bedrock

• This is the breakdown product of the bedrock, that organisms are busy munching their way through. —  Penelope Boston says there might be life on Mars
• Wood and peat caught fire, and deep underground, the bedrock was compressed until it was hot enough to melt. —  Asimov's SF, October-November2006
• The universe is the bedrock, the lawn and the playground our condominiums sit on and we do not want you digging it up, even the infinitesimal part that you might explore in a few thousand years. —  Asimov's Science Fiction [2001.04]
• Even the bedrock was scratched and grooved, as if some immense, spiky fish had swum this way. —  Gardner Dozois - The Year's Best Science Fiction 23rd Annual Collection (2006)
• We have not yet reached bedrock, and so I remain optimistic that we will find the evidence of early man I so devoutly hope for. —  Magyar Venus

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