New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence

Details New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27....5a&link_type=abstract

Lunar and Planetary Science, volume 27, page 5

Physics

3

Georgiaites, Potassium-Argon, Tektites, Tektites: Georgia, Twiggs Clay

Scientific paper

The tektites of east-central Georgia, called "georgiaites," are a subset of the larger North American tektite strewn field. Previous studies have reported the potassium-argon age of Georgia tektites at 32.0 Ma, 33.7 Ma, and 34.0 Ma, respectively. Glass et al., using the 40Ar-39Ar method, obtained a 34.5 Ma age for a single Muong Nong type georgiaite. Corrected fission track ages given by Storzer et al. have a range between 1.0 and 35.8 Ma with the lower dates accounted for by post-depositional thermal alteration. However, isotopic dating of North American microtektites from Barbados suggests that the strewn field was produced at 35.4 (+/- 0.6) Ma. In addition to the lack of consistently reliable age data for Georgia tektites, their stratigraphic occurrence has yet to be satisfactorily resolved. Although the North American strewn field was deposited in the late Eocene, georgiaites have been found only on formations ranging in age from Oligocene to Pleistocene so are thought to have been transported from their original site of deposition. In this investigation we present new potassium-argon ages for the Georgia tektites and an upper Eocene formation in an effort to resolve tektite stratigraphic location in coastal main deposits of east-central Georgia.

Affiliated with

Also associated with

No associations

Rating

New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Potassium-Argon Ages for Georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences About Tektite Stratigraphic Occurrence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1611114