DEEP-TIME DIGITAL EARTH (DDE) PALEOGEOGRAPHY DATABASES AND VISUALIZATION WITH AN INITIAL APPLICATION TO THE EAST ASIA
An exploratory development of techniques is being applied to East Asia as a collaboration among computer-engineers, plate-modelers and stratigraphers in India (ONGC), China (Chengdu Univ. Tech., Chinese Acad. Geol. Sci.), USA (Purdue Univ., and Paleomap Project), Australia (GPlates visualization team) and Vietnam (Vietnam Nat. Univ.). Independent online lexicons with map and stratigraphic user-interfaces were developed for all formations in India and China, and partially for Thailand and Vietnam. A multi-database search system returns formations of a desired geologic stage or date from these 4 databases. With one-click, a user can plot the regional extent of all those formations on the plate reconstruction of that same age. The fillings of the formation polygons are either lithologic facies patterns or color-coded depositional environments.
A separate knowledge management system (beta version released in October) consists of an online paleogeographic encyclopedia that relies on crowdsourcing to identify, create, organize, store and share paleogeographic knowledge. It can facilitate knowledge discovery and innovation within the community and foster collaboration among community members. The management system tackles the static display issue of traditional paleogeographic maps by enabling the users to interact with maps dynamically (e.g., querying map attribute values) through GIS technology.
DDE welcomes collaborations with other national and international groups.