The tangshan archaeological team from nanjing municipal museum and archaeology department of peking university ， gives the locality of the nanjing man fossils ( 1993 - 1994 ) 南京博物馆和北京大学考古系联合组成的汤山考古队确定汤山南京人化石地点(年代测定) 。
A team of scientists came to this controversial conclusion by dating human footprints preserved by volcanic ash in an abandoned quarry in mexico 对保存在火山灰中的人类足迹进行年代测定后，一个科学家小组得出了这一具有争议性的结论。这些火山灰是在墨西哥一个废弃的采石场被发现的。
Dr silvia gonzalez of liverpool ' s john moores university and her colleagues found the footprints in the quarry , some 130km ( 80 miles ) south - east of mexico city , in 2003 来自利物浦约翰?摩尔斯大学的西尔维亚?冈萨雷斯博士和她的同事们于2003年在采石场发现了这些足迹，但是他们今年才完成了足迹的年代测定。
The bacterial bioplastic coating argument is the strongest , as there have been cases in which ancient textiles have yielded radiocarbon dates much younger than other artifacts in the same sites ? most notably in the instance of mummy 1770 in the british museum , whose bones dated 800 to 1 , 000 years older , according to the radiocarbon tests , than the textile in which they were wrapped 细菌性的“原生体覆盖物”的争论来得更激烈，已经有案例，就是古代纺织品的放射性碳年代测定比其他同样大小的史前器物的年代要晚得多? ?最值得注意的例子就是1770年陈列在大英博物馆的木乃伊，根据放射性碳年代测定，骨骼的年代为800至1000年之久，它们都被包裹着。
In order to elaborate the app licability of osl to loess , especially single aliquot regenerative protocol ( sar ) , involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess , such explanations as light bleaching , preheat , anomalous fading , prior - ir exposure were investigated in this paper . for drawing adequate coarse grains from loess , quartz and feldspars , as well as loess , were etched by hydrofluoric acid and fluorosilicic acid . the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains 本文通过渭河流域全新世黄土的光晒退实验，地表黄土样品的d _ e值测定，细颗粒单片的预热、反常衰退、红外暴露实验，说明释光测年在全新世黄土中应用的可行性及单片再生剂量法( sar )在黄土细颗粒中的适用性；为了从黄土中分离出足够的粗颗粒，进行了纯石英和长石的氢氟酸( hf )和氟硅酸( h _ 2sif _ 6 )溶蚀实验，黄土粗颗粒石英溶蚀分离实验；通过细颗粒单片、多片的blsl 、 irsl和post - irosl ，热释光，及粗颗粒石英的blsl的年代测定，选择适于全新世黄土的释光测年方法，并建立了渭河流域全新世黄土的年代序列。
