Definition of source rock in English:

source rock

Line breaks: source rock

noun

Geology
  • 1A rock formation from which later sediments are derived or in which a particular mineral originates.
    More example sentences
    • The geometry or shape of individual grains appears to be a property inherited from the original crystals of the silicate minerals in the source rock.
    • Because the quartzitic gravels and progenitor source rock are notably heterogeneous, the resultant fulgurite glass likewise is demonstrably variable, as seen by the range of colors, textures, and swirled banding.
    • It has been suggested that fluvial and lacustrine source rocks were locally deposited in grabens created along the transtensional edges of these rotating microcontinental blocks.
  • 1.1A sediment containing sufficient organic matter to be a future source of hydrocarbons.
    More example sentences
    • However, permeability barriers may also inhibit the migration of oil and gas from the source rock to the hydrocarbon reservoir.
    • The lower limit of intermediate-burial diagenetic settings, and thereby the upper limit of deep-burial diagenetic settings, is defined as the top of the liquid oil window in hydrocarbon source rocks.
    • The Ara Group has a high hydrocarbon potential and contains carbonate reservoirs, organic-rich carbonate and shale source rocks and evaporite seals.

More definitions of source rock

Definition of source rock in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space