[meteorite-list] Recent Article on Dating Meteorites

From: Paul H. <oxytropidoceras_at_meteoritecentral.com>
Date: Tue, 26 Jan 2010 9:51:48 -0600
Message-ID: <20100126105148.3SE8T.389047.imail_at_eastrmwml29>

1. Age of Solar System Needs to Be Recalculated by Lisa
Grossman, Science News, January 4, 2010

http://www.usnews.com/science/articles/2010/01/04/age-of-solar-system-needs-a-fresh-look.html

http://www.wired.com/wiredscience/2010/01/solar-system-age/

?Those differences could mean that current estimates of the age
of the solar system overshoot that age by 1 million years or more.
Historical estimates place the age at about 4.5 billion years?a
number that is not precise enough to show a difference of one
million?but more finely honed recent calculations place the
age at more like 4.5672 billion years. One million years is still an
eyeblink at this scale, representing the difference between 4.566
and 4.567, but this difference is important in understanding the
infant solar system.?

2. Age of the Solar System Possibly Miscalculated: One of the
equations may not be accurate. by Tudor Vieru, January
4, 2010,

http://news.softpedia.com/news/Age-of-the-Solar-System-Possibly-Miscalculated-130995.shtml

3. Brennecka, G. A., S. Weyer, M. Wadhwa, Janney, J. Zipfel, and
A. D. Anbar, 2010, 238 U/ 235 U Variations in Meteorites:
Extant 247 Cm and Implications for Pb-Pb Dating. Science.
vol. 327, no. 5964, pp. 449 ? 451. DOI: 10.1126/science.1180871

http://www.sciencemag.org/cgi/content/abstract/science.1180871

Yours,

Paul H.
Received on Tue 26 Jan 2010 10:51:48 AM PST