Chronostratigraphy

Question 1

Chronostratigraphy:

Answer 1

The element of stratigraphy that deals with the relative time relations and ages of rock bodies

Question 2

Chronostratigraphic Units:

Answer 2

Bodies of rocks, layered or unlayered, that were formed during a specific interval of geologic time

• bound by synchronous horizons.
• The rank and relative magnitude of the units in the chronostratigraphic hierarchy are a function of the length of the time interval that their rocks subtend, rather than of their physical thickness.

Question 3

Global Boundary Stratotype Section and Point (GSSP)

Answer 3

• Should be well studied sites with good exposure and good fossil record
• a complete section with no gaps ( few gaps of time as possible as who disappears and who comes in the really important)