Alternatives to radiocarbon dating

” The photo shows a zircon crystal with two spots differing by 20 million years, within the same rock! Geologists from the Queensland University of Technology (QUT) offer these warnings about dating zircons: cautions against misinterpretation of zircons even in the title: “Use and abuse of zircon-based thermometers: A critical review and a recommended approach to identify antecrystic zircons.” Antecrystic zircons are units of rock within a zircon that became incorporated before the zircon crystallized.

They could have vastly different ratios of parent and daughter elements.

“But some zircon crystals may not be related to their host rocks at all.

They may have come from the source of the magma deep in the Earth’s crust or they may have been picked up by the magma on its way to the surface.

Simplistic presentations about how scientists date rocks overlook the worldview assumptions involved.

A cartoony video from the American Chemical Society and PBS Digital Studios oversimplifies the matter of dating rocks. ”, written and delivered apparently by a homosexual who calls a boxer named Rock “dreamy” as if he wishes to “date” him, the video begins with an assertion: “The Earth is 4.565 billion years old, give or take a couple million years or so. ” The video proceeds to explain radiometric dating in simple terms, leaving only tiny bits of doubt at the end: “Not that they are satisfied, of course; geochemists are still fine-tuning their estimates of the age of the earth and looking for more evidence to support or diminish their theories.” The overall impression, though, is that dates of rocks and meteorites are well established down to four significant figures.

Unfortunately for the overconfident, those theories are plagued with anomalies. These hard minerals, often containing uranium, are presumed to lock in the parent and daughter elements.

“From this, we then estimate the age of the event that caused them to form.

In this report, for example, we are told that using one radioactive dating technique, a lunar rock sample is 4,283 million years old, plus or minus 23 million years old.

In other words, there is a 95% certainty that the age is somewhere between 4,283 23 million years and 4,283 – 23 million years.

The main point of this entry is the importance of distinguishing fact from interpretation, especially when analyzing confident-sounding presentations made for a less-discerning public.

Secular geologists are highly motivated to make things look old, because their idol, the Bearded Buddha, needs the time to work his magic.

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