Environmental Engineering Reference
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FIGURE 9
Subtidal high-frequency cycles (HFCs) within the Burrowed Member of the Fort
Terrett Formation in Real County, Texas. (A) Hydrostratigraphy, lithostratigraphy, paleoenviron-
ments, cycles, carbonate depositional textures, and ichnofabric indices. (B) Irregular boxwork of
Thalassinoides
tunnels and shafts that form intraburrow macroporosity within HFC D. See inset
box on (A) for location. (C) Regular maze of
Thalassinoides
tunnels that form intraburrow macro-
porosity along a bedding plane within HFC E. (D) Interior of a
Thalassinoides
tunnel partly filled
with terra rossa clay.
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