Tectonic rotations within the Bolivian Altiplano: Implications for the geodynamic evolution of the central Andes during the late Tertiary

Roperch, Pierrick; Fornari, Michel; Hérail, Gérard; Parraguez, Georgina V.

doi:10.1029/1999jb900311

Cited by 64 publications

(78 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…100 km stripe in the western border of the Altiplano-Puna, suggest the occurrence of a pre-late Miocene clockwise rotation of low magnitude. Contrasting with these results, Roperch et al (2000) showed that the lower Miocene Rondal volcanics at Lipez underwent about 40 • clockwise rotation (Table 4). These authors proposed that this large rotation is of local origin, related to tectonic activity in both the San Vicente Thrust and the Pululus fault zone, two tectonic features surrounding the Rondal locality.…”

Section: Discussioncontrasting

confidence: 78%

“…Paleomagnetically detected rotations show an overall consistency with this prediction (see compilations in Somoza et al, 1996;Randall, 1998;Beck, 1998;Prezzi and Alonso, 2002). However, the growing paleomagnetic database is showing a more complicated pattern, as dictated by variations in magnitude and timing of rotations (Somoza et al, 1996;Roperch et al, 2000;Somoza and Tomlinson, 2002;Rousse et al, 2003).…”

Section: Introductionsupporting

confidence: 53%

“…However, this kind of models also requires passive rotation of the forearc at these latitudes (e.g. Isacks, 1988;Kley, 1999) in contrast with paleomagnetic results from lower Miocene rocks in the forearc, which indicate negligible Neogene rotation (Roperch et al, 2000;Somoza and Tomlinson, 2002). These apparently conflictive observations remark the still scarce paleomagnetic and structural information to model the Neogene evolution of the Central Andes.…”

Section: Discussionmentioning

confidence: 88%

See 2 more Smart Citations

New paleomagnetic data from the northern Puna and western Cordillera Oriental, Argentina: a new insight on the timing of rotational deformation

Prezzi

Caffe

Somoza

2004

Journal of Geodynamics

View full text Add to dashboard Cite

Section: Discussioncontrasting

confidence: 78%

Section: Introductionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 88%

See 1 more Smart Citation

New paleomagnetic data from the northern Puna and western Cordillera Oriental, Argentina: a new insight on the timing of rotational deformation

Prezzi

Caffe

Somoza

2004

Journal of Geodynamics

View full text Add to dashboard Cite

“…4b). Different tectonic models have been proposed to account for the systematic pattern of rotations observed along the Central Andes (Somoza et al 1996;Beck 1998;Kley 1999;Arriagada et al 2000;Roperch et al 2000;McQuarrie 2002;Prezzi and Alonso 2002;Richards et al 2004).…”

Section: Paleomagnetic Polesmentioning

confidence: 99%

Reinterpretation of the Ordovician rotations in NW Argentina and Northern Chile: a consequence of the Precordillera collision?

Spagnuolo

Rapalini²,

Astini

2010

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

Early Paleozoic paleomagnetic data from NW Argentina and Northern Chile have shown large systematic rotations within two domains: one composed of the Western Puna that yields very large (up to 80°) counterclockwise rotations, and the other formed by the Famatina Ranges and the Eastern Puna that shows (*40°) clockwise rotations around vertical axes. In several locations, lack of significant rotations in younger rocks constrains this kinematic pattern to have occurred during the Paleozoic. Previous tectonic models have explained these rotations as indicative of rigid-body rotations of large para-autochthonous crustal blocks or terranes. A different but simple tectonic model that accounts for this pattern is presented in which rotations are associated to crustal shortening and tectonic escape due to the collision of the allochthonous terrane of Precordillera in the Late Ordovician. This collision should have generated dextral shear zones in the back arc region of the convergent SW Gondwana margin, where systematic domino-like clockwise rotations of small crustal blocks accommodate crustal shortening. The Western Puna block, bordering the Precordillera terrane to the north, might have rotated counterclockwise as an independent microplate due to tectonic escape processes, in a fashion similar to the present-day relationship between the Anatolia block and the Arabian microplate.

show abstract

“…Only one Neogene sampled zone in the Altiplano and one Paleogene sampled area in the Puna (Prezzi and Alonso, 2002) exhibit large rotation (~40°) ( Tables 1 and 2). Roperch et al (2000) proposed that the large rotation showed by Lower Miocene Rondal volcanics reflects just local conditions, related to activity in both the San Vicente thrust and the Pululus fault zone, two tectonic features surrounding the Rondal locality. Prezzi and Alonso (2002) sampled a narrow stripe (~1.5 km wide and 6 km long) of the Salta Group (Cretaceous-Eocene) (Marquillas et al, 1993), which is longitudinally bounded by two faults (Alonso, 1986), suggesting that the large rotation detected is of local origin.…”

Section: Paleomagnetic Datamentioning

confidence: 99%

The Southern Central Andes vertical axis tectonic rotations: relations with the deformation pattern

Prezzi

Llanos

2012

andgeo

View full text Add to dashboard Cite

ABSTRACT. Along the Central Andes a pattern of vertical axis tectonic rotations has been paleomagnetically identified. Such rotations are counterclockwise north of Arica Deflection (~19°S) and clockwise to the south. Different hypothesis and models have been proposed to explain the Central Andean Rotation Pattern (CARP). However, the CARP is a subject of ongoing debate. Recently, the quantity, quality, and geographic distribution of paleomagnetic data have expanded greatly. Such expansion has been accompanied by an increase in the knowledge of the deformation periods in the Andes, allowing a more detailed analysis of the temporal and spatial distribution of the detected rotations. We compiled and analyzed the available Cenozoic paleomagnetic data for the region extending between 19° and 27.5°S. The results suggest the possible existence of different rotational domains with distinct characteristics. We propose that in the Southern Central Andes, a close correlation would exist between the style and the temporal and spatial pattern of deformation and the amount of recorded vertical axis rotations. However, in order to further investigate such relationship, new paleomagnetic studies are necessary, particularly in the Eastern Cordillera domain, in Paleogene rocks cropping out in the Altiplano-Puna and in Neogene rocks of the forearc.

show abstract

Tectonic rotations within the Bolivian Altiplano: Implications for the geodynamic evolution of the central Andes during the late Tertiary

Cited by 64 publications

References 44 publications

New paleomagnetic data from the northern Puna and western Cordillera Oriental, Argentina: a new insight on the timing of rotational deformation

New paleomagnetic data from the northern Puna and western Cordillera Oriental, Argentina: a new insight on the timing of rotational deformation

Reinterpretation of the Ordovician rotations in NW Argentina and Northern Chile: a consequence of the Precordillera collision?

The Southern Central Andes vertical axis tectonic rotations: relations with the deformation pattern

Contact Info

Product

Resources

About