摘要
应用数学分析方法并结合化学-生物地层学手段,对广西巴漆、谷闭、堵金等3个中-上泥盆统剖面进行了系统的化学元素分析测试数据的数值旋回模拟。分析结果表明:能反映一定区域环境意义的相关元素的组合是客观稳定的;数值分析可在地层剖面上揭示出稳定、清晰的波动旋回;这些旋回可以将牙形石谱系带进行更精细的带内划分,并且可在不同的剖面间进行牙形石谱系带内旋回与旋回之间的对比,提高了牙形石谱系带内地层划分对比的精度和分辨率。
Combining mathematical analysis with the approach of chemo-biostratigraphy,the authors concentrated on numerical simulation of chemical cycle in the Upper-Mid Devonian sections at Baqi,Gubi and Dujin,Guangxi.The results are as follows：The relevant elemental combinations reflecting certain regional environmental changes are steady and clear;numerical analysis at these stratum sections shows the steady and clear chemical cycles,with which more refined subdivision in a conodont phylogenetic biostratigraphic zonation and cycle to cycle comparison between different sections can be made.Therefore it improves the resolution and precision of subdivision and correlation.
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第4期563-570,共8页
Acta Scientiarum Naturalium Universitatis Pekinensis
关键词
高分辨率
化学-生物地层学
数值旋回模拟
广西
high resolution
chemo-biostratigraphy
numerical simulation of cycle
Guangxi
