荆江平原第四纪植物群发展初步研究  

A Preliminary Study of the Quaternary Vegeiationl Development in the Jingjiang Plain

作　　者：任振纪[1] 徐馨[2] 

机构地区：[1]河北地质学院 [2]南京大学

出　　处：《河北地质学院学报》1992年第4期448-456,共9页

摘　　要：根据荆江平原几个钻孔的孢粉分析结果,探讨本区第四纪植物群发展不同阶段,从其植被不同的发展阶段表明第四纪以来具有四次显著的冷暖变化。该区孢粉组合中常见到冷暖成份相混合的特征,这可能是本区在第四纪期间地壳处于下降阶段,各种孢粉成份均在这里沉积下来而造成的。Based on the results of the Quaternary sporo-pollen analysis from 5 drill boles in the Jingjiang plain, this paper has studied the Quaternary vegetational developmental stages and shows that Quaternary climalic altered with the cycle of colder to warmer or warmer to colder at four times, which might compare with the Quatemary glacial and interglacial epoch in China. The characteristics of mixture of colder and warmer composi- tions in the sporo-pollen assemblage probably reflect that the earch crust of Jingjiang plain was in the stage of settling and different sporo-pollen compositions were deposited in Quaternary.

关 键 词：第四纪 植物群 孢粉 

分 类 号：Q914.663[天文地球—古生物学与地层学]