【摘要】 石笋沉积的生长条带从剖面图式可分为两大类：一类没有明确的沉积旋回界面，难以按层计数，称为“生长纹理”；另一类具有确定的沉积旋回界面，可以按层计数，称为“生长层理”。石笋生长层理可以发展成为一类重要的断代工具。中国北方型微层的形成可能主要与干湿季变化明显的气候条件、以及富含有机质和碱性交换态离子的土壤类型密切相关。而南方型微层的形成可能主要与较长时间的降水和有机质淋滤以及盛夏高温少降水的配置有关。如果沉积物中某种要素对物源或水流通过路径的环境变化能够灵敏反应，并按一定的时间单元将这些变化记录下来，就能成为高分辨的气候—环境变化信息库更多还原

【Abstract】 Stalagmites have been used as high resolution climatic records since the annual lamination was discovered.Almost all stalagmites exhibit growth bands on their polishing sections. Growth bands can be divided into two classes:growth laminae showed by different color strips, and growth layer of calcite defined by horizontal divisions which are special material made interfaces.The stalagmite micro layer is one of the best means of chronological counting. A few of authors have interpreted why some stalagmites have laminated cycles under special climatic and geologic backgrounds.But no one knows why, even if from the same cave, some stalagmites have laminated cycles and others have not. It is clear that this situation can not be due to the causes of climate and geology. Soil, in fact, is another important dynamic fator for the formation of stalagmite lamination. It has been known, by the in situ analysis of second ionization mass spectrometry (SIMS), that the interface of the layer consists of organic matter and clay elements such as Al, Si and Fe which are directly from the covering soil.The soil leaching experiment shows that the soil which is abundant in organic matter, can supply a mass pulse which forms the layer interface after a rather long time of stopping washing, i.e.this kind of soil is responsible for the annual sedimentary cycle in a stalagmite due to an effect of drought, and for the sub layer, further, due to the interval of rains. In east China, the micro layers of stalagmites can be classified into the northern type and the southern type. The northern type such as samples from the Water Cave in Liaoning province, Shihua Cave and Yinhu Cave in Beijing city have very thin dark beddings that consist of organic matter (mainly humic acid and fulvic acid) and elements from clast,and rather thick bright layers that consist of calcite. The samples from Hulu Cave in Nanjing city are similar to the northern type.The southern type such as samples from Yaolin Cave in Zhejiang province,Panlong Cave in Guangxi province and Longquan Cave in Guizhou province, conversely, have thick dark strips that consist of calcite rich in organic matter and thin bright strips that consist of calcite lack of organic matter. So, stalagmites may record the processes both in climate and in soil.更多还原