Freethought & Rationalism Archive

Valentine Pontifex · 01-02-2003, 12:14 PM

Glen Morton has posted another knock-out article. This time he debunks a recent article posted by Answers in Genesis.

Creationist Misuse of the Green River Formation

(edited to fix URL)

Blinn · 01-02-2003, 12:49 PM

That link doesn't work.

Creationist Misuse of the Green River Formation

Nickle · 01-02-2003, 02:16 PM

Great read, thanks!

LiveFreeOrDie · 01-03-2003, 06:17 AM

Hmm.

I've personally sent a few emails to the Dr. Buchheim referred to by Mr. Morton as "a Seventh-Day Adventist Geologist who believes in a global flood". I did not get the impression in those emails that he was a global flood supporter.

I'll send a short email to Glenn to make sure he has a basis for his claim...

LiveFreeOrDie · 01-03-2003, 03:00 PM

At my suggestion, Glenn contacted Dr. Buchheim directly and has revised the essay to no longer label him a creationist.

Kudos to Glenn for the quick correction.

ps418 · 01-04-2003, 07:11 AM

Howdy all. I also sent Morton an email, telling him that he left out an important piece of evidence working in his favor -- the newly described caddisfly/tufa stromatolites. The following is from my article on microbolites:

Quote:

Leggitt and Cushman (2001) describe large, stromatolitic buildups, up to 9m tall and 40m in diameter and exposed along 70km of outcroup, from the base of the Laney Member of the Green River Formation. The buildups are arranged in a reef-like pattern along the northern margin of GRF in Wyoming (p. 377). A unique aspect of these particular buildups is that they are characterized by couplets consisting of calcified, oriented caddisfly larval cases overlain by microbial laminae, overlain by more larval cases, etc. The Green River stromatolites were apparently repeatedly colonized by caddisfly larvae, perhaps because the surface microbes were a handy source of food. Leggitt and Cushman (2001) propose that that each caddisfly/microbial carbonate couplet represents a yearly pupation cycle, based upon observations of modern analogues, and the fact that most caddisfy species are univoltine (one life cycle per year).

Similar caddisfly/ microbial buildups, columnar in shape and up to 15m thick, have been documented from the Oligo-Miocene of the Massif Central, France (Bertand-Sarfati, 1994; Hugueney et al., 1990). Caddisfly buildups, much smaller and lacking stromatolitic lamination, have been reported from the lower, Tipton Member of the GRF also (Bradley, 1924; Biaggi et al., 1999).Merz-Preib and Riding (1999) and describe layered and unlayered tufa deposits forming in two freshwater streams in southwest Germany, and note the presence of calcified Chironomid larval cases. They reported a maximum yearly accretion rate of 2.2mm on experimentally deployed substrates. Drysdale (1999) describes calcified caddisfly larval cases in travertine deposits forming in streams in Queensland, Australia.

Patrick

01-02-2003, 12:14 PM	#1
Valentine Pontifex Veteran Member Join Date: Jul 2001 Location: Orion Arm of the Milky Way Galaxy Posts: 3,092	Green River Glen Morton has posted another knock-out article. This time he debunks a recent article posted by Answers in Genesis. Creationist Misuse of the Green River Formation (edited to fix URL)

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01-02-2003, 12:49 PM	#2
Blinn Veteran Member Join Date: Aug 2001 Location: Ohio, USA Posts: 1,162	That link doesn't work. Creationist Misuse of the Green River Formation

01-02-2003, 02:16 PM	#3
Nickle Regular Member Join Date: Oct 2001 Location: Texas Posts: 385	Great read, thanks!

01-03-2003, 06:17 AM	#4
LiveFreeOrDie Junior Member Join Date: May 2001 Location: Milwaukee, WI, USA Posts: 77	Hmm. I've personally sent a few emails to the Dr. Buchheim referred to by Mr. Morton as "a Seventh-Day Adventist Geologist who believes in a global flood". I did not get the impression in those emails that he was a global flood supporter. I'll send a short email to Glenn to make sure he has a basis for his claim...

01-03-2003, 03:00 PM	#5
LiveFreeOrDie Junior Member Join Date: May 2001 Location: Milwaukee, WI, USA Posts: 77	At my suggestion, Glenn contacted Dr. Buchheim directly and has revised the essay to no longer label him a creationist. Kudos to Glenn for the quick correction.

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