Definition of gypsiferous in US English:

gypsiferous

adjective

  • See gypsum

    • ‘Quartz is the dominant mineral in veins in siliceous rocks, calcite in limestones, and gypsum in gypsiferous sediments.’
    • ‘Is composed almost entirely of a peculiar greenish-blue, unctuous, laminated clay, gypsiferous in places; light-bluish-gray color when fresh, weathering dull yellow and making a black soil.’
    • ‘At the left margin of the valley, the gypsiferous sequence is underlain by a clay and marl unit with an exposed thickness greater than 30 m.’
    • ‘By this mechanism holes, commonly up to 20m deep and 40m or more across, continue to appear suddenly in gypsiferous terranes throughout the world.’
    • ‘Note the rounded boulders in the fluvial sediments, and the mixing of gypsiferous and quartzose lithologies at places on the outcrop.’
    • ‘The others include the gypsiferous deposits of Lake Estancia and Lake Trinity.’
    • ‘However, another hypothesis suggests that gypsiferous deposits could also be formed from the reaction between calcium carbonate and sulfuric acid, which was apparently from the oxidation of the element sulfur.’
    • ‘The message in this Note is that reported values of exchangeable calcium for calcareous or gypsiferous soils are usually incorrect.’
    • ‘Some areas are mined for the underlying gypsiferous materials that is used for making wall board.’
    • ‘Calcareous and gypsiferous soils are common along many river floodplains in the subarctic and arctic regions of Alaska as well as in more arid regions such as deserts and grasslands.’

Pronunciation

gypsiferous

/jipˈsif(ə)rəs//dʒɪpˈsɪf(ə)rəs/