Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate

Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to ne...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Breitkreuz, Christoph [verfasserIn] Helmdach, Friedrich-Franz Kohring, Rolf Mosbrugger, Volker

Format:	Artikel
Sprache:	Englisch

Erschienen:	1992

Schlagwörter:	Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian)

Anmerkung:	© Institut für Palaentologie, Universitat Erlangen 1992

Übergeordnetes Werk:	Enthalten in: Facies - Springer-Verlag, 1979, 26(1992), 1 vom: Dez., Seite 67-80
Übergeordnetes Werk:	volume:26 ; year:1992 ; number:1 ; month:12 ; pages:67-80

Links:	Volltext

DOI / URN:	10.1007/BF02539794

Katalog-ID:	OLC2075392714

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520			\|a Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous.
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allfields	10.1007/BF02539794 doi (DE-627)OLC2075392714 (DE-He213)BF02539794-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Breitkreuz, Christoph verfasserin aut Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Institut für Palaentologie, Universitat Erlangen 1992 Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian) Helmdach, Friedrich-Franz aut Kohring, Rolf aut Mosbrugger, Volker aut Enthalten in Facies Springer-Verlag, 1979 26(1992), 1 vom: Dez., Seite 67-80 (DE-627)130281867 (DE-600)569234-9 (DE-576)015852024 0172-9179 nnns volume:26 year:1992 number:1 month:12 pages:67-80 https://doi.org/10.1007/BF02539794 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_31 GBV_ILN_40 GBV_ILN_65 GBV_ILN_285 GBV_ILN_2002 GBV_ILN_2004 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4305 AR 26 1992 1 12 67-80
spelling	10.1007/BF02539794 doi (DE-627)OLC2075392714 (DE-He213)BF02539794-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Breitkreuz, Christoph verfasserin aut Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Institut für Palaentologie, Universitat Erlangen 1992 Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian) Helmdach, Friedrich-Franz aut Kohring, Rolf aut Mosbrugger, Volker aut Enthalten in Facies Springer-Verlag, 1979 26(1992), 1 vom: Dez., Seite 67-80 (DE-627)130281867 (DE-600)569234-9 (DE-576)015852024 0172-9179 nnns volume:26 year:1992 number:1 month:12 pages:67-80 https://doi.org/10.1007/BF02539794 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_31 GBV_ILN_40 GBV_ILN_65 GBV_ILN_285 GBV_ILN_2002 GBV_ILN_2004 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4305 AR 26 1992 1 12 67-80
allfields_unstemmed	10.1007/BF02539794 doi (DE-627)OLC2075392714 (DE-He213)BF02539794-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Breitkreuz, Christoph verfasserin aut Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Institut für Palaentologie, Universitat Erlangen 1992 Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian) Helmdach, Friedrich-Franz aut Kohring, Rolf aut Mosbrugger, Volker aut Enthalten in Facies Springer-Verlag, 1979 26(1992), 1 vom: Dez., Seite 67-80 (DE-627)130281867 (DE-600)569234-9 (DE-576)015852024 0172-9179 nnns volume:26 year:1992 number:1 month:12 pages:67-80 https://doi.org/10.1007/BF02539794 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_31 GBV_ILN_40 GBV_ILN_65 GBV_ILN_285 GBV_ILN_2002 GBV_ILN_2004 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4305 AR 26 1992 1 12 67-80
allfieldsGer	10.1007/BF02539794 doi (DE-627)OLC2075392714 (DE-He213)BF02539794-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Breitkreuz, Christoph verfasserin aut Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Institut für Palaentologie, Universitat Erlangen 1992 Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian) Helmdach, Friedrich-Franz aut Kohring, Rolf aut Mosbrugger, Volker aut Enthalten in Facies Springer-Verlag, 1979 26(1992), 1 vom: Dez., Seite 67-80 (DE-627)130281867 (DE-600)569234-9 (DE-576)015852024 0172-9179 nnns volume:26 year:1992 number:1 month:12 pages:67-80 https://doi.org/10.1007/BF02539794 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_31 GBV_ILN_40 GBV_ILN_65 GBV_ILN_285 GBV_ILN_2002 GBV_ILN_2004 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4305 AR 26 1992 1 12 67-80
allfieldsSound	10.1007/BF02539794 doi (DE-627)OLC2075392714 (DE-He213)BF02539794-p DE-627 ger DE-627 rakwb eng 550 VZ 13 ssgn Breitkreuz, Christoph verfasserin aut Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate 1992 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Institut für Palaentologie, Universitat Erlangen 1992 Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian) Helmdach, Friedrich-Franz aut Kohring, Rolf aut Mosbrugger, Volker aut Enthalten in Facies Springer-Verlag, 1979 26(1992), 1 vom: Dez., Seite 67-80 (DE-627)130281867 (DE-600)569234-9 (DE-576)015852024 0172-9179 nnns volume:26 year:1992 number:1 month:12 pages:67-80 https://doi.org/10.1007/BF02539794 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_31 GBV_ILN_40 GBV_ILN_65 GBV_ILN_285 GBV_ILN_2002 GBV_ILN_2004 GBV_ILN_2173 GBV_ILN_4012 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4305 AR 26 1992 1 12 67-80
language	English
source	Enthalten in Facies 26(1992), 1 vom: Dez., Seite 67-80 volume:26 year:1992 number:1 month:12 pages:67-80
sourceStr	Enthalten in Facies 26(1992), 1 vom: Dez., Seite 67-80 volume:26 year:1992 number:1 month:12 pages:67-80
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topic_facet	Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian)
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authorswithroles_txt_mv	Breitkreuz, Christoph @@aut@@ Helmdach, Friedrich-Franz @@aut@@ Kohring, Rolf @@aut@@ Mosbrugger, Volker @@aut@@
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author	Breitkreuz, Christoph
spellingShingle	Breitkreuz, Christoph ddc 550 ssgn 13 misc Alluvio. Limnic Sediments misc Ostracode Fauna misc Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) misc Paleoclimate misc Chilean Andes misc Late Carboniferous (To? Early Permian) Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate
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topic_title	550 VZ 13 ssgn Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate Alluvio. Limnic Sediments Ostracode Fauna Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) Paleoclimate Chilean Andes Late Carboniferous (To? Early Permian)
topic	ddc 550 ssgn 13 misc Alluvio. Limnic Sediments misc Ostracode Fauna misc Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) misc Paleoclimate misc Chilean Andes misc Late Carboniferous (To? Early Permian)
topic_unstemmed	ddc 550 ssgn 13 misc Alluvio. Limnic Sediments misc Ostracode Fauna misc Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) misc Paleoclimate misc Chilean Andes misc Late Carboniferous (To? Early Permian)
topic_browse	ddc 550 ssgn 13 misc Alluvio. Limnic Sediments misc Ostracode Fauna misc Flora (Sphenophytes, Ferns, Gymnosperms, Pteridophylls) misc Paleoclimate misc Chilean Andes misc Late Carboniferous (To? Early Permian)
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title	Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate
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title_full	Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate
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author_browse	Breitkreuz, Christoph Helmdach, Friedrich-Franz Kohring, Rolf Mosbrugger, Volker
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title_sort	late carboniferous intra-arc sediments in the north chilean andes: stratigraphy, paleogeography and paleoclimate
title_auth	Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate
abstract	Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. © Institut für Palaentologie, Universitat Erlangen 1992
abstractGer	Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. © Institut für Palaentologie, Universitat Erlangen 1992
abstract_unstemmed	Summary Thick terrestrial Late Carboniferous to Triassic volcanosedimentary successions, a prominent feature of the Chilean and Argentinian High Andes, were formed on the active continental margin of Gondwanaland. Their stratigraphic position and the paleogeographic and paleoclimatic relations to neighbouring successions are poorly defined. A more precise age has been obtained for alluviolimnic intra-arc sediments (Miembro Medio), which are intercalated in the Late Carboniferous-Triassic volcano-sedimentary successions in the Salar de Atacama area of northern Chile. The ostracodesCarbonita cf.pungens andParaparchites sp., which occur in the lower part of the Miembro Medio, are of Late Carboniferous, probably Westphalian age. The diverse taphoflora, which occurs in a higher stratigraphic level than the ostracodes, includes sphenophytes, ferns, gymnosperms and pteridophylls, for which we assume a late Westphalian-Early Permian age. Considering radiometric data of under-and overlying volcanic rocks, a Westphalian-Stephanian (to? Early Permian) age is inferred for the Miembro Medio. Fauna and flora indicate that warm-humid and seasonal climatic conditions existed during the deposition of the lower fossiliferous part of the Miembro Medio. This coincides with the sedimentary paleoclimatic indicators of the Miembro Medio and the climate which was assumed to have predominated in wide parts of the Central and Southern Andes during the Latest Carboniferous. © Institut für Palaentologie, Universitat Erlangen 1992
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title_short	Late Carboniferous intra-arc sediments in the north Chilean Andes: Stratigraphy, paleogeography and paleoclimate
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