My research addresses fundamental questions about the response of coral reefs and reef islands to environmental and climatic change, and the geomorphologic processes that control the evolution of tropical coastal and marine sedimentary environments. Key areas of current research are aimed at (1) improving understanding of rates and styles of coral reef growth, with a specific focus on terrestrial sediment-influenced nearshore environments; (2) on better understanding the timing of reef island development and on the sedimentary links between reefs and reef islands; and (3) on quantfiying rates of coral reef and marine carbonate production. Our group work across both the Indo-Pacific and Caribbean reef-building regions.