Session Outline
| Solid Earth Sciences (S) | ||||
|---|---|---|---|---|
| Session Sub-category | Geology (GL) | |||
| Session ID | S-GL24 | |||
| Title | Crustal evolution in collision zones and its impacts on Earth's habitability | |||
| Short Title | Crustal evolution in collision zones | |||
| Main Convener | Name | Di-Cheng Zhu | ||
| Affiliation | China University of Geosciences Beijing | |||
| Co-Convener 1 | Name | Rui Wang | ||
| Affiliation | China University of Geosciences Beijing | |||
| Co-Convener 2 | Name | Qing Wang | ||
| Affiliation | China University of Geosciences Beijing | |||
| Co-Convener 3 | Name | Peter A. Cawood | ||
| Affiliation | Monash University | |||
| Co-Convener 4 | Name | Roberto F Weinberg | ||
| Affiliation | School of Earth, Atmosphere and Environment, Monash University | |||
| Session Language | E | |||
| Scope |
When two continents converge, the intervening oceanic basin is progressively consumed, ultimately leading to continental collision. Collision zones witness a succession of deep processes that impact Earth's solid and surficial reservoirs. Deep processes within the crust and mantle of the collision zone shape Earth's habitability through three linked mechanisms: (1) They induce mantle- and crust-derived magmas to drive the growth, reworking, and compositional maturation of the continental crust, constructing a stable physical platform that controls climate, ocean circulation and supports the evolution of life. (2) They facilitate the decomposition of copper-rich sulfide and lithium-rich biotite, releasing metallogenic elements that are then transported and enriched by fluids to form ore deposits, providing indispensable mineral resources for the development of civilizations. (3) They cause the dehydration and decomposition of hornblende and biotite, releasing volatiles (CHNOPS) that act as a climate-regulating valve, maintaining a habitable environment across the Earth's surface through the water-carbon-sulfur cycles. To understand the impact of crustal evolution in collision zones on Earth's habitability, address fundamental questions concerning linked processes within the Earth system, including future research directions, and promote interdisciplinary integration, this session welcomes submissions on, but not limited to, the following aspects: mantle evolution and continental crust formation in collision zones, volatile cycling and metallogenic effects in collision zones, deep C-S-H2O cycling and environmental impacts in collision zones, metamorphic anatexis and climate responses in collision zones, and the dynamics of crustal evolution in collision zones.
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| Session Format | Orals and Posters session | |||