摘要
本文对广州市西北郊沙水岗至金钱岭剖面的研究表明,沙水岗一带的地层连续.露头良好,含丰富的动、植物化石.按岩性特征将其划分为上泥盆统沙水岗组和下石炭统龙江组;依其植物化石特征划分出晚泥盆世晚期斜方薄皮木(Leptophloeum rhombicum)一奇异亚鳞木(Sublepidodenron mirable)一轮状钩蕨(Hamatophyton verticiilatum)组合带,以及早石炭世早期针羊齿(Rhodeopteridium)一奇异亚鳞木(Sublepidodendronmirable)一无锡始鳞木(Eolepidodendron wusihense)组合带.以较充分的证据,提出并论述了广州地区的陆相泥盆系—石炭系界线.
The stratigraphic section from Shashuigang to Jinqiangling in north-western suburb of Guangzhou city was investigated thoroughly.And it is foundthat the upper strata are well-exposed,continuous and rich in animal and plantfossils.According to the lithological features,two formations can be recognized.They are Shashuigang formation of upper Devonian and the Longjiang formation oflower Carboniferous.Also two assamblege zones can be classified based on thedistribution of plant fossils.They are the Leptophloeum rhombicum-Sublepidod-endron mirable-Hamatophyton verticillatum assamblege zone of upper Devonian andRhodeopteridium-Sublepidodendron mirable-Eolepidodendron wusihense assamblegezone of early lower Carboniferous.Finally,this paper defined the Devonian-Car-boniferous boundary of continental facies in Guangzhou area.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
1993年第1期111-116,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
界线
泥盆纪
石炭纪
广州市
northwest Suburbs of Guangzhou city
fossils of animals and plants
Devonian—Carboniferous boundary of continental fecies
