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  2. Global Boundary Stratotype Section and Point - Wikipedia

    en.wikipedia.org/wiki/Global_Boundary_Stratotype...

    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.

  3. Golden spike - Wikipedia

    en.wikipedia.org/wiki/Golden_spike

    The original "golden spike", on display at the Cantor Arts Museum at Stanford University. The Golden Spike (also known as The Last Spike [1]) is the ceremonial 17.6-karat gold final spike driven by Leland Stanford to join the rails of the first transcontinental railroad across the United States connecting the Central Pacific Railroad from Sacramento and the Union Pacific Railroad from Omaha on ...

  4. List of Global Boundary Stratotype Sections and Points

    en.wikipedia.org/wiki/List_of_Global_Boundary...

    The Status column has a "golden spike" for every GSSP which has been formally agreed by the ICS. Those without have only candidate sections which have not yet been formally ratified. The clock stands for times that are currently defined only by an age. The "Defining markers" column lists the evidence in the rock used to define the boundary.

  5. For the past 20 years, scientists have argued that Earth has left behind the Holocene – a relatively stable period in the planet’s 4.5 billion-year history that lasted for 11,7000 years since ...

  6. 6 Rare Coins That Will Spike in Value in 2024 - AOL

    www.aol.com/6-rare-coins-spike-value-160527060.html

    Here are six rare coins that could see a spike in value this year, with descriptions provided by Coinage. ... The eagle $10 gold piece was produced from 1795 to 1804, while the half eagle ($5 gold ...

  7. Rail fastening system - Wikipedia

    en.wikipedia.org/wiki/Rail_fastening_system

    A golden tie, also known as a golden spike or the last spike, may be used to symbolize the start or the completion of an endeavor. These are less often silver or another precious material. Historically, a ceremonial Golden Spike driven by Leland Stanford connected the rails of the First Transcontinental Railroad across the United States. The ...

  8. Gold Spike - Wikipedia

    en.wikipedia.org/wiki/Gold_Spike

    Gold Spike can refer to: Gold Spike (property) The Golden spike that was used to commemorate the completion of the First transcontinental railroad; See also.

  9. 7 Rare Coins That Will Spike in Value in 2025 - AOL

    www.aol.com/finance/7-rare-coins-spike-value...

    Often referred to as the “King of American Coins,” the 1804 silver dollar is expected to spike in value. Only 15 known specimens exist, with prices for top-quality examples reaching $7.86 million.