Late Permian to Late Triassic Large Igneous Provinces: Timing, Eruptive Style and Paleoenvironmental Perturbations

The emplacement of the Siberian Traps, Central Atlantic Magmatic Province (CAMP) and Wrangellia have been linked to end-Permian, end-Triassic mass extinctions, Carnian Pluvial Episode (CPE), respectively. Exploring timing, eruptive styles, volatile degassing these Large Igneous Provinces (LIPs) is crucial understand their causal link catastrophic environmental crises that punctuated Triassic. In this study we review main characteristics LIPs, emphasizing common features differences, discussing aspects are still in debate. Estimates CO 2 budgets emissions from three LIPs based on Nb content little evolved basalts highlight early Traps CAMP high-Ti volcanics were quite -rich. On contrary, other probably emitted relatively low amounts , which reinforces possibility thermogenic reactions between sills sediments additional fundamental suppliers climate-modifying gases.