Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology

Martim Afonso Ferreira de Sousa Chichorro

Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology

Martim Afonso Ferreira de Sousa Chichorro

DCT - Departamento de Ciências da Terra

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

In this preliminary study of provenance analysis, Neogene sandstones and conglomerates of the Alvalade Basin were sampled from sea cliffs in the vicinity of the Sines Cape (southwestern Portuguese coast). Detrital zircons were extracted by conventional methods of particle size separation including magnetism and heavy liquids. Detrital zircons were dated using the U–Pb method by laser ablation with inductively coupled plasma mass spectrometry (LA–ICP–MS). The U–Pb geochronology results indicate the following as potential sources for the samples: (1) Carboniferous greywackes of the Mira Formation (South Portuguese Zone) or the Upper Triassic sandstones of the Silves Formation (Alentejo Basin) for the zircons with pre-Permian ages; and (2) syenites from the Sines Massif for the zircons with Late Cretaceous ages. One sample includes a significant population of detrital zircons of Permian age whose source is unidentified as there are no source rocks of such age in the Alvalade Basin

Original language	Unknown
Title of host publication	STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy
Editors	R Rocha, J Pais, S Finney, JC Kullberg
Place of Publication	Heidelberg
Publisher	Springer International Publishing
Pages	707-710
ISBN (Print)	978-3-319-04363-0/978-3-319-04364-7
Publication status	Published - 1 Jan 2014

Publication series

Name	Springer Geology
Publisher	Springer International Publishing

Access to Document

http://link.springer.com/chapter/10.1007%2F978-3-319-04364-7_133

Cite this

Chichorro, M. A. F. D. S. (2014). Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology. In R. Rocha, J. Pais, S. Finney, & JC. Kullberg (Eds.), STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy (pp. 707-710). (Springer Geology). Springer International Publishing. http://link.springer.com/chapter/10.1007%2F978-3-319-04364-7_133

Chichorro, Martim Afonso Ferreira de Sousa. / Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology. STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy. editor / R Rocha ; J Pais ; S Finney ; JC Kullberg. Heidelberg : Springer International Publishing, 2014. pp. 707-710 (Springer Geology).

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title = "Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology",

abstract = "In this preliminary study of provenance analysis, Neogene sandstones and conglomerates of the Alvalade Basin were sampled from sea cliffs in the vicinity of the Sines Cape (southwestern Portuguese coast). Detrital zircons were extracted by conventional methods of particle size separation including magnetism and heavy liquids. Detrital zircons were dated using the U–Pb method by laser ablation with inductively coupled plasma mass spectrometry (LA–ICP–MS). The U–Pb geochronology results indicate the following as potential sources for the samples: (1) Carboniferous greywackes of the Mira Formation (South Portuguese Zone) or the Upper Triassic sandstones of the Silves Formation (Alentejo Basin) for the zircons with pre-Permian ages; and (2) syenites from the Sines Massif for the zircons with Late Cretaceous ages. One sample includes a significant population of detrital zircons of Permian age whose source is unidentified as there are no source rocks of such age in the Alvalade Basin",

keywords = "Sandstones and conglomerates, Provenance analysis, Plio–Pleistocene, Alvalade Basin",

author = "Chichorro, {Martim Afonso Ferreira de Sousa}",

year = "2014",

month = jan,

day = "1",

language = "Unknown",

isbn = "978-3-319-04363-0/978-3-319-04364-7",

series = "Springer Geology",

publisher = "Springer International Publishing",

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Chichorro, MAFDS 2014, Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology. in R Rocha, J Pais, S Finney & JC Kullberg (eds), STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy. Springer Geology, Springer International Publishing, Heidelberg, pp. 707-710. <http://link.springer.com/chapter/10.1007%2F978-3-319-04364-7_133>

Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology. / Chichorro, Martim Afonso Ferreira de Sousa.

STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy. ed. / R Rocha; J Pais; S Finney; JC Kullberg. Heidelberg : Springer International Publishing, 2014. p. 707-710 (Springer Geology).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

TY - CHAP

T1 - Sedimentary provenance of Neogene strata from the SW Portuguese Coast (Sines Cape): detrital zircon U-Pb geochronology

AU - Chichorro, Martim Afonso Ferreira de Sousa

PY - 2014/1/1

Y1 - 2014/1/1

N2 - In this preliminary study of provenance analysis, Neogene sandstones and conglomerates of the Alvalade Basin were sampled from sea cliffs in the vicinity of the Sines Cape (southwestern Portuguese coast). Detrital zircons were extracted by conventional methods of particle size separation including magnetism and heavy liquids. Detrital zircons were dated using the U–Pb method by laser ablation with inductively coupled plasma mass spectrometry (LA–ICP–MS). The U–Pb geochronology results indicate the following as potential sources for the samples: (1) Carboniferous greywackes of the Mira Formation (South Portuguese Zone) or the Upper Triassic sandstones of the Silves Formation (Alentejo Basin) for the zircons with pre-Permian ages; and (2) syenites from the Sines Massif for the zircons with Late Cretaceous ages. One sample includes a significant population of detrital zircons of Permian age whose source is unidentified as there are no source rocks of such age in the Alvalade Basin

AB - In this preliminary study of provenance analysis, Neogene sandstones and conglomerates of the Alvalade Basin were sampled from sea cliffs in the vicinity of the Sines Cape (southwestern Portuguese coast). Detrital zircons were extracted by conventional methods of particle size separation including magnetism and heavy liquids. Detrital zircons were dated using the U–Pb method by laser ablation with inductively coupled plasma mass spectrometry (LA–ICP–MS). The U–Pb geochronology results indicate the following as potential sources for the samples: (1) Carboniferous greywackes of the Mira Formation (South Portuguese Zone) or the Upper Triassic sandstones of the Silves Formation (Alentejo Basin) for the zircons with pre-Permian ages; and (2) syenites from the Sines Massif for the zircons with Late Cretaceous ages. One sample includes a significant population of detrital zircons of Permian age whose source is unidentified as there are no source rocks of such age in the Alvalade Basin

KW - Sandstones and conglomerates

KW - Provenance analysis

KW - Plio–Pleistocene

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BT - STRATI 2013: First International Congress on Stratigraphy: At the Cutting Edge of Stratigraphy

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A2 - Kullberg, JC

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CY - Heidelberg

ER -