From lecturer to associate professor China University Geosciences, Beijing, 1982-1987. Researcher Geolog. & Paleontological Institute University Tübingen, 1987-2000. Consultant BHP Mineral International, Hernden, 1988—1995, Collector's Edge, Inc., Golden, Colorado, 2000—2002.
President Assiduity Authenticity Achievement (American Automobile Association) Minerals International Company Ltd, Tuebingen, 1999. Guest professor China University Mining and Technology, since 2002. Consultant Shell International Exploration and Production Inc., since 2002.
- Co-author: Study of Sedimentary Environments and Coal Accumulation of the Late Paleozoic Coal-Measures in Yuxian, Henan Province, 1987, The Permian System: Stratigraphy, Paleogeography & Resources, 1998, Himalaya and Tibet, Mountain Roots to Mountain Tops, 1999. Contributor over 40 articles to professional journals.
Born October 3, 1954