放射性測(cè)定年代 isotopic age determination; radioactive age determination; radioactive dating; radiogenic age determination; radiogenic dating; radiometric dating
The ancestors of modern man moved into and across europe , ousting the neanderthals , faster than previously thought , a new analysis of radiocarbon data shows 用放射性碳測(cè)定年代的一項(xiàng)最新數(shù)據(jù)顯示,現(xiàn)代人祖先進(jìn)入歐洲并逐漸取代尼安德特人的過程要比傳統(tǒng)理論認(rèn)為的更快。
Previously it was thought that this spread took place between 43 , 000 and 36 , 000 years ago , but the re - evaluated data suggests that it actually happened between 46 , 000 and 41 , 000 years ago - starting earlier and moving faster 但是用放射性碳測(cè)定年代的一項(xiàng)最新數(shù)據(jù)表明,遷移過程應(yīng)該在4 . 6萬年至4 . 1萬年前就已經(jīng)發(fā)生了,即現(xiàn)代人祖先更早且更快地進(jìn)入了歐洲。
Rather than taking some 7 , 000 years to colonize europe from africa , the reinterpreted data shows the process may only have taken 5 , 000 years , scientist paul mellars from cambridge university said in the science journal nature on wednesday . " the same chronological pattern points to a substantially shorter period of chronological and demographic overlap between the earliest . modern humans and the last survivors of the preceding neanderthal populations , " he wrote 據(jù)路透社2月23日?qǐng)?bào)道,來自劍橋大學(xué)的科學(xué)家保羅米拉斯在最新一期的英國(guó)自然雜志上指出,用放射性碳測(cè)定年代的一項(xiàng)最新數(shù)據(jù)表明,人類祖先從非洲進(jìn)入歐洲后,僅花費(fèi)了5000年的時(shí)間就取代了歐洲早期居民尼安德特人,而不是傳統(tǒng)的理論所認(rèn)為7000年。