Abstract
The Purbeck beds in Dorset, the Tuchengzi Formation in western Liaoning Liaoning Province or the Houcheng Formation in northern Hebei Province are non-marine Jurassic/Cretaceous (J/K) boundary sequences. A Czech-China Inter-Governmental S&T Cooperation Project has been carried out to search for the non-marine J/K boundary in northern China and making international correlation with the Purbeck beds in southern England. The combination of palaeomagnetism and biostratigraphy in northern China and southern England localities proves that these distant places had similar climatic conditions and the same fauna during the Late Jurassic and Early Cretaceous. A preliminary joint research has shown a fruitful result in searching for the non-marine J/K boundary in northern China.
Highlights
A joint study of the Jurassic/Cretaceous (J/K) boundary sections in northern China [1] and Dorset, southwestern England [2] [3] began in the year 2017
A Czech-China Inter-Governmental S&T Cooperation Project has been carried out to search for the non-marine J/K boundary in northern China and making international correlation with the Purbeck beds in southern England
The combination of palaeomagnetism and biostratigraphy in northern China and southern England localities proves that these distant places had similar climatic conditions and the same fauna during the Late Jurassic and Early Cretaceous
Summary
A joint study of the Jurassic/Cretaceous (J/K) boundary sections in northern China [1] and Dorset, southwestern England [2] [3] began in the year 2017. The studied Dorset sites are on the Isle of Portland and at Swanage. The first, the older, is Jurassic in age. The other section is the major cliff profile at Swanage, entirely in continental Purbeck sediments, of Tithonian to Berriasian age
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