Slab detachment
In
The uncritical use of the slab-detachment model to explain disparate observations of magmatism, uplift and exhumation in continental collision zones has been criticised.[3][4]
Slab tears
Detachment initiates at a particular point on the slab and will then propagate laterally along the descending slab, forming a slab tear. The propagation of the detachment will be accompanied by lateral migration of both the associated uplift and the magmatism.[5] Such laterally propagating tears have been recognised from several collision zones, such as the Hindu Kush part of the Himalayan Belt.[6] The Tertiary magmatism in the Alps observed along the Insubric Line has been argued to result from a rapidly propagating slab tear following continental collision and the initiation of slab breakoff.[7]
References
Further reading
- Gerya, Taras V.; Yuen, David A.; Maresch, Walter V. (September 2004). "Thermomechanical modelling of slab detachment". Earth and Planetary Science Letters. 226 (1–2): 101–116. .
- Duretz, T.; Schmalholz, S. M.; Gerya, T. V. (2012). "Dynamics of slab detachment" (PDF). Geochemistry, Geophysics, Geosystems. 13 (3): n/a. S2CID 134158189.
- Duretz, Thibault; Gerya, Taras V.; May, Dave A. (April 2011). "Numerical modelling of spontaneous slab breakoff and subsequent topographic response". Tectonophysics. 502 (1–2): 244–256. .
- Kohn, Matthew J.; Parkinson, Christopher D. (1 July 2002). "Petrologic case for Eocene slab breakoff during the Indo-Asian collision". Geology. 30 (7): 591–594. .
- Ferrari, Luca (2004). "Slab detachment control on mafic volcanic pulse and mantle heterogeneity in central Mexico". Geology. 32 (1): 77. doi:10.1130/G19887.1.
- Altunkaynak, Şafak (1 January 2007). "Collision‐Driven Slab Breakoff Magmatism in Northwestern Anatolia, Turkey". The Journal of Geology. 115 (1): 63–82. S2CID 140584465.
- Lee, Hao-Yang; Chung, Sun-Lin; Lo, Ching-Hua; Ji, Jianqing; Lee, Tung-Yi; Qian, Qing; Zhang, Qi (1 November 2009). "Eocene Neotethyan slab breakoff in southern Tibet inferred from the Linzizong volcanic record". Tectonophysics. 477 (1): 20–35. .