Definition of surficial in English:

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surficial

Pronunciation: /sərˈfiSHəl/

adjective

Geology
Relating to the earth’s surface: surficial deposits
More example sentences
  • 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.

Derivatives

surficially

adverb
Example sentences
  • The chalcopyrite is mostly surficially altered to chrysocolla, tenorite, and limonite.
  • Numerous newly collected ‘star cobbles’ from Georgia have siliceous spicules preserved surficially and internally.
  • Three configurations of broadband seismic instruments were deployed: a borehole seismometer, a sensor buried surficially in the sediments, and a sensor resting on the seafloor.

Origin

Late 19th century: from surface, on the pattern of superficial.

For editors and proofreaders

Syllabification: sur·fi·cial

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