I happened to be curious just how ice cores become outdated accurately. I am aware carbon-14 is but one process, however ice cores go-back thousands of decades. Would other isotopes with lengthier half-lives be more precise?

In addition, simply how much will it cost as of yet the center? Just how is examples obtained without damaging the ice? I picture keeping the ice intact whenever you can would be acutely valuable.

Many of the answers to these inquiries can be obtained about Ice center Tips page.

Ice cores tends to be dated using counting of yearly levels within uppermost layers. Different ways of internet dating ice cores put geochemisty, wiggle coordinating of ice core registers to insolation time series (Lemieux-Dudon et al. 2010), levels of eruptive ash (tephra) (Vinther et al., 2006), electric conductivity, and making use of numerical stream systems in order to comprehend age-depth interactions (Mulvaney et al., 2012), coupled with firn densification modeling to calculate the delta-age (Lemieux-Dudon et al. 2010). Lees verder →