surficial
Americanadjective
Other Word Forms
Derived Forms
Etymology
Origin of surficial
1890–95; blend of surface and superficial
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Deep and intense weathering of soils and mineral deposits exposed at the surface can result in the formation of surficial deposits.
From Textbooks • Jan. 1, 2017
Groundwater slowly moves through the rock and surficial materials.
From Textbooks • Jan. 1, 2015
Mineral deposits of the "igneous after-effect" type may be profoundly altered through surficial agencies.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
Mineral deposits of direct magmatic segregation are seldom much affected by surficial alteration, perhaps because of their coarse crystallization and their intermingling with resistant crystalline rocks.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
On the whole, minerals of this mechanically deposited group are not greatly affected by later surficial alteration and concentration, because, having already been subjected to weathering, they are in a condition to resist such influences.
From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
