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Author Topic:   Earth science curriculum tailored to fit wavering fundamentalists
Minnemooseus
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Posts: 3893
From: Duluth, Minnesota, U.S. (West end of Lake Superior)
Joined: 11-11-2001
Member Rating: 4.0


Message 580 of 1053 (753596)
03-20-2015 10:24 PM
Reply to: Message 579 by ThinAirDesigns
03-20-2015 7:43 PM


Re: Morton pages
Morton made a brief appearance (44 messages) back in 2007.
EvC Forum: grmorton Topic Index
Moose

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 Message 579 by ThinAirDesigns, posted 03-20-2015 7:43 PM ThinAirDesigns has not replied

  
Minnemooseus
Member
Posts: 3893
From: Duluth, Minnesota, U.S. (West end of Lake Superior)
Joined: 11-11-2001
Member Rating: 4.0


(1)
Message 658 of 1053 (758593)
05-28-2015 9:04 PM
Reply to: Message 657 by JonF
05-28-2015 1:40 PM


KBS Tuff
What offhand seems to be the best KBS Tuff topic is starting at message 7 of the "Dating Methodology and its Associated Assumptions" topic.
Moose

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Minnemooseus
Member
Posts: 3893
From: Duluth, Minnesota, U.S. (West end of Lake Superior)
Joined: 11-11-2001
Member Rating: 4.0


(1)
Message 871 of 1053 (761163)
06-29-2015 1:52 AM
Reply to: Message 864 by Admin
06-28-2015 8:49 AM


Walther's Law revisited (OSLT)
So when a shale layer is great in extent it implies an underlying wide continental shelf, such as the one off our east coast?
Remember this wonderful diagram you posted here:
Now consider that the upper-left to lower-right dimension may be (say) 1000 miles, while the vertical dimension might be (say) 1000 feet.
You're getting substantial areas of sands, muds, and carbonates - But at any time, the depositional areas of each are considerably smaller. The sands at the lower-right were deposited much (maybe many millions of years) earlier than the sands of the uppper-left. Note the difference between the chronostratigraphic correlation and the lithostratigraphic correlation in the rock columns at the lower-left.
Having a huge area of sandstone does not necessarily mean that you had a huge simultaneous area of sand deposition. On the other hand, you might have a huge area of sand that indeed was a huge simultaneous area of aeolian sand deposition, as discussed by roxrkool here.
And remember, the above is a diagram that approximates reality. Beware of taking it too literally.
Moose

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