Hard covered book titled  ASTROGEOLOGICAL EVENTS IN CHINA. by Xu Dao-Yi, Yan Zheng, Sun Yi-Yin, He Jin-Wen, Zhang Qin-Wen, and Chai Zhi-Fang. 1989 Geological Publishing House, Beijing, China, Scottish Academic Press, Edinburgh, 264 pages, Illustrated with numerous charts, graphs, and photographs, including several in color. Also has ISBN 0707305675

This book represents a landmark in the investigation of the event stratigraphy controversy. It covers a field of geology which is becoming as important to our understanding of the earth history as the theory of plate-tectonics.

In recent years, Chinese geologists have carried out a series of thorough and comprehensive research projects on several stratigraphic type sections located mainly in South China. Important data has been obtained on biostratigraphy, sedimentology, geochemistry, magnetostratighraphy and lithostratigraphy and the purpose of this book is to introduce this data and to review evidence that several major boundary events in the Phanerozoic are probably of extraterrestrial origin.

Chapters include:

• THE PRECAMBRIAN-CAMBRIAN BOUNDARY EVENT
• THE PERMIAN-TRIASSIC BOUNDARY EVENT
• THE CRETACEOUS-TERTIARY BOUNDARY EVENT
• OTHER POSSIBLE ASTROGEOLOGICAL EVENTS
• A BRIEF SUMMARY OF SOME LINES OF RESEARCH
• MASS EXTINCTION & ITS IMPLICATIONS
• SOME PROBLEMS RELATED TO THE CAUSATIVE AGENT

This book is in VG+ condition, pages are clean and intact, and the binding is tight.