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    • Diagram showing relative dating of part of cliffs near Whanganui
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 11 May 2011 Size: 58 KB Referencing Hub media

    Diagram showing relative dating1 of part of cliffs near Whanganui. These sedimentary2 rocks were horizontal when formed, with the oldest at the bottom. Tilting of the rocks means that now the rocks are older as you head towards the west.

    1. relative dating: Putting a series of events or objects, such as rock layers, in chronological order, but does not include actual dates.
    2. sedimentary: A type of rock formed after the deposition, compaction and cementation of sedimentary material produced by either the weathering and erosion of the Earth’s surface, biological organisms (shells) or chemical precipitation (ooids). Examples of sedimentary rocks are sandstone, mudstone, limestone and coal.

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    Whanganui rocks and climate cycles

    The study of fossils, combined with accurate dating, gives us a detailed picture of climate and environment changes in New Zealand over the last few million years. Rights: The University of ...

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      relative dating

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      2. Putting a series of events or objects, such as rock layers, in chronological order, but does not include actual dates.

      sedimentary

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      3. A type of rock formed after the deposition, compaction and cementation of sedimentary material produced by either the weathering and erosion of the Earth’s surface, biological organisms (shells) or chemical precipitation (ooids). Examples of sedimentary rocks are sandstone, mudstone, limestone and coal.

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