A Global Boundary Stratotype Section and Point, sometimes referred to as a golden spike, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary o
The 'golden spike' (bronze disk in the lower section of the image) or 'type section' of the Global Boundary Stratotype Section and Point (GSSP) for the base of Ediacaran period (Ediacara, South Australia)
The 'golden spike' marking the Ediacaran GSSP
Stratigraphic section
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A stratigraphic section is a sequence of layers of rocks in the order they were deposited. It is based on the principle of original horizontality, which states that layers of sediment are originally d
Global Boundary Stratotype Section and Point
…A Global Boundary Stratotype Section and Point (GSSP), sometimes referred to as a golden spike, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale. The effort to define GSSPs is conducted by the International Commission on…
A stratigraphic section of Ordovician limestone exposed in central Tennessee.
Strata in Salta, Argentina.