2.6 Saskatchewan Time scale

By shayla875453656
  • 4600 BCE

    Earth is formed

  • 2500 BCE

    SK is part of a large ancient continent

  • 2100 BCE

    Breakup of the ancient continent

    creation of a large ocean
  • 1900 BCE

    Volcanoes in SK

  • 1850 BCE

    Wathaman Batholith

    an intrusion of magma under the surface
  • 1800 BCE

    Orogeny, mountain building

    earth changes from an anoxygenic environment to an oxygenic environment. Martin sandstone is deposited with stromatolites
  • 1700 BCE

    Erosion of mountains

  • 1300 BCE

    Uranium deposited

  • 544 BCE

    SK covered by the epicontinental Sauk Sea

    Hard shelled invertebrates including Trilobites
  • 478 BCE

    Meteorite hits SK

    Leaving behind the Carswell Meteorite Crater
  • 470 BCE

    Tyndall Stone deposited as massive limestone

  • 390 BCE

    Winnipegosis Reefs are deposited

    later to become a trap for oil
  • 385 BCE

    Potash is deposited in the shallow sea that covers SK

  • 355 BCE

    First amphibians

  • 248 BCE

    Mass extinction in the oceans

    90% of the species disappear
  • 245 BCE

    First dinosaurs

  • 220 BCE

    First mammals

  • 213 BCE

    SK is again covered by a shallow sea

  • 100 BCE

    Diamonds are brought to the surface of SK in volcanic pipes

  • 75 BCE

    Shallow sea begins to retreat

  • 70 BCE

    Swamps. rivers and lakes form the badlands.

    Lignite is formed from the plants deposited in swamps.
  • 66 BCE

    Triceratops roam SK

  • 65 BCE

    Extinction of the dinosaurs

  • 50 BCE

    Climate changes, Saskatchewan plateau develops

  • 5 BCE

    Bison come to North America

  • 2 BCE

    Ice age begins, covering SK except for the Cypress Hills area

    Diamonds covered by glacial till
  • 2 BCE

    Humans come to North America

  • 1 BCE

    Origin of the Prairies