The enormous concentration of marine vertebrates documented within the Pisco Formation is unique for Peru and South America and places this unit among the prime fossil Lagerstätten for Miocene to Pliocene marine mammals worldwide. In order to provide a robust stratigraphic framework for the fossil-bearing locality of Cerro Los Quesos, this study presents a 1:10,000 scale geological map covering an area of about 21 km2, a detailed measured section spanning 290 m of strata, and a refined chronostratigraphy for the studied succession well constrained by diatom biostratigraphy and high-resolution40Ar/39Ar isotopic dating of three interbedded ash layers. Within the apparently monotonous, diatomite-dominated sedimentary section, the Pisco Formation has been subdivided into six local members, with stratigraphic control over the different outcrops facilitated by the establishment of a detailed marker bed stratigraphy based on 15 readily distinguishable sediment layers of different nature.

Di Celma, C., Malinverno, E., Cantalamessa, G., Gioncada, A., Bosio, G., Villa, I., et al. (2016). Stratigraphic framework of the late Miocene Pisco Formation at Cerro Los Quesos (Ica Desert, Peru). JOURNAL OF MAPS, 12(5), 1020-1028 [10.1080/17445647.2015.1115783].

Stratigraphic framework of the late Miocene Pisco Formation at Cerro Los Quesos (Ica Desert, Peru)

MALINVERNO, ELISA
Secondo
;
BOSIO, GIULIA;VILLA, IGOR MARIA;
2016

Abstract

The enormous concentration of marine vertebrates documented within the Pisco Formation is unique for Peru and South America and places this unit among the prime fossil Lagerstätten for Miocene to Pliocene marine mammals worldwide. In order to provide a robust stratigraphic framework for the fossil-bearing locality of Cerro Los Quesos, this study presents a 1:10,000 scale geological map covering an area of about 21 km2, a detailed measured section spanning 290 m of strata, and a refined chronostratigraphy for the studied succession well constrained by diatom biostratigraphy and high-resolution40Ar/39Ar isotopic dating of three interbedded ash layers. Within the apparently monotonous, diatomite-dominated sedimentary section, the Pisco Formation has been subdivided into six local members, with stratigraphic control over the different outcrops facilitated by the establishment of a detailed marker bed stratigraphy based on 15 readily distinguishable sediment layers of different nature.
Articolo in rivista - Articolo scientifico
40; Ar/; 39; Ar isotopic dating; Cerro Los Quesos; diatom biostratigraphy; late Miocene; Pisco formation; stratigraphy;
40Ar/39Ar isotopic dating; Cerro Los Quesos; diatom biostratigraphy; late Miocene; Pisco formation; stratigraphy; Earth and Planetary Sciences (miscellaneous); Geography, Planning and Development
English
1020
1028
9
Di Celma, C., Malinverno, E., Cantalamessa, G., Gioncada, A., Bosio, G., Villa, I., et al. (2016). Stratigraphic framework of the late Miocene Pisco Formation at Cerro Los Quesos (Ica Desert, Peru). JOURNAL OF MAPS, 12(5), 1020-1028 [10.1080/17445647.2015.1115783].
Di Celma, C; Malinverno, E; Cantalamessa, G; Gioncada, A; Bosio, G; Villa, I; Gariboldi, K; Rustichelli, A; Pierantoni, P; Landini, W; Tinelli, C; Collareta, A; Bianucci, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/101782
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