Biogenic sediment consisting of less than 1 percent gravel-size (greater than or equal to 2 mm) particles, with a sand to mud ratio less than 1 to 9, and less than 50 percent carbonate minerals.
Neuendorf et al. 2005 put cutoff at 30 percent skeletal remains; this is raised to 50 percent in This vocabulary for consistency with definition of other Biogenic sediment category
based on Bates and Jackson 1987 & Hallsworth & Knox 1999
Parents: Biogenic sediment (29); Mud size sediment (171)
Children: Carbonate ooze (42); Siliceous ooze (239)
[Description taken from GeoSciML SimpleLithology201012.rdf]
Category: Analysed material
The different kinds of sample material collected in the field have been classified hierarchically. Examples: “till”, “soil”, “vegetation”. Taken from the “Sample_Types_SHARED” database table.
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