variablecontexts

An arbitrary Variable Context identification number.

Depositional context. Examples are: *anachronic – specimen older than the primary deposit, e.g. a Paleozoic spore in a Holocene deposit; may be redeposited from the catchment or may be derived from long distance, e.g. Tertiary pollen grains in Quaternary sediments with no local Tertiary source. A Pleistocene specimen in a Holocene archaeological deposit, possibly resulting from aboriginal fossil collecting, would also be anachronic. *intrusive – specimen generally younger younger than the primary deposit, e.g. a domestic pig in an otherwise Pleistocene deposit in North America. *redeposited – specimen older than the primary deposit and assumed to have been redeposited from a local source by natural causes. *articulated – articulated skeleton *clump – clump, esp. of pollen grains