Figure 3.

Simulated effects of a collapse in oceanic productivity (so-called Strangelove ocean), CO₂ outgassing during the eruption of the Deccan Traps and an extraterrestrial bolide impact on atmospheric pCO₂ changes across the KTB. (a) Effects of volcanic CO₂ emissions over a period of 10 kyr (solid line), and 2 Myr (finely divided line), and the effect of a Strangelove ocean (broken line) on atmospheric pCO₂. (b) The atmospheric pCO₂ response arising from an instantaneous injection of 6,500 (solid line) or 13,000 Gt CO₂ (broken line) from a bolide impact. (Insets) The atmospheric pCO₂ response in each case for the first 20 kyr of each simulation.