1887

n Koers : Bulletin for Christian Scholarship = Koers : Bulletin vir Christelike Wetenskap - Beginsels en metodes vir die bepaling van die ouderdom van hominied fossiele en hulle vindplekke : research article

USD

 

Abstract


Paleoanthropologists have an array of physical dating methods developed by researchers in the physical sciences. These techniques permit students of hominid evolution and associated culture to have increasing confidence that the evidence of past hominid morphology as expressed by the fossil finds is being placed in the correct chronological order. This article explains in a simple and straightforward way the evidence and logic that have led scientists to conclude that hominid fossils are not a few thousand years but at least several million years old. The main focus is on the 40Ar/ 39Ar technique, but other absolute dating techniques such as carbon-14, uranium-thorium-lead and radiocalcium are also reviewed. Relative dating methods are briefly discussed together with paleomagnetism (geomagnetism), optic stimulated luminescence and amino acids.

Paleoantropoloƫ beskik tans oor 'n verskeidenheid fisiese dateringsmetodes wat deur fisici ontwikkel is. Met hierdie tegnieke kan navorsers van hominied-evolusie en verwante kultuur met toenemende vertroue die fossiel-morfologie van hominiede in die regte chronologiese volgorde plaas. Die inhoud van hierdie artikel verklaar in eenvoudige terme, die bewyse en logika wat wetenskaplikes tot die slotsom laat kom het dat fossiele nie slegs 'n paar duisend jaar oud is nie maar wel miljoene jare oud is. Die hooffokus was op die 40Ar/ 39Ar -dateringsmetode, maar ander absolute daterings-tegnieke soos koolstof-14, uraan-thorium-lood en radiokalsium is ook bespreek. Relatiewe dateringsmetodes is kortliks bespreek, tesame met paleomagnetisme (geomagnetisme), opties gestimuleerde luminesensie en aminosure.

Loading

Article metrics loading...

/content/koers/71/Issue-2-3-4/EJC59273
2006-01-01
2016-12-03
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error