Concepedia

Studies of coal balls of the donets basin

N. S. Snigirevskaya

Review of Palaeobotany and Palynology · 1972 · 26 citations · 2 references

DOI

Concepts

References

2

V. On the present distribution and orgin of the calcareous concretions in coal seams, known as “coal balls”

Marie Carmichael Stopes, David M. Watson · Philosophical Transactions of the Royal Society of London Series B Containing Papers of a Biological Character · 1909 · 69 citations · Full text

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Occurrence and significance of marine animal remains in American coal balls

Sergius H. Mamay, Ellis L. Yochelson · USGS professional paper · 1962 · 51 citations · Full text

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