(Table 1) Geochemistry of volcanic glass shards from tephra layers of the Gul...
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The early hominids of East Africa were dated by determining the ages of tuff beds at the sites. Despite much research using palaeomagnetic and K/Ar-dating techniques, some of...
东非的早期人科动物（early hominids）的年代通过测定遗址内凝灰岩床的年代得以确定。尽管已有诸多采用古地磁（palaeomagnetic）与钾氩测年（K/Ar-dating）技术的相关研究，但其中部分……
