Slab breakoff: a causal mechanism or pure convenience?

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（7）
• 页码范围: 456-461
• 页数: 6页
• 语种: 英文

摘要

The idea of lithosphere delamination has long been conceived as a mechanism to cause tectonic uplift,metamorphism and magmatism in active orogenic belts [1-3].Since the publication of the two seminal papers by Davies and yon Blanckenburg [4,5],the idea of slab breakoff has been more widely accepted over the last ～20 years as the favored mechanism to cause collision zone magmatism and exhumation of subduction-zone metamorphosed rocks.These two papers showed the physical probability of slab-breakoff during continental collision and illustrated possible geological consequences using the Alpine geology as an example.