parent material


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parent material

[′per·ənt mə‚tir·ē·əl]
(geology)
The unconsolidated mineral or organic material from which the true soil develops.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

parent material

The material from which a soil has been formed.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
A prerequisite for use of profile points was laboratory soil analyses, plus parent material that could be reliably classified.
LMD supplies powder from nozzles and performs laser melting and bonding to parent material. This enables the combination of various types of materials, as well as three-dimensional fabrication and cladding.
The powdered glasses served also as parent material at evaporation of thin films for Fourier Transform infrared (FTIR) spectroscopic studies.
The parent material of the soils is predominantly calcareous alluvium and loess.
It is heterogeneous medium in nature and its properties vary from one point to other due to nature of parent material, vegetation, topography and climate.
Weld lines are unlikely to be as strong as the parent material. The strength that can be obtained at a weld line is partly a matter of the material being molded and partly a matter of processing conditions.
C., Soil genesis as related to parent material and climate.
Developing stages and characteristic of the soil is affected by its parent material. Parent material is a the starting material is ground, which is comprised from organic material and minerals.
Comparison of parent material SCG failure time (7893 hours when tested at 95[degrees]C and [K.sub.l] = 18.486 MPa-[mm.sup.0.5]) with the butt-fusion joint material SCG failure time (less than 100 hours when tested at 95[degrees]C and [K.sub.l] = 18.486 MPa-[mm.sup.0.5]) were discussed in an earlier work.
The parent material for sandy soil doesn't contain many nutrients.
The genetic markers were the basis for investigators' conclusion that the parent material of the Ames strain of anthrax spores used in the attacks came from a flask labeled RMR-1029 that was created and solely maintained by Ivins.