Figure 25. Oak woodlands on the Eastern Cross Timbers in northern Tarrant County.
Site 3. Eastern Cross Timbers.
The Eastern Cross Timbers have
developed on Woodbine Sandstone bedrock. This bedrock produces hilly terrain
with sandy loam soils supporting oak woodlands.
Figure 25. Oak woodlands on the Eastern Cross Timbers in northern Tarrant County.
The Woodbine Sandstone bedrock contains clay-rich beds which help give the rock distinct layering.
Figure 26. Outcrop of Woodbine Sandstone in northern Tarrant County - notice the
layering of sandy and clayey beds.
Figure 27. Fine layering in Woodbine Sandstone boulder accentuated by erosion.
Soils produced in this region are sandy loams low in organic content. Like the soils in the Western Cross Timbers, these soils are relatively erodible by surface water run-off and produce hilly terrain.
Figure 28. Soil developed on the Woodbine Sandstone bedrock in the Eastern Cross
Timbers region.
Native vegetation in the Eastern Cross Timbers includes Little Bluestem, Purpletop (grasses), shrubs such as Mesquite and Post Oak and Blackjack Oak trees.
Figure 29.
Little Bluestem
Figure 30.
Purpletop
Figure 31.
Mesquite (shrub)
Figure 32. Blackjack Oak
Figure 33. Post Oak