摘要
20061719 An Zhisheng (Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075); Ai Li Imperfect Geologic Time Scale-Pending Future of the Quaternary (Journal of Stratigraphy, ISSN 0253-4959, CN 32-1187/P, 29(2), 2005, p.99-103, 2 illus. , 1 table, 16 refs. )geologic time scale, Quaternary Quaternary is the newest geological epoch characterized by the appearance of humans and the dominance of current biological species. It is comprised mainly of loose sediments. The Quaternary strata are the major environments where the humans reside. As a response to the new “International Stratigraphic Chart” suggested by ICS in the spring of 2004, this paper dealt with the perplexing Quaternary research history and its lower boundary definition over time, the attention paid by both academic and public to the Quaternary research through the progress achieved in the Geology, Earth System Science and Global Change study, the efforts made by INQUA as the organization of Quaternary research to retain the Quaternary as a formal unit and the current stage of negotiation: a final decision in Belgium in 2005, therefore calling on the Quaternary geologists in China to join in the force to support INQUA .
20061719 An Zhisheng (Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075); Ai Li Imperfect Geologic Time Scale-Pending Future of the Quaternary (Journal of Stratigraphy, ISSN 0253-4959, CN 32-1187/P, 29(2), 2005, p.99-103, 2 illus. , 1 table, 16 refs. )geologic time scale, Quaternary Quaternary is the newest geological epoch characterized by the appearance of humans and the dominance of current biological species. It is comprised mainly of loose sediments. The Quaternary strata are the major environments where the humans reside. As a response to the new “International Stratigraphic Chart” suggested by ICS in the spring of 2004, this paper dealt with the perplexing Quaternary research history and its lower boundary definition over time, the attention paid by both academic and public to the Quaternary research through the progress achieved in the Geology, Earth System Science and Global Change study, the efforts made by INQUA as the organization of Quaternary research to retain the Quaternary as a formal unit and the current stage of negotiation: a final decision in Belgium in 2005, therefore calling on the Quaternary geologists in China to join in the force to support INQUA .
