C14 dating coal
When it was learned in 2005 that Triceratops and Hadrosaur femur bones in excellent condition were discovered by the Glendive (MT) Dinosaur & Fossil Museum, Hugh Miller asked and received permission to saw them in half and collect samples for C-14 testing of any bone collagen that might be extracted.
Indeed both bones contained collagen and conventional dates of 30,890 ± 380 radiocarbon years (RC) for the Triceratops and 23,170 ±170 RC years for the Hadrosaur were obtained using the Accelerated Mass Spectrometer (AMS).
The problem: If the material is too old, the small amount of C14 present may not decay in the measurement interval.
Newer, more accurate techniques use mass spectroscopy. The most common contaminant is nitrogen, 0.1% in gem-quality diamonds.
This is because after that many generations of decay, there's so little left it's indistinguishable from background C14 or contamination.
So if people are just the slightest bit sloppy in their technique, they won't be able to accurately date anything older than 55,000 years anyway.1.
I've tried researching it myself, but either my google-fu is weak, or there aren't really any good articles available. tl;dr My dad thinks C14 in diamonds is proof the earth can't be billions of years old. Way to show why r/askscience is now a default sub-reddit =DC14 dating only works on once-living specimens.
Young-earth creationism is not just a denial of evolution, it's a denial of basic principles of physics and engineering that are used on a daily basis all over the world with great success.Sorry if this strays from the topic and breaks rules. (pun very much intended)Here's a video of some dude explaining the C14 in diamonds.In the write up for the video he cites some studies. Accelerated Mass Spectrometer (AMS) dating of dinosaur bone bio-apatite from 170 grams of bone fragments and milligram surface scrapings of an Acrocanthosaurus dinosaur gave ages of 25,750 ± 280 and 23,760 ± 270 respectively.No collagen was detected and only bone bio-apatite was RC dated.