Page 201 - Carbonate Facies in Geologic History

188 Pennsylvanian-Lower Permian Shelf Margin Facies

--71.-=-
I
I
--·--~-----------l
i . i
.
.. -----.-.-- -.-.t-.
I L .
VI i ; I 1
... ...
Z
'" !:' '" I
Q I
I

..... to .. ..
..... .. + ... ... t" +
t .... 1 ......
.. ~ .... r
.. .. .:. ,,~.. .. .. • .I" " " " ", +
. .
... c,:). ~ 4( ....... .
......... "~Io- ..... .. *i" .........
t
4
. .
..
.. + .. ++t+
..
.... z ...... + to •
.tX ...
.. ... ........ .. ..
...
!
'" ...
:::I
·u
.. .... ._._._._.{...._---_.- Ou
-' .. ..
.; .. z
i
.,
.~<
-' 02
iJ ..
... • .:> i OIl .. .. ..
..
\oJ
z OIIU
z
"':::
iJ
" .. .. -, ..
-'
U
0 ..
o ,. .. ... ! OIl -,u
%: VI .. -' z OIl "''''
iJ" ...
'" ; ..
0
\oJ .. .. ... ....
U
:: 0 ... u OIl .. 0 "'Z
Z
c
.. 0
C
i
-----~ ------------, co ~ iJ U ... '" -' au
i i ~8D~illJ
sent in both areas maximum shelf inundation. Work by Heckel and Cocke (1969)
and Harbaugh (1964) has described these as consisting of both Archeolitho-
ph yllum (encrusting platy red algae) and the familiar codiacean? platy genera. The
accumulations in Kansas are flat lenses of phyUoid algal wackestone with numer-
ous spar-filled cavities. They are only 3- 10 m thick, tens ofkm wide and separated
by channels. Lateral slopes are gentle except at sides of channels where a maxi-
mum of 25 m relief appears. The channels cross the presumed strike of the
mound-bearing strata. They may be 1- 2 km wide and one has been traced as far