AN IMPORTANT DEVONIAN-CARBONIFEROUS BOUNDARY STRATOTYPE IN NERITIC FACIES OF YISHAN COUNTY, GUANGXI
AN IMPORTANT DEVONIAN-CARBONIFEROUS BOUNDARY STRATOTYPE IN NERITIC FACIES OF YISHAN COUNTY, GUANGXI出 版 物:《微体古生物学报》 (Acta Micropalaeontologica Sinica)
年 卷 期:1985年第1期
页 面:40-46页
学科分类:0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程]
主 题:Carboniferous sections evolutionary appearance margin thorough strata discussion visited Upper
摘 要: In 1979,the IUGS Working Group on the Devonian-Carboniferous boundary made an outstanding resolution that the Devonian-Carboniferous boundary should be chosen at the first appearance of the conodont Siphonodella sulcata within the evolutionary lineage from S. praesulcata to S. sulcata. Since then, the Working Group have visited several sections in different countries and discussed the attributes and detractions of each section. After thorough discussion and deliberation, the Working Group recommended four sections as condidates for the international Devonian-Carboniferous boundary stratotype, namely Hasselbachtal, Kija, Berchogur and Muhua, of these four the Muhua section has been ranked as the leading contender of the candidates.