Post-Paleozoic activity - Lamont-Doherty Earth Observatory ...
Post-Paleozoic activity - Lamont-Doherty Earth Observatory ...
Post-Paleozoic activity - Lamont-Doherty Earth Observatory ...
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FOSSILS<br />
FOOTPRINTS, BURROWS, ROOTS.<br />
REPTILE BONES, PLANT<br />
IMPRESSIONS, BURROWS<br />
FOOTPRINTS, BURROWS, CLAMS,<br />
REPTILE AND FISH BONES,<br />
. ..... . . .... . PLANTS, POLLEN<br />
.. ...<br />
ARTICULATED FISH AND REPTILES,<br />
CONCHOSTRACANS, OSTRACODES,<br />
INSECTS. PLANTS, POLLEN<br />
LAKE<br />
LEVEL<br />
- +<br />
Van Houten cycle<br />
W. Manspeizer and Others<br />
LAKE<br />
LEVEL<br />
- +<br />
BED<br />
THICKNESS<br />
- Ccml 0<br />
~0.c % DESICCATION<br />
a CRACKS LAKE LEVEL<br />
I ,<br />
compound cycles<br />
2nd order 3rd order<br />
LAKE<br />
LEVEL<br />
- +<br />
Figure 22. Generalized Van Houten cycle and compound cycles. A. Generalized Van Houten cycle<br />
showing properties of the divisions and inferred lake level; gray zones represent red beds. Idealized cycle<br />
most closely resembles those in the Jurassic Towaco Formation of the Newark basin. T.O.C. stands for<br />
total organic carbon content. B. Hierarchical relationship between Van Houten cycle and generalized<br />
compound cycles with inferred duration and lake levels. The idealized sections are closest to cycles in the<br />
Triassic Lockatong and the Passaic formations.
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