摘要
提出用变差函数 (交叉变差函数 )方法刻画地球化学旋回的层次结构 ,并利用东北太平洋 1 787柱状沉积物的硅质生物氧、硅同位素资料 ,具体说明了变差函数刻画地球化学旋回的有效性。
An important fact in the analysis of geochemical stratigraphy is that there is the feature of geochemical cycles with imposed different spatial or temporal scales, which were controlled by enviromental factors with different scales. Therefore, recognizing of different scale geochemical cycles by means of some tools is useful for the study of palaceanography. In the present paper, the author puts forward a tool used universally for this purpose in mining geology and in prognosis of mineral resource, variogram. And by making use of oxygen and silicic istopic composition, the efficency of variogram for recognizing of periodicity of geochemical cycles in deep sea sediments is illustrated.
出处
《海洋科学》
CAS
CSCD
北大核心
1997年第4期28-31,共4页
Marine Sciences
基金
国家海洋局青年基金资助项目!95 2 0 4号
