>Bioturbation may well be a problem today, however, in a multi-event
>Flood catastrophe, bioturbation would be unlikely to occure because of
>the quick succession of burial of each layer. We find multiple layers of
>sediments which reveal no bioturbation, but if today is the sample of the
>past we should find multiple lyares of sediments fully bioturbated.
Bioturbation and burrowing was very common throughout the geologic column.
Look at the article "Entire Geologic Column in North Dakota" on my web page.
Or merely consider this.
"Two thirds of the Haymond is composed of a repititious
alternation of fine- and very fine-grained olive brown sandstone
and black shale in beds from a millimeter to 5 cm thick. The
formation is estimated to have more than 15,000 sandstone beds
greater than 5 mm thick." p. 87.
"Tool-mark casts (chiefly groove casts), flute casts and
flute-lineation casts are common current-formed sole marks.
Trace fossils in the form of sand-filled burrows are present on
every sandstone sole, but nearly absent within sandstone beds.
~Earle F. McBride,"Stratigraphy and Sedimentology of the Haymond
Formation," in Earle F. McBride, Stratigraphy, Sedimentary
Structures and Origin of Flysch and Pre-Flysch Rocks, Marathon
Basin, Texas (Dallas: Dallas Geological Society, 1969), p. 87-88
Give each layer 1 day for recolonization of burrowers the
deposit would require 41 years. Haymond bed 1300 m thick entire
column 5000 m thick. Deposit by Noah flood 1300/5000*326=95 days
this means 157 couplets / day. with burrows.
I don't think you can re-colonize in one day. Allen, how do you explain
this? And I can get you more.
Also you didn't explain why old rocks have higher velocities of sound as I
pointed out the other day. How do you explain that?
glenn
Foundation, Fall and Flood
http://www.isource.net/~grmorton/dmd.htm