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地球学报 1986
许杰笔石论文集简介Abstract: SomeofourviewsonthecorrelationofgraptoliteandsomeshellyfossilsequencefromthelatestOrdoviciantoearliestSi'urianandonthedivisionoftheOrdovician-Silurianboundaryhavebeenpresentedinthepastpapers(Wangetal.,1980,1983a,b;Laietal.,1982;Xuetal.,1983).Thepresentpaperwillfurtherinquireintotheseproblemsinthelightofbiostratigraphy,isotopeagedatingsedimenatryfaciesandpriliminarypaleomagneticresearchfromtheOrdovician-SilurianboundarysectionsoftheeasternYangzi(Yangtze)Gorges(pl.1-2).
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