Physiography, Geology, and Soil Classification
نویسندگان
چکیده
Young’s Branch (YB), located on a portion of the Wayne National Forest in Lawrence County, is located on bedrocks belonging to the Allegheny group. By contrast, Bluegrass Ridge (BR), the other study area in Lawrence County, is underlain by sedimentary strata of the Connemaugh group. The bedrock complex includes a combination of sandstones, sandy shales (or siltstones), and clay shales (Denton et al. 1961). Significant coal strata are much less common here than in Vinton County as the Connemaugh group accounts for less than 5 percent of Ohio’s coal reserves. Interbedded limestone layers appeared more common in the area surrounding BR than near the other study areas. The thickness of these limestone layers varies considerably even over small distances. Thus, the degree to which these limestone layers might influence soil properties depends on the local thickness within each study site.
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