• Question: What is bedrock?

    Asked by ellz13 to Angus, Christian, Hannah, Laura, Simon on 18 Jun 2013.
    • Photo: Simon Holyoake

      Simon Holyoake answered on 18 Jun 2013:

      bedrock is the solid rock underneath looser materials like sand, gravel, soil and clay, in many places it can be hundreds of metres underground!

    • Photo: Hannah Bentham

      Hannah Bentham answered on 18 Jun 2013:

      Bedrock is the term we use for solid (consolidated) rock that sits underneath soil and broken /weathered/unconsolidated rock at the very surface. It’s very important to reach bedrock in geophysics, drilling and civil engineering projects, but sometimes it is really deep down.

    • Photo: Christian Maerz

      Christian Maerz answered on 18 Jun 2013:

      I would define bedrock as the really hard stuff (granite, basalt etc.) that lies under the sediments. Basically, it is the earth’s real crust that was produced by magmatic processes quite a long time ago.

    • Photo: Laura Roberts Artal

      Laura Roberts Artal answered on 19 Jun 2013:

      Great answers by the other scientist!

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