摘要
在海南岛新发现了三处海滩岩露头。本文从岩石学、沉积学和地球化学等方面探讨了它们的成岩环境,结合^(11)C测年分析,估算出琼西北沿海地区4000多年来的平均构造沉降量大于0.5mm/a。
Three beachrock outcrops are discovered in Hainan Island. Their diagenetic environments are discussed according to the analysis of petrology, sed-imentology and geochemistry. Associated with ^(14)C dating, the mean tectonic subsi-dence rate (>0.5mm/a) is calculated for the northwest coastal area of Hainan Island since 4439 YBP.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
1992年第1期99-105,共7页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
海滩岩
成岩环境
构造沉降
海南岛
beachrock
diagenetic environment
tectonic subsidence
