"The Great Unconformity can be traced across North America and globally, including most of today’s southern hemisphere landmasses, along with Western Europe and Siberia—this makes it the 'most widely recognized and distinctive stratigraphic surface in the rock record'.
This surface in most regions separates continental crystalline basement rock from overlying undeformed Cambrian marine fossil-bearing sedimentary rock. It thus records the onset of the denudation of continental crust, followed by the first major marine transgression (Sauk Sequence) and sediment accumulation on the continents
The Great Unconformity is a clear case where uniformitarianism does not apply. Extensive planation surfaces are not forming today but channel erosion is occurring today. The very high energy erosion of the global Flood would have had the capacity to wear down Precambrian cratons to simultaneously form the Great Unconformity as a peneplaned surface over tremendous areas of the earth. Most Flood geologists point to this widespread erosional discontinuity in the geological record, known as the Great Unconformity, as indicating the Flood’s abrupt onset...." See article by Harry Dickens link below:
This surface in most regions separates continental crystalline basement rock from overlying undeformed Cambrian marine fossil-bearing sedimentary rock. It thus records the onset of the denudation of continental crust, followed by the first major marine transgression (Sauk Sequence) and sediment accumulation on the continents
The Great Unconformity is a clear case where uniformitarianism does not apply. Extensive planation surfaces are not forming today but channel erosion is occurring today. The very high energy erosion of the global Flood would have had the capacity to wear down Precambrian cratons to simultaneously form the Great Unconformity as a peneplaned surface over tremendous areas of the earth. Most Flood geologists point to this widespread erosional discontinuity in the geological record, known as the Great Unconformity, as indicating the Flood’s abrupt onset...." See article by Harry Dickens link below:
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