Title: RECENT ADVANCE IN THE TRIASSIC CHRONOSTRATIGRAPHIC STUDY
Abstract: This paper presents a brief review of the recent advances in the Triassic chronostratigraphic study and its related aspects. The Subcommission on Triassic Stratigraphy (STS), ICS has formally voted through the scheme that the Triassic is divided into three series and seven stages in 1990's. So far only the Global Stratotype Section and Point (GSSP) for the base of the Triassic, however, has been formally defined. The GSSP for the Anisian-Ladinian boundary will be hopefully clarified soon. But the other five boundaries still need much work for the GSSP definition. With the improvement of the isotope dating techniques and methods, the Triassic timetable has been updated considerably and all the boundary ages between the stages have been redefined recently. The substage is not a main work of the STS, but the subdivision of the stages into substages is an important aspect in the Triassic chronostratigraphy, and the Lower and Middle Triassic especially have a good basis for substages. A terrestrial Triassic chronostratigraphical system based upon tetrapods has been suggested and to be improved in application. A scheme of three series and six stages for the marine Triassic of China and a scheme of three series and seven stages for the terrestrial Triassic of China have been proposed by the Chinese Committee of Stratigraphy in 2000, providing a proper basis for the chronostratigraphic study in China.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 5
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot