Abstract
Dynamic earth models assimilate plate tectonic reconstructions into mantle convection models, and account for the influence of the geoid and the evolving paleobathymetry of the sea floor self-consistently. Although dynamic earth models are computed in the mantle frame, the integrated plate reconstruction-mantle convection system enables linkage between geologic observations obtained in a plate frame of reference and dynamic predictions in mantle frame of reference, which is essential for the sea-level studies. Since these models account for the most important factors controlling long-term sea-level change self-consistently, it is possible to speculate on the influence of the mantle on vertical motion of earth’s surface, and regional and global sea-level change, as well as relative importance of different factors of sea-level change since the Late Cretaceous.

In the first part of the talk, I will give an overview of current dynamic earth methodology, and some sea-level implications from global and regional modeling studies. In particular, I will demonstrate that mantle dynamics presents one of the major factors controlling widespread subsidence in the Cretaceous Interior Seaway of North America, contributing to creation of hydrocarbon-rich basins of Western North America. In addition, I will illustrate other mechanisms controlling dynamic subsidence of sedimentary basins, and speculate on relative importance of different mechanisms of long-term sea-level change.

In the second part of the talk, I will talk about future research directions on integrated studies of creation and evolution of sedimentary basins. In particular, I will discuss interesting regions emerging from global dynamic studies, and discuss potential for integration of data from various disciplines for improved understanding of creation and evolution of sedimentary basins. I will also try to point collaboration opportunities within the UTIG and the Jackson School.