Assembly of Pampia to the SW Gondwana margin: A case of strike-slip docking?

The geological evidences indicate that the terranes in Western China have been accreted by the Cretaceous. However, there is a great discrepancy in the paleomagnetic results of these terranes and Eurasia. The most plausible interpretation is that the collision between India and Eurasian, which started around the boundary of Cretaceous and Tertiary (about 65 Ma), resulted in the crustal shortening among the tectonic units. Based on the paleomagnetic results of the terranes in Western China, the amount of the crustal shortening between each terrane and Eurasia are calculated. The crustal shortenings between Eurasia and Junggar, Tarim, northern Lasha and southern Lasha are 655 km, 1 043 km, 1 265 km and 1 631 km, respectively. The paleomagnetic results of Tarim and Qaidam indicate that Altyn Taugh fault has experienced complicated tectonic activity. The shallow inclination phenomenon which have been observed in many paleomagnetic studies in Asia may be induced by the existence of long-term non-dipole field in the Tertiary.

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Paleogeographic and tectonic evolution of the Pampia Terrane in the Cambrian: New paleomagnetic constraints

Tectonophysics (2020)

Pablo R. Franceschinis Augusto E. Rapalini M. Escayola Constanza Rodríguez Piceda

Apparent polar wander

Clockwise

Geomagnetic pole

Baltica

10.1016/j.tecto.2020.228386

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Citations (13)

Middle Permian paleomagnetism of the Sydney Basin, Eastern Gondwana: Testing Pangea models and the timing of the end of the Kiaman Reverse Superchron

Tectonophysics (2017)

Mercedes E. Belica E. Tohver Sergei Pisarevsky Fred Jourdan Steven W. Denyszyn

10.1016/j.tecto.2016.12.029

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Citations (45)

Paleomagnetic investigation of the Neoproterozoic Gagwe lavas and Mbozi complex, Tanzania and the assembly of Gondwana

Precambrian Research (1995)

Joseph G. Meert

Rodinia

Supercontinent

Apparent polar wander

10.1016/0301-9268(95)00012-t

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Citations (212)

Paleomagnetism of the Acatlan terrane, southern Mexico: evidence for terrane rotation

Earth and Planetary Science Letters (1989)

Fang Wu Rob Van der Voo Roberto S. Molina Garza Dante J. Morán-Zenteno J. Urrutia‐Fucugauchi

10.1016/0012-821x(89)90089-7

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Brook street and Murihiku terranes of New Zealand in the context of a mobile South Pacific Gondwana margin

Journal of South American Earth Sciences (1994)

J. D. Bradshaw

10.1016/0895-9811(94)90018-3

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Life and death of a Cambrian–Ordovician basin: An Andean three-act play featuring Gondwana and the Arequipa-Antofalla terrane

Geological Society of America eBooks (2007)

Sven Egenhoff

Reconstruction of the facies architecture and geometries of the Cambrian–Ordovician succession in the Central Andes of southern Bolivia and northwestern Argentina reveals a tripartite basin history that closely corresponds to interpretations of regional plate tectonic movements. The analysis of basin deposits enabled tracing and timing of movements of the Arequipa-Antofalla terrane, which initiated, fed, and terminated a basin between the terrane and Gondwana during the early Paleozoic. Tectonic movements started in the Cambrian and led to the formation of an extensional basin. Stretching was more pronounced in southern Bolivia than in northwestern Argentina, resulting in widening of the basin to...

10.1130/2007.2423(26)

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Citations (27)