Geological Context
The Roxbury Conglomerate, from which this pot is alleged to have come, has been dated as having accumulated between 570 and 593 million years ago and during the Ediacaran Period. It accumulated at the bottom of a deep rift basin, which was filled with marine water, within submarine fan and slope environments. Metamorphism has significantly altered the Roxbury Conglmerate to subgreenschist facies and created within it a well-developed and closely spaced slaty cleavage that is oriented approximately perpendicular to bedding. Tectonism has also flattened, stretched, indented, and fractured the pebbles and associated matrix of the Roxbury Conglomerate to the point that it often has the appearance of flow structure.
Read more about this topic: Dorchester Pot
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