
Vocabulary Starter Quiz - Building a Timeline
Quiz by Christiaan Heunis
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When weathering, erosion and other processes made GAPS in the rock record
Horizontal layers of sedimentary rock are placed on top of the tilted, eroded layers
Horizontal layer of sedimentary rock overlies another horizontal layer of sedimentary rock that has been eroded
When a layer of sedimentary rock overlies a layer of igneous or metamorphic rock, the eroded surface is easier to identify.