U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia): Tectonic setting and regional correlations

Sebastián Zapata; Agustín Cardona; Carlos Jaramillo; Víctor Valencia; Jeff Vervoort

doi:10.18273/revbol.v38n2-2016001

U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia): Tectonic setting and regional correlations

Sebastián Zapata, Agustín Cardona, Carlos Jaramillo, Víctor Valencia, Jeff Vervoort

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

24 Scopus citations

Abstract

New field data, geochemical analyses and zircon U-Pb LA-ICP MS data were obtained on plutonic and volcanic rocks of the Mocoa Batholith and Saldaña Formation in southern Colombia Putumayo region. Results suggest that the plutonic and volcanic activities are closely related to a common magmatic history. This volcano-plutonic association presents a well-defined LILE and LREE enrichment and negative Nb and Ti negative anomalies characteristic of continental magmatic arcs. Volcanic and plutonic rocks crystallized between 180-186 Ma as revealed by U-Pb zircon geochronology. The magmatic activity is temporally and chemically correlatable with other magmatic arc exposures in Colombia and Ecuador. These units may represent the remnants of a single belt which includes several units from 4°N in Colombia and 5°S in Ecuador. This arc is related to the widespread Jurassic continental magmatic arc setting that characterized the continental margins of the Americas after Pangea break-up.

Original language	English (US)
Pages (from-to)	21-38
Number of pages	18
Journal	Boletin de Geologia
Volume	38
Issue number	2
DOIs	https://doi.org/10.18273/revbol.v38n2-2016001
State	Published - 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Earth and Planetary Sciences

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10.18273/revbol.v38n2-2016001

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title = "U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia): Tectonic setting and regional correlations",

abstract = "New field data, geochemical analyses and zircon U-Pb LA-ICP MS data were obtained on plutonic and volcanic rocks of the Mocoa Batholith and Salda{\~n}a Formation in southern Colombia Putumayo region. Results suggest that the plutonic and volcanic activities are closely related to a common magmatic history. This volcano-plutonic association presents a well-defined LILE and LREE enrichment and negative Nb and Ti negative anomalies characteristic of continental magmatic arcs. Volcanic and plutonic rocks crystallized between 180-186 Ma as revealed by U-Pb zircon geochronology. The magmatic activity is temporally and chemically correlatable with other magmatic arc exposures in Colombia and Ecuador. These units may represent the remnants of a single belt which includes several units from 4°N in Colombia and 5°S in Ecuador. This arc is related to the widespread Jurassic continental magmatic arc setting that characterized the continental margins of the Americas after Pangea break-up.",

author = "Sebasti{\'a}n Zapata and Agust{\'i}n Cardona and Carlos Jaramillo and V{\'i}ctor Valencia and Jeff Vervoort",

year = "2016",

doi = "10.18273/revbol.v38n2-2016001",

language = "English (US)",

volume = "38",

pages = "21--38",

journal = "Boletin de Geologia",

issn = "0120-0283",

publisher = "Universidad Industrial de Santander",

number = "2",

}

U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia): Tectonic setting and regional correlations. / Zapata, Sebastián; Cardona, Agustín; Jaramillo, Carlos et al.
In: Boletin de Geologia, Vol. 38, No. 2, 2016, p. 21-38.

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

TY - JOUR

T1 - U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia)

T2 - Tectonic setting and regional correlations

AU - Zapata, Sebastián

AU - Cardona, Agustín

AU - Jaramillo, Carlos

AU - Valencia, Víctor

AU - Vervoort, Jeff

PY - 2016

Y1 - 2016

N2 - New field data, geochemical analyses and zircon U-Pb LA-ICP MS data were obtained on plutonic and volcanic rocks of the Mocoa Batholith and Saldaña Formation in southern Colombia Putumayo region. Results suggest that the plutonic and volcanic activities are closely related to a common magmatic history. This volcano-plutonic association presents a well-defined LILE and LREE enrichment and negative Nb and Ti negative anomalies characteristic of continental magmatic arcs. Volcanic and plutonic rocks crystallized between 180-186 Ma as revealed by U-Pb zircon geochronology. The magmatic activity is temporally and chemically correlatable with other magmatic arc exposures in Colombia and Ecuador. These units may represent the remnants of a single belt which includes several units from 4°N in Colombia and 5°S in Ecuador. This arc is related to the widespread Jurassic continental magmatic arc setting that characterized the continental margins of the Americas after Pangea break-up.

AB - New field data, geochemical analyses and zircon U-Pb LA-ICP MS data were obtained on plutonic and volcanic rocks of the Mocoa Batholith and Saldaña Formation in southern Colombia Putumayo region. Results suggest that the plutonic and volcanic activities are closely related to a common magmatic history. This volcano-plutonic association presents a well-defined LILE and LREE enrichment and negative Nb and Ti negative anomalies characteristic of continental magmatic arcs. Volcanic and plutonic rocks crystallized between 180-186 Ma as revealed by U-Pb zircon geochronology. The magmatic activity is temporally and chemically correlatable with other magmatic arc exposures in Colombia and Ecuador. These units may represent the remnants of a single belt which includes several units from 4°N in Colombia and 5°S in Ecuador. This arc is related to the widespread Jurassic continental magmatic arc setting that characterized the continental margins of the Americas after Pangea break-up.

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U-Pb LA-ICP-MS geochronology and geochemistry of jurassic volcanic and plutonic rocks from the Putumayo region (southern Colombia): Tectonic setting and regional correlations

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