I recently heard about a study that was done wherein organic material
was buried for a few weeks or months, and when it was retrieved and
tested by radiometric methods, was dated hundreds of thousands of
years old. This was just hearsay, so the details may be inaccurate,
and I am uncertain if this was done recently or not, but I'm leaning
toward recently. At any rate, I need a link to the article, or to know
where I can locate it (if it exists), and it would also be helpful to
know if it was peer-reviewed and anything else that might help me
determine how factual it is, though that is not a requirement for this
question.

There are lots of scientists who debate the accuracy of radiometric
dating methods (most of their arguments may be found on Creationist
websites and books); however, I was unable to find the specific
article you were seeking. If you'd like more general information, just
let me know.

Kriswrite

Radiocarbon dating is only used to date things less than 50,000 years
old. Therefore the date could not have been reported to be "hundreds
of thousands of years old". Also, nothing is perfect, and if someone
made a mistake and contaminated the test in some way, it does not
invalidate the entire concept of radiocarbon dating.

This is a standard fable of the anti-evolutionists screed. Like
everything else they put out, it is erroneous.

http://www.c14dating.com/corr.html gives a number of reasons why a
particular organic material may date incorrectly:

Contamination by limestone of certain freshwater shellfish: the
limestone has no radioactive C and and will bias attempts to determine
the date of the shell.

Oceanic differential: The C14 ratio in the ocean lags the atmosphere
by about 400 years due to slow diffusion of atmospheric C into the
water.

Pollution: dumping large quantities of coal pollution into the
atmosphere as a result of the industrial revolution has upset the
usual balance.

The Bomb: Increase radioactivity since Hiroshima has upset the usual balance.

More here:
http://archaeology.about.com/cs/datingtechniques/a/timing_3.htm

and here:
http://www.biblicalchronologist.org/answers/c14_results.php