In geology, a platform
is a continental area covered by relatively flat or gently tilted, mainly sedimentary strata
, which overlie a basement
of consolidated igneous
or metamorphic rocks
of an earlier deformation. Platforms, shields and the basement rocks together constitute cratons
Parker, Sybil P. (Ed.). 1997. McGraw-Hill Dictionary of Geology and Mineralogy. New York: McGraw-Hill.