I took a risk at lowering my IQ, not that it is very high anyway, but I started reading the link. Got to the first sentence. It reads:
newgeology writes:
Cratons are considered to be the oldest parts of continents, but are they?
Halt the bus. I stopped reading right there. Nope, they aren't considered to be the oldest parts of continents.
For example, the Limpopo Belt, seperating the Kaapvaal and Zimbabwe cratons, is older than the Kaapvaal Craton. Metamorphism in the Sand River gneiss dates to 3860 Ma.
Very easy to find out. Even on Wiki.
Limpopo Belt - Wikipedia
Wiki writes:
The Limpopo Belt is located in South Africa and Zimbabwe, runs E-NE, and joins the Kaapvaal craton to the south with the Zimbabwe craton to the north. The belt is of high-grade metamorphic rocks that have undergone a long cycle of metamorphism and deformation that ended 2.0 billion years ago, after the stabilisation of the adjacent massifs. The belt comprises 3 components: the Central Zone, the North Marginal Zone and the South Marginal Zone.
Cratons are not necessarily the oldest parts of continents. It's very old news.
If you want to read and can get hold of it, try:
South African Committee of Stratigraphy (SACS), 1980. Stratigraphy of South Africa,. Part 1. (Comp. L.E. Kent). Lithostratigraphy of the Republic of South Africa, Southwest Africa (Namibia) and the Republics of Bophuthatswana, Transkei and Venda: Handb. geol. Surv. S. Africa., 8.
In chapter 2 (pages 19 to 23), this is discussed and they provide a whole list of references to peer-reviewed, published articles on how the ages were determined.
The creationist writer you referred to is setting up a straw man.
Edited by Pressie, : No reason given.
Edited by Pressie, : No reason given.
Edited by Pressie, : No reason given.
Edited by Pressie, : No reason given.
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