Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A rock containing clay materials and calcium and magnesium carbonates, with approximately the same composition as marl.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. marl

from the GNU version of the Collaborative International Dictionary of English

  • n. A sandy calcareous straum, containing, or impregnated with, iron, and lying between the upper and lower Lias of England.

from The Century Dictionary and Cyclopedia

  • n. In geology, argillaceous and more or less ferruginous limestone.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. metamorphic rock with approximately the same composition as marl

Etymologies

marl +‎ stone (Wiktionary)

Examples

  • Yes, it's local stone, called marlstone – basically a limestone that has iron in it, I think, hence the lovely rusty colour.

    Ginger Bread, Ginger Beer

  • On the left is a ruined castle, built of shelly marlstone, which, according to Arabian tradition, once belonged to the Berdovil in question.

    The Caravan Route between Egypt and Syria

  • When there is an upper story, which is rarely the case, it is approached from the courtyard by a staircase, usually dilapidated, with stairs of shelly marlstone.

    The Caravan Route between Egypt and Syria

  • Harish lies along the side of an undulating hill fronting the sea, at the foot of the large quadrangular castle, a substantial building of calcareous marlstone.

    The Caravan Route between Egypt and Syria

  • Belemnites are generally found in immense numbers together, especially in the marlstone quarries of the Midlands, and in the lias cliffs of Dorsetshire.

    Falling in Love With Other Essays on More Exact Branches of Science

  • Mine haulage will be by rail, like the Bingham Canyon pit in Utah, and the carloads of marlstone will also moved to some place that has plenty of water, already has a petrochemical industry, and could even use the waste rock that remains after the kerogen is extracted.

    Aspen Times - Top Stories

  • This is clearly a place that could use fill - crushed marlstone by the cubic mile.

    Aspen Times - Top Stories

  • The leftover marlstone takes up about 30 percent more volume.

    Aspen Times - Top Stories

  • Granted, some of this energy would be need to haul the marlstone up to the Great Divide before starting down.

    Aspen Times - Top Stories

  • Thus a marlstone train, dropping to sea level after crossing the Rockies, could function like a big hydroelectric plant, powered by rolling rock instead of falling water.

    High Country News - Most Recent

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