Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano

Philippe Rochat; Gérard Hérail; Patrice Baby; Georges Mascle

doi:10.1016/S1251-8050(99)80095-0

Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano

Translated title of the contribution: Crustal balance and control of the erosive and sedimentary processes on the Altiplano formation

Philippe Rochat, Gérard Hérail, Patrice Baby, Georges Mascle

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

23 Scopus citations

Abstract

The Bolivian Altiplano corresponds to a broad piggyback basin located between the crustal duplexes of the eastern cordillera (linked with the underthrusting of the Brasilian shield) and the westvergent crustal thrusts of the precordillera, and western cordillera. A mechanism of underplating associated with the crustal erosion of the Chilean margin could allow, assuming a local-type isostatic behaviour, the acquisition of the topography of the basin by filling. In such a context, it is the end of endoreic drainage which is responsible for the decrease of the sedimentary overload and of the consecutive minor uplift of the Altiplano during the Upper Pliocene.

Translated title of the contribution	Crustal balance and control of the erosive and sedimentary processes on the Altiplano formation
Original language	French
Pages (from-to)	189-195
Number of pages	7
Journal	Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volume	328
Issue number	3
DOIs	https://doi.org/10.1016/S1251-8050(99)80095-0
State	Published - Feb 1999
Externally published	Yes

Keywords

Altiplano
Central Andes
Crustal duplexes
Piggyback basin
Sedimentary overload erosion
Underplating

Access to Document

10.1016/S1251-8050(99)80095-0

Cite this

@article{42d94e66ac8e4ecb84be56280349b0e2,

title = "Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano",

abstract = "The Bolivian Altiplano corresponds to a broad piggyback basin located between the crustal duplexes of the eastern cordillera (linked with the underthrusting of the Brasilian shield) and the westvergent crustal thrusts of the precordillera, and western cordillera. A mechanism of underplating associated with the crustal erosion of the Chilean margin could allow, assuming a local-type isostatic behaviour, the acquisition of the topography of the basin by filling. In such a context, it is the end of endoreic drainage which is responsible for the decrease of the sedimentary overload and of the consecutive minor uplift of the Altiplano during the Upper Pliocene.",

keywords = "Altiplano, Central Andes, Crustal duplexes, Piggyback basin, Sedimentary overload erosion, Underplating",

author = "Philippe Rochat and G{\'e}rard H{\'e}rail and Patrice Baby and Georges Mascle",

year = "1999",

month = feb,

doi = "10.1016/S1251-8050(99)80095-0",

language = "Franc{\'e}s",

volume = "328",

pages = "189--195",

journal = "Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes",

issn = "1251-8050",

number = "3",

}

Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano. / Rochat, Philippe; Hérail, Gérard; Baby, Patrice et al.
In: Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, Vol. 328, No. 3, 02.1999, p. 189-195.

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

TY - JOUR

T1 - Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano

AU - Rochat, Philippe

AU - Hérail, Gérard

AU - Baby, Patrice

AU - Mascle, Georges

PY - 1999/2

Y1 - 1999/2

N2 - The Bolivian Altiplano corresponds to a broad piggyback basin located between the crustal duplexes of the eastern cordillera (linked with the underthrusting of the Brasilian shield) and the westvergent crustal thrusts of the precordillera, and western cordillera. A mechanism of underplating associated with the crustal erosion of the Chilean margin could allow, assuming a local-type isostatic behaviour, the acquisition of the topography of the basin by filling. In such a context, it is the end of endoreic drainage which is responsible for the decrease of the sedimentary overload and of the consecutive minor uplift of the Altiplano during the Upper Pliocene.

AB - The Bolivian Altiplano corresponds to a broad piggyback basin located between the crustal duplexes of the eastern cordillera (linked with the underthrusting of the Brasilian shield) and the westvergent crustal thrusts of the precordillera, and western cordillera. A mechanism of underplating associated with the crustal erosion of the Chilean margin could allow, assuming a local-type isostatic behaviour, the acquisition of the topography of the basin by filling. In such a context, it is the end of endoreic drainage which is responsible for the decrease of the sedimentary overload and of the consecutive minor uplift of the Altiplano during the Upper Pliocene.

KW - Altiplano

KW - Central Andes

KW - Crustal duplexes

KW - Piggyback basin

KW - Sedimentary overload erosion

KW - Underplating

UR - http://www.scopus.com/inward/record.url?scp=0033080847&partnerID=8YFLogxK

U2 - 10.1016/S1251-8050(99)80095-0

DO - 10.1016/S1251-8050(99)80095-0

M3 - Artículo

AN - SCOPUS:0033080847

SN - 1251-8050

VL - 328

SP - 189

EP - 195

JO - Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes

JF - Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes

IS - 3

ER -

Bilan crustal et controle de la dynamique erosive et sedimentaire sur les mecanismes de formation de l'Altiplano

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this