You cut and pasted from a website that publishes someone's opinion,
the author won't even share his name,
the article is not peer reviewed or published in a reputable scientific journal,
the author provides no citations to legitimate scientific literature so that his claims can be validated,
and the only citation provided is to somebody named Jon Covey. A rudimentary Google search reveals Jon Covey is the editor of some obscure creation science newsletter and has never been employed as a legitimate research scientist with expertise in isotope geochemistry.
Moral of the story: your link is not a credible source of reputable scientific information