Originally posted by ewest:
Those pine trees will grow in lots of different kinds of soil . George what about the soils generally in those 4 sub groups of E. Tex. - are they the same?
No, they are not all the same��
The point that I was trying to make, and failed, that it is a mistake to classify all soil groups as �East Texas�.
Imagine a �layer cake� of sedimentary rocks, subsequently eroded from hills to valleys, to river flood plains, changing one type to another.
�It all depends�
Soils weather from rocks�
Good question � thanks.
ps: not to further complicate matters, but a geologic cross section between N.E. to S. E. Texas, in addition to erosional and structural features, will demonstrate �increase in thickness and depth �down-dip�, changing from older surface to younger surface rocks, all deposited in shallow seas toward present day Gulf of Mexico.
