Tree rings and seasonal sedimentary deposits called varves can be counted to determine absolute age.
可木的年轮被称为纹泥的季节性沉积物进行计数来确定其年龄。
The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.
但纹层厚度的变化可能揭示出小冰期沉积通量的减个世纪六十年代之后沉积通量的增加。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
And there are a lot of varves in Messel.
Messel 有 varves。
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