The soils here vary from chalk over Kimmeridgian marl to compact chalk to silex.
From the post-gazette.com
The marl prairie that historically flooded every rainy season no longer floods.
From the miamiherald.com
Rough quartz sand, clay and fine marl sank and became lithified layer by layer.
From the en.wikipedia.org
Large quantities of seaweed as well as lime and marl are available for manure.
From the en.wikipedia.org
From Middle to Late in the Jurassic marl and limestone formed in deep water.
From the en.wikipedia.org
Its hydroperiod is longer than the marl prairie, although its plants are less diverse.
From the en.wikipedia.org
Those elements combined with mud to create a lime-rich soil for some plants called marl.
From the newsobserver.com
Marl was commonly used as a fertiliser, and is recorded in use in 1719.
From the en.wikipedia.org
The rock is marl, a variety of limestone laced with a solid fossil fuel called kerogen.
From the time.com
More examples
A loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer for soils deficient in lime
Marl may refer to: *Marl, calcium carbonate or lime-rich sedimentary rock *Marl, North Rhine-Westphalia, a city in North Rhine-Westphalia, Germany *Marl, Lower Saxony, a municipality in Lower Saxony, Germany *Marl Kingdom, a series of RPGs created by Nippon-Ichin*Marled yarn is made from strands ...
(Marled) Yarn is a long continuous length of interlocked fibres, suitable for use in the production of textiles, sewing, crocheting, knitting, weaving, embroidery and ropemaking. Thread is a type of yarn intended for sewing by hand or machine. ...
A mixed earthy substance, consisting of carbonate of lime, clay, and possibly sand, in very variable proportions, and accordingly designated as calcareous, clayey, or sandy; To cover, as part of a rope, with marline, marking a peculiar hitch at each turn to prevent unwinding
(Marled) Typically found in sweaters, marled yarn occurs when two colored yards are twisted together.
To wrap a small line around another.
A soft carbonate rock composed of an admixture of fine-grained calcite and clay. See argillaceous limestone
Friable mixture of subequal amounts of micrite and clay minerals
A soft, earthy, crumbling stratum of varying composition.