Radioactive dating in antarctica list of rules for dating my teenage daughter

23-Jun-2020 03:26

The radioactive potassium-argon dating method has been demonstrated to fail on 1949, 1954, and 1975 lava flows at Mt Ngauruhoe, New Zealand, in spite of the quality of the laboratory’s K–Ar analytical work.Argon gas, brought up from deep inside the earth within the molten rock, was already present in the lavas when they cooled.We know the true ages of the rocks because they were observed to form less than 50 years ago.

radioactive dating in antarctica-52

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For this reason, the researchers point their fingers at an interstellar source, and suggest it rained down as dust.

How can we trust the use of this same ‘dating’ method on rocks whose ages we don’t know?

If the method fails on rocks when we have an independent eye-witness account, then why should we trust it on other rocks where there are no independent historical cross-checks?

It is not as well publicized as its larger close neighbour Mt Ruapehu, which has erupted briefly several times in the last five years.

However, Mt Ngauruhoe is an imposing, almost perfect cone that rises more than 1,000 metres (3,300 feet) above the surrounding landscape to an elevation of 2,291 m (7,500 feet) above sea level (Figure 3).If any of these assumptions are violated, then the technique fails and any ‘dates’ are false. Eleven samples were collected from five recent lava flows during field work in January 1996—two each from the 11 February 1949, 4 June 1954, and 14 July 1954 flows and from the 19 February 1975 avalanche deposits, and three from the 30 June 1954 flow (Figure 6).

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