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Creation of the Teton Landscape: The Geologic Story of Grand Teton National ParkReed, John C. (John Calvin)

Science

Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park

Name: Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park
Author: Reed, John C. (John Calvin)

Reed, John C. (John Calvin)

Geology -- Wyoming -- Grand Teton National Park

First man →       0  CENOZOIC
                                     1  MESOZOIC
             First dinosaurs →       2  PALEOZOIC
                                     3
                   500 million       4
      First abundant fossils →       5  PRECAMBRIAN
                                     6
                                     7
                     1 billion       8
                                     9
                                    10
                                    11
                                    12
                                    13
                                    14
        Oldest known fossils →      15
                     2 billion      16
                                    17
                                    18
                                    19
                                    20
                                    21
                                    22
                                    23
                     3 billion      24
                                    25
                                    26
                                    27
          Oldest dated rocks →      28
                                    29
                                    30
                                    31
                     4 billion      32
                                    33
                                    34
                                    35
    Minimum age of the earth →      36

                         ENLARGEMENT OF THE LAST SIX INCHES
    ABSOLUTE TIME   INCHES   STRATIGRAPHIC TIME SCALE
      (Years Ago)

                0     0      CENOZOIC          QUATERNARY
                                               TERTIARY
                             MESOZOIC          CRETACEOUS
                      1                        JURASSIC
                                               TRIASSIC
                      2      PALEOZOIC         PERMIAN
                                               PENNSYLVANIAN
                                               MISSISSIPPIAN
                      3                        DEVONIAN
                                               SILURIAN
                                               ORDOVICIAN
      500 million     4      CAMBRIAN
                      5      PRECAMBRIAN
                      6




                PRECAMBRIAN ROCKS—THE CORE OF THE TETONS

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Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park

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