Flint meal is a rich source of siliceous microfossils. The material is often packed with sponge spicules, as well as foraminifera and ostracods. To collect flint meal unweathered, fresh flints recently eroded out of chalk […]
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Tag: Sieves
Extracting microfossils from Lower Chalk
Microfossils can be obtained from the Grey Chalk Subgroup (formerly the Lower Chalk, minus the Plenus Marls) with great ease. This rock has a high clay content in comparison with the whiter chalks and breaks […]