Bisexual dating free membership virginia west - What problems are encountered in dating metamorphic rocks

Justin is not a Christian but does not particularly seem anti-Christian either.

what problems are encountered in dating metamorphic rocks-48

He was invited to our meeting as a guest speaker solely for his expertise on radioactive dating. He often goes on field trials dating rocks in various regions of the Australian outback.

He has equipment at the University of Adelaide and does the dating analysis himself.

However, sedimentary rocks can be age dated if a volcanic ash horizon or a diabase sill or dyke can be found within the sequence.

For example, if you find a dinosaur bone in a sedimentary sequence and you find an ash layer 10 meter above the bone and another ash layer 20 meters below it, you can determine the age of the two ash layers.

Radioactive elements decay at a certain constant rate and this is the basis of radiometric dating.

But, the decay elements need to be set, much like you would re-set a stop watch for a runner, to ensure an accurate measurement.

Last year we held a number of meetings on the young/old earth issue and gave YECs numerous opportunities to speak.

Andrew Kulikovsky spoke on one occasion and John Hartnett spoke on 2 occasions. About half those who are on the committee are YECs and the others doubt the YEC position to various degrees.

The Wikipedia article that you reference would seem to confirm this.

The technique does have the added advantage that if the ‘ages’ from both the 238U and 235U chains agree with each other, it adds support to the hypothesis that both chains have experienced the same effects during the formation and lifetime of the crystal. ’ The claim is that if a rock undergoes a metamorphic process then some of the U or Pb from the zircon would be lost, which means the ages would no longer be concordant.

Kevin Rogers submitted a comment to that article (reproduced below, edited to focus on substantive issues), to which Dr Jim Mason replies.

Tags: , ,