.

Translated title of the contribution	Permian depositional age of metaturbidites of the Duque de York Complex, southern Chile: U-Pb SHRIMP data and palynology
Original language	Spanish
Pages (from-to)	375-397
Number of pages	23
Journal	Andean Geology
Volume	37
Issue number	2
Publication status	Published - 2010

Cite this

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title = "Edad p{\'e}rmica de sedimentaci{\'o}n de las metaturbiditas del Complejo Duque de York, sur de Chile: Datos mediante U-Pb SHRIMP y palinolog{\'i}a.",

abstract = "The Duque de York Complex (DYC) is part of the low grade metamorphic accretionary complexes of the pre-Andean Patagonian 'basement'. It is a sedimentary succession exposed along the western margin of southernmost South America. New U-Pb zircon ages and palynological data restrict the maximum depositional age of the DYC to the limit between the early Permian (Kungurian) and the middle Permian (Roadian). The palynological association recorded in the DYC, characterized mainly by Gymnospermopsida pollen, indicates a humid environment of forest with an undergrowth of ferns. Regional paleogeographic correlations point out that an interpretation of DYC as an autochthonous terrane cannot be discarded, contrasting with previous hypotheses which suggest an allochthonous character for this complex.",

keywords = "Chile, Duque de York Complex, Gondwana, Palynology, Terranes, U-Pb dating",

author = "Sep{\'u}lveda, {Fernando A.} and Sylvia Palma-Heldt and Francisco Herv{\'e} and {Mark Fanning}, C.",

year = "2010",

language = "Spanish",

volume = "37",

pages = "375--397",

journal = "Andean Geology",

issn = "0718-7092",

publisher = "Servicio Nacional de Geologia y Mineria",

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TY - JOUR

T1 - Edad pérmica de sedimentación de las metaturbiditas del Complejo Duque de York, sur de Chile

T2 - Datos mediante U-Pb SHRIMP y palinología.

AU - Sepúlveda, Fernando A.

AU - Palma-Heldt, Sylvia

AU - Hervé, Francisco

AU - Mark Fanning, C.

PY - 2010

Y1 - 2010

N2 - The Duque de York Complex (DYC) is part of the low grade metamorphic accretionary complexes of the pre-Andean Patagonian 'basement'. It is a sedimentary succession exposed along the western margin of southernmost South America. New U-Pb zircon ages and palynological data restrict the maximum depositional age of the DYC to the limit between the early Permian (Kungurian) and the middle Permian (Roadian). The palynological association recorded in the DYC, characterized mainly by Gymnospermopsida pollen, indicates a humid environment of forest with an undergrowth of ferns. Regional paleogeographic correlations point out that an interpretation of DYC as an autochthonous terrane cannot be discarded, contrasting with previous hypotheses which suggest an allochthonous character for this complex.

AB - The Duque de York Complex (DYC) is part of the low grade metamorphic accretionary complexes of the pre-Andean Patagonian 'basement'. It is a sedimentary succession exposed along the western margin of southernmost South America. New U-Pb zircon ages and palynological data restrict the maximum depositional age of the DYC to the limit between the early Permian (Kungurian) and the middle Permian (Roadian). The palynological association recorded in the DYC, characterized mainly by Gymnospermopsida pollen, indicates a humid environment of forest with an undergrowth of ferns. Regional paleogeographic correlations point out that an interpretation of DYC as an autochthonous terrane cannot be discarded, contrasting with previous hypotheses which suggest an allochthonous character for this complex.

KW - Chile

KW - Duque de York Complex

KW - Gondwana

KW - Palynology

KW - Terranes

KW - U-Pb dating

UR - http://www.scopus.com/inward/record.url?scp=79955703643&partnerID=8YFLogxK

M3 - Article

SN - 0718-7092

VL - 37

SP - 375

EP - 397

JO - Andean Geology

JF - Andean Geology

IS - 2

ER -

Edad pérmica de sedimentación de las metaturbiditas del Complejo Duque de York, sur de Chile: Datos mediante U-Pb SHRIMP y palinología.

Abstract

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