Definition of surficial in English:

surficial

Line breaks: sur|fi¦cial
Pronunciation: /səˈfɪʃ(ə)l
 
/

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.

Origin

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

Derivatives

surficially

adverb
More 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.

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