Palaeomagnetic estimates of crustal shortening in the Himalayan thrusts and Zangbo suture

Besse, J.; Courtillot, Vincent; Pozzi, Jean-Pierre; Westphal, M.; Zhou, Yanan

doi:10.1038/311621a0

Cited by 264 publications

(182 citation statements)

References 17 publications

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“…part of the Eastern Transhimalaya magmatism was emplaced a short time before and during the earliest stages of the India-Eurasia collision, i.e. around 50 MA in this part of the suture zone according to the most recent estimates (BEssE et al, 1984;PATRIAT & ACHACHE, 1984). Thus, though directly related to subduction, this magmatism may represent a good indicator of the time of collision .…”

Section: Petrogenetic Commentsmentioning

confidence: 97%

Time relationships between magmatism, tectonics and metamorphism in three plutonic belts in Southern Tibet: new K-Ar data

et al. 1985

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Die drei plutonischen Gfirtel sind, im Siid-Tibet, yon Norden nach Sfiden, der Transhimalaya (oder Kangdese), der Nordhimalaya (oder Lhagoi Kangri) und der Hochhimalaya. 25 neue K/Ar-Datierungen an Mineralien und Gesamtgestein wurden friihen Werten hinzugefiigt und erlauben eine Pr~izisierung der chronologischen Beziehungen der verschiedenen magmatischen, tektonischen und metamorphen Ereignisse, die beiderseits der Indus-Tsangpo-Suturzone statffanden. 1 -Die Platznahme des gr6gten Tells des Transhimalayaplutons scheint im Eoz~in erfolgt zu sein, was eine enge Beziehung des magmatischen Ereignisses mit dem Finalstadium der Konvergenz Indiens und Eurasien vermuten l~igt. 2 -Im Siiden der Suturzone schwanken die Alterswerte im wesentlichen zwischen 11 und 15 Mia. Jahren. Das h6chste Alter erlaubt die Festlegung der unteren chronologischen Grenze der metamorphen Rekristallisation der pal~iozoischen Granitoide des Nordhimalayas; ein mittleres Alter k6nnte der unteren Grenze fiir die Platznahme der k~inozoischen Granitoide des Hochhimalayas und z. T. des Nordhimalayas entsprechen; das jfingste Alter k6nnte schlieglich die n6rdlichsten Granitoide des Nordhimalayasgiirtel kennzeichnen. Die groge Koh~irenz zwischen diesen Altersbestimmungen und den im Gel~nde gemessenen Werten legt nahe, dag die schwachen chronologischen Unterschiede signifikant sein k6nnen. 3 -Unsere Bestimmungen ergeben oft bedeutend jiingere Alter, als meistens ffir die gleichen magmatischen Ereignisse angegeben worden ist. Wie nahegelegt wurde, k6nnte diese Diskrepanz ein relativ sprites Kollidieren der Indischen und Eurasischen Platte im Ostlichen Tell der Sutur bedeuten. AbstractFrom North to South, the three plutonic belts in Southern Tibet are the Transhimalaya (or Kangdese), the North Himalaya (or Lhagoi Kangri) and the High Himalaya. 25

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Section: Petrogenetic Commentsmentioning

confidence: 97%

Time relationships between magmatism, tectonics and metamorphism in three plutonic belts in Southern Tibet: new K-Ar data

et al. 1985

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“…He also suggested that, between these two orogenic phases, relief may have been much lower than presently observed. Besse et al (1984) used paleomagnetic techniques to estimate that approximately 400 km of shortening has occurred within the Indian continental crust south of the Indus-Tsangpo suture since 50 Ma. Besse et al (1984) state that much of this shortening occurred by thrusting between 45 and 35 Ma, but it is not clear from their discussion to what extent these dates result from their analysis and to what extent they are an assumption.…”

Section: The Central Indian Ocean and The Himalayasmentioning

confidence: 99%

“…Besse et al (1984) used paleomagnetic techniques to estimate that approximately 400 km of shortening has occurred within the Indian continental crust south of the Indus-Tsangpo suture since 50 Ma. Besse et al (1984) state that much of this shortening occurred by thrusting between 45 and 35 Ma, but it is not clear from their discussion to what extent these dates result from their analysis and to what extent they are an assumption. A number of discussions of shortening mechanisms, such as that of Mattauer (1986) assume that southward thrusting, and thus presumably uplift, began in the upper Eocene.…”

Section: The Central Indian Ocean and The Himalayasmentioning

confidence: 99%

Himalayan Uplift, Sea Level, and the Record of Bengal Fan Sedimentation at the ODP Leg 116 Sites

Cochran¹

1990

Proceedings of the Ocean Drilling Program

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“…As the Indian subcontinent made harbor and began its collision with Asia, it possibly became the zoogeographic source for adapiforms, omomyids, and maybe also Artiodactyla, Perissodactyla, and Hyaenodontidae. Paleomagnetic and biostratigraphic data suggest that the collision between the Indian subcontinent and Asia began in the early Eocene (Allégre et al, 1984;Besse et al, 1984;Patriat and Achache, 1984;Robinson et al, 2000). However, the euprimate fossil record includes a holarctic distribution and basal diversification that already existed at the very beginning of the Eocene.…”

Section: Euprimate Divergence and Asian Originsmentioning

confidence: 99%

A clue to the Asian origin of euprimates

Wang

et al. 2005

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Competing hypotheses maintain that euprimates originated in Africa, the Indian subcontinent, or East Asia, although the earliest unequivocally identified euprimates have been recorded mainly from Europe and North America. Recently we reported the discovery of Teilhardina asiatica from the earliest Eocene of China. This discovery constitutes the oldest unambiguous euprimate from Asia, and represents the most primitive known omomyid. It suggests that European and North American omomyids were probably rooted in Asia, and casts new light on the Asian-origin hypothesis of euprimates. The possibility of finding morphologically more generalized euprimates (or proto-euprimates) in southern China cannot be dismissed.

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Palaeomagnetic estimates of crustal shortening in the Himalayan thrusts and Zangbo suture

Cited by 264 publications

References 17 publications

Time relationships between magmatism, tectonics and metamorphism in three plutonic belts in Southern Tibet: new K-Ar data

Time relationships between magmatism, tectonics and metamorphism in three plutonic belts in Southern Tibet: new K-Ar data

Himalayan Uplift, Sea Level, and the Record of Bengal Fan Sedimentation at the ODP Leg 116 Sites

A clue to the Asian origin of euprimates

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