If the lithology and fossil content of two bodies of rock on opposite sides of a canyon are identical,then these remaining outcrops were likely physically connected at one time and formed part of an extensive,sheet-like layer of rock.This idea summarizes the principle of ________.
A)superposition
B)original continuity
C)original horizontality
D)uniformitarianism

Question

If the lithology and fossil content of two bodies of rock on opposite sides of a canyon are identical,then these remaining outcrops were likely physically connected at one time and formed part of an extensive,sheet-like layer of rock.This idea summarizes the principle of ________. 
A)superposition 
B)original continuity 
C)original horizontality 
D)uniformitarianism

Quizplus · Accepted Answer

The principle of original continuity states that layers of sediment initially extend laterally in all directions before they terminate, either by thinning at the edges of their basin of deposition, by interfingering with another sediment type or by Grade out. As the lithology and fossil content of two bodies of rock on opposite sides of a canyon are identical, it suggests that these outcrops were physically connected and formed part of an extensive, sheet-like layer of rock. Thus, this idea summarizes the principle of original continuity.

If the Lithology and Fossil Content of Two Bodies of Rock