Black Mat
Referenced in 1 episode
Definition
A geological layer hypothesized to contain evidence of a comet impact circa 12,900 years ago, often associated with mass extinction events during the late Pleistocene.
Archive of alternative media content
Referenced in 1 episode
A geological layer hypothesized to contain evidence of a comet impact circa 12,900 years ago, often associated with mass extinction events during the late Pleistocene.