transgression -- (n) A rise in sea level relative to the land.
tuff -- n. A general term for consolidated rocks made of material ejected from volcanic explosions.
Transgression:
An advance of the sea over land areas. Possible causes include a rise in sea level or subsidence.
Transpiration:
A process of plants removing water from the soil and releasing it into the atmosphere through their leaves.
cyclothem A series of beds, of interest because they include coal, which were associated with unstable shelf or interior basin conditions in which alternating marine transgressions and regressions occurred.
 See also: Asphalt, Tuff, Tectonic, Strike, Soil
  
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