Search found 9 matches

by sathearn
Sun Jun 07, 2015 4:40 am
Forum: Other planets and moons
Topic: Wrinkled Mercury's shrinking history
Replies: 3
Views: 11113

Re: Wrinkled Mercury's shrinking history

>Can't wait to find out what will happen if certain individuals in the infamous Expanding Earth thread read this ...
Our response to this is the same as to every other attempt by conventional theorist to use their flawed model to explain planets. We point out the flaws. This one was easy. But ...
by sathearn
Sun Jan 11, 2015 5:12 pm
Forum: Plate tectonics
Topic: Africa-Eurasia plate boundary west of Gibraltar
Replies: 1
Views: 7214

Africa-Eurasia plate boundary west of Gibraltar

On first consideration it is not obvious why "the structurally unified eastern half of the Atlantic Ocean" (Yu. V. Chudinov, 1998, p. 162) should be thought of as the location of a boundary dividing the African Plate from the Eurasian Plate.

If it is taken to be such a boundary, what type of plate ...
by sathearn
Fri Jan 09, 2015 3:49 am
Forum: Principle of auxotectonics
Topic: Wilson's supercontinent cycles
Replies: 2
Views: 6360

Re: Wilson's supercontinent cycles

Thanks for this useful aid to visualization.

Of course one may reassemble these terranes for any of the given time intervals by breaking up the present continents. However, I don't see that one must "break up" the present continents (presumably the three continents in your graphic represent the ...
by sathearn
Mon Mar 31, 2014 2:45 am
Forum: Other planets and moons
Topic: Wrinkled Mercury's shrinking history
Replies: 3
Views: 11113

Wrinkled Mercury's shrinking history

Over at RatSkep, DougC recently posted a link to a new estimate, based on lobate scarp evidence, of contraction of Mercury - a reduction in radius of about 7 percent. Earlier estimates based on less complete photography from the Mariner mission in the mid-1970s, and also considering lobate scarps ...
by sathearn
Mon Mar 31, 2014 2:29 am
Forum: Other planets and moons
Topic: Europa - new evidence for plate tectonics on an alien world?
Replies: 4
Views: 10035

Re: Europa - new evidence for plate tectonics on an alien world?

The page below has references and links to Dr. Kattenhorn's publications. Many of them look interesting. Anyone motivated to take up questions of the interpretation of other planets and moons would do well to become familiar with such work.

http://www.webpages.uidaho.edu/~simkat/publications.html
by sathearn
Wed Dec 18, 2013 4:00 am
Forum: Other planets and moons
Topic: Europa - new evidence for plate tectonics on an alien world?
Replies: 4
Views: 10035

Re: Europa - new evidence for plate tectonics on an alien world?

(1) There is that bias in the way the question is being framed, but at least at this stage they're being pretty clear about the alternatives. The danger, of course, is that the big scientific question which the strong evidence for crustal dilation presents will not be squarely addressed, but will ...
by sathearn
Tue Dec 17, 2013 4:34 am
Forum: Other planets and moons
Topic: Europa - new evidence for plate tectonics on an alien world?
Replies: 4
Views: 10035

Europa - new evidence for plate tectonics on an alien world?

Scientists suggest new evidence that zones of crustal compensation may exist on Europa. Otherwise the pervasive zones in which crustal dilation is evident, and geologically recent, would imply expansion of this moon of Jupiter.

See story here.
by sathearn
Sat Dec 15, 2012 9:34 pm
Forum: Other planets and moons
Topic: Evidence of past expansion of the Moon.
Replies: 1
Views: 11083

Re: Evidence of past expansion of the Moon.

Here's an excellent discussion of this new evidence, elucidating for a more general audience the inference that linear dike-like structures, distributed isotropically around the lunar surface, may indicate some post-formation expansion early in the Moon's history.

http://www.planetary.org/blogs ...
by sathearn
Sun Oct 02, 2011 10:43 pm
Forum: Opposing arguments
Topic: Recent Youtube discussion re "measurements" refuting ET
Replies: 2
Views: 141929

Recent Youtube discussion re "measurements" refuting ET

I copy my recent series of responses to Enginmaster on "Expanding Earth My Ass" directly below, followed by a more complete (still with much extraneous stuff deleted) sample of the discussion that has gone on there, regarding the tendency to neglect the actual grounds on which expansion has been ...