Marl is an earthy material rich in carbonate minerals, clays and silt; when hardened into rock this becomes marlstone. It typically contains thirty five to sixty five percent clay and sixty five to thirty five percent carbonate, an intimate mixture of clay and calcium carbonate formed under freshwater conditions. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Classification
Classification UseBuilding and Construction 2 Wikipedia 'Marl' states this use (or use-bearing statement); earth5 pass. UseSoil Amendment or Fertilizer 2 Wikipedia 'Marl' states this use (or use-bearing statement); earth5 pass. Formation ClassSedimentary (an intimate mixture of clay and calcium carbonate that lithifies into marlstone) 1 Connections
Associated With
Source Abava Valley (Wikipedia)
Source Homoclinal ridge (Wikipedia)
Source Kupferschiefer (Wikipedia)
Source Mercia Mudstone Group (Wikipedia)
Source Pietra di Bismantova (Wikipedia)
Source Tagus Basin (Wikipedia)
Caused By
Source Marl (Wikipedia)
Classified As
In Discipline
Sources
1. Marl (Wikipedia)
Wikimedia FoundationLead section
Marl or marlstone is a carbonate-rich mud or mudstone which contains variable amounts of clays and silt.
Lead section
Marl is also a common sediment in post-glacial lakes, such as the marl ponds of the northeastern United States and marl lakes of the Canadian Rockies.
Caused By: Sedimentation, Article text
It is formed in marine or freshwater environments, often through the activities of algae.
View the Source 2. Wikidata: Marl
Wikidata Q184053
Pietra di Bismantova (Wikipedia)
Associated With: Pietra di Bismantova, Lead paragraph
The spur is composed of yellowish calcarenite over a marl basement, all formed in the Miocene as a sea bottom.
Associated With: Pietra di Bismantova, Lead, rock Marl
The spur is composed of yellowish calcarenite over a marl basement, all formed in the Miocene as a sea bottom.
View the SourceAbava Valley (Wikipedia)
Associated With: Abava Valley, Article text, rock MarlQuote, Associated With: Abava Valley, Article text, rock Marl
Beneath a veneer of Quaternary deposits-chiefly glacial till and glaciofluvial sand and gravel-lie Upper Devonian bedrocks composed of interbedded sandstones, clays, dolomites and marls.
Homoclinal ridge (Wikipedia)
Associated With: Homoclinal ridge, Lead, rock MarlQuote, Associated With: Homoclinal ridge, Lead, rock Marl
Homoclinal ridges are the expression of regional outcrops of moderately dipping strata, typically sedimentary strata, that consist of alternating beds of hard, well-lithified strata, i.e. sandstone and limestone and weak or loosely cemented strata, i.e. shale, mudstone, and marl.
Kupferschiefer (Wikipedia)
Associated With: Kupferschiefer, Lead, rock MarlQuote, Associated With: Kupferschiefer, Lead, rock Marl
The Kupferschiefer (German for Copper Shale, Copper Schist or Copper Slate) or Kupfermergel (Copper Marl), (T1 or Z1) is an extensive and remarkable sedimentary unit in Central Europe.
Mercia Mudstone Group (Wikipedia)
Associated With: Mercia Mudstone Group, Lead, rock MarlQuote, Associated With: Mercia Mudstone Group, Lead, rock Marl
It is frequently encountered in older literature as the Keuper Marl or Keuper Marl Series.
Tagus Basin (Wikipedia)
Associated With: Tagus Basin, Article text, rock MarlQuote, Associated With: Tagus Basin, Article text, rock Marl
In the interior of the area defined by these mountains and by the minor reliefs of the Hercynian massif, which completes the closure to the west, it is structured in a graben filled by Cenozoic materials, sands, clays, marls, gypsum and some limestone in the upper levels, which constitute horizons of silting up of the ancient lake that occupied the original depression.
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