Which mechanism causes localized crustal thinning at continent-continent convergent boundaries after initial collision?

💡 Explanation

When continents collide, intense compression first causes crustal thickening; then, lateral extrusion of crustal material occurs facilitated by major strike-slip faults because it relieves compressive stress, leading to crustal thinning in some areas. Therefore lateral extrusion results, rather than rebound, delamination or rifting which arise from different processes.

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