B2: Definitions
- geological strata: In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rock that was formed at the Earth's surface, with internally consistent characteristics that distinguish it from other layers.
- Steven J Gould: he theory of punctuated equilibrium, a view of evolution by which species undergo long periods of stasis followed by rapid changes over relatively short periods instead of continually accumulating slow changes over millions of years.
- geomythology: the study of etiological oral traditions created by pre-scientific cultures to explain—in poetic metaphor and mythological imagery—geological phenomena such as volcanoes, earthquakes, floods, ...