Magmatism during continental collision, subduction, exhumation and mountain collapse in collisional orogenic belts and continental net growth: A perspective
Magmatism during continental collision, subduction, exhumation and mountain collapse in collisional orogenic belts and continental net growth: A perspective
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碰撞造山带大陆碰撞、俯冲、折返和山体塌陷过程中的岩浆作用和大陆净生长：一个视角
DOI：
10.1007/s11430-015-5102-x
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发表时间：
2015-05
影响因子：
5.7
通讯作者：
Niu YaoLing
中科院分区：
文献类型：
--
作者：
Song ShuGuang;Wang MengJue;Wang Cao;Niu YaoLing
地球上的大陆造山带可分为增生造山带和碰撞造山带。造山带岩浆作用发生在造山旋回的各个阶段，从大洋俯冲、大陆碰撞到造山塌陷。大陆碰撞需要先有大洋俯冲带的存在。一般认为，大陆深俯冲的前提条件是大洋俯冲及其在大陆碰撞过程中对相连的被动边缘大陆岩石圈的拖曳力。大陆俯冲和碰撞导致地壳增厚和抬升，但造山带内相关岩浆活动的形成时间取决于岩石圈的加热机制。增生造山带则没有强烈的大陆碰撞和深俯冲作用，没有大规模的地壳逆冲、增厚和隆升，也没有与大陆深俯冲作用有关的超高压榴辉岩相变质岩。尽管在大洋俯冲过程中弧壳可能显著增厚，但是否会产生同碰撞或后碰撞岩浆活动仍值得怀疑。在碰撞造山带中，由于大陆深俯冲和地壳显著增厚，超高压变质的洋壳和陆壳在折返过程中发生减压熔融，产生同碰撞岩浆作用。在造山带脱根和崩塌过程中，岩石圈伸展和软流圈地幔上涌导致碰撞后岩浆活动的发生，标志着一个造山旋回的结束。因此，造山带岩浆活动可以发生在大陆深俯冲、俯冲洋壳与陆壳剥离后的折返隆升和伸展塌陷过程中。从大陆碰撞到造山带的崩塌和侵蚀（造山旋回的结束）的时间跨度为50- 8500万年。碰撞造山带是认识大陆深俯冲、折返、隆升和造山塌陷的重要场所。碰撞造山带中的岩浆活动在大陆改造和净增长中起着重要作用。
Continental orogens on Earth can be classified into accretionary orogen and collisional orogen. Magmatism in orogens occurs in every periods of an orogenic cycle, from oceanic subduction, continental collision to orogenic collapse. Continental collision requires the existence of prior oceanic subduction zone. It is generally assumed that the prerequisite of continental deep subduction is oceanic subduction and its drag force to the connecting passive-margin continental lithosphere during continental collision. Continental subduction and collision lead to the thickening and uplift of crust, but the formation time of the related magmatism in orogens depends on the heating mechanism of lithosphere. The accretionary orogens, on the other hand, have no strong continental collision, deep subduction, no large scale of crustal thrusting, thickening and uplift, and no UHP eclogite-facies metamorphic rocks related to continental deep subduction. Even though arc crust could be significantly thickened during oceanic subduction, it is still doubtful that syn- or post-collisional magmatism would be generated. In collisional orogens, due to continental deep subduction and significant crustal thickening, the UHP metamorphosed oceanic and continental crusts will experience decompression melting during exhumation, generating syn-collisional magmatism. During the orogen unrooting and collapse, post-collisional magmatism develops in response to lithosphere extension and upwelling of asthenospheric mantle, marking the end of an orogenic cycle. Therefore, magmatism in orogens can occur during the continental deep subduction, exhumation and uplift after detachment of subducted oceanic crust from continental crust, and extensional collapse. The time span from continental collision to collapse and erosion of orogens (the end of orogenic cycle) is 50–85 Myr. Collisional orogens are the key sites for understanding continental deep subduction, exhumation, uplift and orogenic collapse. Magmatism in collisional orogens plays important roles in continental reworking and net growth.
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影响因子：
3.1
作者：
Shuguang Song;Lifei Zhang;J. Chen;J. Liou;Y. Niu
通讯作者：
Shuguang Song;Lifei Zhang;J. Chen;J. Liou;Y. Niu
DOI：
10.1127/0163-3171/2013/0008
发表时间：
2014-01
期刊：
--
影响因子：
--
作者：
H. D. Boorder
通讯作者：
H. D. Boorder
影响因子：
3.5
作者：
J. Liégeois;J. Navez;J. Hertogen;R. Black
通讯作者：
J. Liégeois;J. Navez;J. Hertogen;R. Black
影响因子：
3.9
作者：
Shuguang Song;Lifei Zhang;Y. Niu;L. Su;B. Song;Dunyi Liu
通讯作者：
Shuguang Song;Lifei Zhang;Y. Niu;L. Su;B. Song;Dunyi Liu
DOI：
10.1086/629406
发表时间：
1990-05
期刊：
The Journal of Geology
影响因子：
--
作者：
J. Rogers;J. K. Greenberg
通讯作者：
J. Rogers;J. K. Greenberg