Radiometric dating results
Dating the particles which make up the rock wouldn’t give you the age of the rock itself.
In addition, the redeposition process upsets the conditions necessary to achieve accurate results through radiometric dating.
It is more accurate for shorter time periods (e.g., hundreds of years) during which control variables are less likely to change.
There are a number of implausible assumptions involved in radiometric dating with respect to long time periods.
QUESTION: Can we date sedimentary rocks using radiometric dating techniques?
ANSWER: Sedimentary rocks cannot be dated directly using radiometric dating, which is based on the idea that when rocks are in liquid form, their radiometric clock resets.
Two of the formations were situated in the stable Saharan Shield region, and one within the Central High Atlas fold-belt.
There is no systematic difference between the pole-positions derived from these two regions of contrasting tectonic history, and furthermore, no significant difference between the mean Jurassic pole-position for Morocco and that for South-east Africa.
The sedimentary particles predate the rock which they form.One key assumption is that the initial quantity of the parent element can be determined.With uranium-lead dating, for example, the process assumes the original proportion of uranium in the sample.One assumption that can be made is that all the lead in the sample was once uranium, but if there was lead there to start with, this assumption is not valid, and any date based on that assumption will be incorrect (too old).In the case of carbon dating, it is not the initial quantity that is important, but the initial ratio of C, but the same principle otherwise applies.