(View exact match)

CATEGORY: term; geology
DEFINITION: The interface of surfaces between two successive stratigraphic levels, either vertical or horizontal. Various geological criteria are used to distinguish between two contact types: conformable and unconformable. Conformable contacts are deposit conditions not significantly different or interrupted from an adjacent unit. Unconformable contacts are surfaces of no deposit or erosion in an adjacent unit.
contact mold
CATEGORY: artifact
DEFINITION: A mold used to produce a full-sized, or part of a full-sized, glass item.
contact period
CATEGORY: chronology; term
DEFINITION: The period in the history and culture of the Americas when the first impact of the Europeans was made.

Display More Results