Fig. 5: Initial temperature conditions for simulations using the extended Boussinesq approximation. | Nature Communications

Fig. 5: Initial temperature conditions for simulations using the extended Boussinesq approximation.

From: Subduction initiation triggered the Caribbean large igneous province

Fig. 5: Initial temperature conditions for simulations using the extended Boussinesq approximation.The alternative text for this image may have been generated using AI.

Cross-section showing the initial the mantle temperature anomaly prescribed in simulations using the extended Boussinesq approximation. The mantle thermal anomaly, representing a deep sourced plume head, is initially prescribed underneath the old Caribbean plateau between 400 and 660 km depth. In this region, the adiabatic gradient is elevated following a gradient of 0.8 °C.km-1. GAA Greater Antilles Arc.

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