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The Qiantang terrane is one of three main west-east-trending
terrane In geology Geology (from the γῆ, ''gē'' ("earth") and -λoγία, ''-logia'', ("study of", "discourse")) is a branch of concerned with both the liquid and , the of which it is composed, and the processes by which they change over time ...
s of the
Tibetan Plateau The Tibetan Plateau (, also known as the Qinghai–Tibet Plateau or the Qing–Zang Plateau () or as the Himalayan Plateau in India, is a vast elevated plateau In geology Geology (from the Ancient Greek γῆ, ''gē'' ("earth") and - ...
. During the Triassic, a southward-directed subduction along its northern margin resulted in the Jin-Shajing suture, the limit between it and the Songpan-Ganzi terrane. During the Jurassic, the
Lhasa terrane The Lhasa terrane is a terrane, or fragment of crustal material, sutured to the Eurasian Plate during the Cretaceous that forms present-day southern Tibet. It takes its name from the city of Lhasa in the Tibet Autonomous Region, China. The northe ...
merged with its southern margin along the
Bangong suture The Bangong suture zone is approximately 1200 km long and trends in an east–west orientation, and a key location in the central Tibet Tibet (; ; ) is a region in East Asia covering much of the Tibetan Plateau spanning about . I ...
. This suture, the closure of part of the
Tethys Ocean The Tethys Ocean ( el, Τηθύς ''Tēthús''), also called the Tethys Sea or the Neo-Tethys, was an ocean during much of the Mesozoic The Mesozoic Era ( ), also called the Age of Reptiles and the Age of Conifers, is the second-to-last era ...
, transformed the Qiantang terrane into a large-scale
anticline In structural geology, an anticline is a type of Fold (geology), fold that is an arch-like shape and has its oldest Bed (geology), beds at its core, whereas a syncline is the inverse of a anticline. A typical anticline is convex curve, conv ...

anticline
. The Qiantang terrane is now located at above sea level, but the timing of this uplift remains debated, with estimates ranging from the Pliocene-Pleistocene (3–5 ) to the Eocene (35 Mya) when the plateau was first denudated.


See also

Qiangtang terrane related (from south to north) *
Geology of the Himalaya The geology of the Himalayas is a record of the most dramatic and visible creations of the immense mountain range A mountain range is a series of mountains ranged in a line and connected by high ground. A mountain system or mountain belt ...
* Indus Suture Zone *
Transhimalaya The Transhimalaya (also spelled Trans-Himalaya), or "Gangdise – Nyenchen Tanglha range", is a mountain range in China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the List of countries and depe ...
, includes following: **
Lhasa terrane The Lhasa terrane is a terrane, or fragment of crustal material, sutured to the Eurasian Plate during the Cretaceous that forms present-day southern Tibet. It takes its name from the city of Lhasa in the Tibet Autonomous Region, China. The northe ...
**
Karakoram fault system The Karakoram fault is an oblique-slip fault system in the Himalayan region across India and Asia. The slip along the fault accommodates radial expansion of the Himalayan arc, northward indentation of the Pamir Mountains, and eastward lateral ext ...
*
High pressure metamorphic terranes along the Bangong-Nujiang Suture Zone High pressure terrane In geology Geology (from the γῆ, ''gē'' ("earth") and -λoγία, ''-logia'', ("study of", "discourse")) is a branch of concerned with both the liquid and , the of which it is composed, and the processes by whi ...
* Qiangtang terrane


References


Notes


Sources

* * {{geology-stub Geology of Tibet Historical tectonic plates Terranes