Main Question or Discussion Point
Both an asteroid impact in the Gulf of Mexico and an extensive volcanic event resulting in the formation of the Deccan Traps on the Indian subcontinent are thought to have caused the K/T extinction some 66 million years ago. The timing of both events are extremely close. It has also been suggested that another asteroid impact resulting in the "Shiva crater" might have triggered the volcanic eruptions. Is it possible that there might have been multiple asteroid impacts around the globe, and has iridium been found in the K/T boundary layers at the Deccan Traps?