What are drop stones?



  1. 0 Votes

    Dropstones are “isolated fragments of rock found within finer-grained water-deposited sedimentary rocks.” Dropstones are commonly deposited by glaciers. A glacier will pick up a rock, slowly incorporating it into its mass. Later, when the glacier melts, it deposits the stone in a new location.

  2. 0 Votes

    The mechanism of dropstone formation by glaciers is usually considered to be from floating chunks of ice (ice bergs) that contain rocks. When the ice, floating on a lake adjacent to the glacier, melts, the dropstone falls into the otherwise fine-grained sediments at the bottom of the glacial lake.

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