是的,地球的年龄约为45亿年(45亿年)。你的链接的文章描述了(这是如何形成的)[1]和我们如何知道。不确定性是低于1%,部分取决于同位素年龄测定方法和在一定程度上定义。我没有听到任何科学建立不同年龄的限制,但在我们访问方法和数据我们有今天,有一个广泛的估计。初步估计是基于海洋的盐度增加,但这些估计未能认识到盐也从海水在俯冲带,形成(蒸发岩)[2]。值得注意的是(开尔文勋爵)[3]20 - 40数百万年的合理估计。估计是基于热损失自地球形成和保留其能源的能力。不幸的是,开尔文勋爵未能考虑在他的计算地幔对流。对流地幔能够提供热表面更长一段时间[4]。他也住过早知道E = mc ^ 2美元,所以能源也是地球内产生热量的主要来源。 [Radioactive decay][5] is also the process we use to measure the age by radiometric methods. It must have been frustrating for early geologist to not be able to put a number of the Earth's age. As a rudiment of that time, we still use their [relative terminology][6] to describe the development. Our present estimate is based on a range of agreeing models and data. The Earth science community has, in general, moved on to new and more challenging questions. [1]: //www.hoelymoley.com/questions/4362/how-was-the-earth-formed?rq=1 [2]: https://en.wikipedia.org/wiki/Evaporite [3]: https://en.wikipedia.org/wiki/William_Thomson,_1st_Baron_Kelvin#Age_of_the_Earth:_geology_and_theology [4]: http://onlinelibrary.wiley.com/doi/10.1029/2000JB900028/pdf [5]: https://australianmuseum.net.au/radioactive-dating [6]: https://en.wikipedia.org/wiki/Geologic_time_scale#Terminology