‘He also led bedrock and surficial geologic mapping projects in the Chugach Mountains of South Central Alaska for five years.’
‘The most important aspect of the New Jersey research for the Navy is the effects on the acoustics of shallow-water continental shelf environments of surficial stratigraphic development and preservation.’
‘Another strong argument against the mammoth death-in-the-Flood hypothesis is that the Beringian animals are buried in unconsolidated surficial sediments overlying lithified sedimentary rocks.’
‘New applications bring together soil data with land use, climate, surficial geology and farm management information.’
‘The resulting samples represent modern unconsolidated surficial deposits of the shallow shelf.’
Origin
Late 19th century from surface, on the pattern of superficial.
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