摘要
本文阐述了宁绍平原泥炭层的分布规律、沉积特征、形成时代以及形成过程。并在综合分析的基础上,以泥炭层为主线,对全新世以来的海面变化过程和幅度进行了归纳和探讨。
Ning Shao coastal plain is situated in the Northeastern part of Zhe Jiang province of China, Where the peat resource is rich, It mainly distributs in lowland and is associated with paleo-lakes. Peat, clay and siltyclay are interbeded. The peat largely formed in reed-swamp envirnment. The ash content of it is relatively higher. Aceording to ^(14)C dating, the peat mainly formed in the period of 6000-3500 Y. B. P.The majority of underlying and overlying sediments of the peat respectively belong to marin facies and alluvial-pluvial facies. The peat mainly formed in the duration of regression.From the comprehensive analyses of peat-bearing strata, it could be concluded that the process and range of Holocene sea level changes: in the early Holocene the sea level raised rapidly; 7000-6500 Y. B. P was the period of high sea level when the sea level was 2-4 metres higher than the present; then the sea level declinde during slowly, its decline the sea level stopped about three times, when the peat boys forme widespreadly. In the late Holocene the sea level tended to steadiness and was gradually up to the present height, and the peat boys were dying away.
出处
《南京师大学报（自然科学版）》
CAS
CSCD
1991年第1期76-84,共9页
Journal of Nanjing Normal University(Natural Science Edition)
关键词
泥炭层
海面变化
沉积环境
peat stratum, seimentary environment, sea level change.
