| 11. | Some rare calcareous beds and siliceous shales are known.
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| 12. | Benthic diatoms are the dominate type of siliceous algae found in the beds.
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| 13. | The siliceous frustules of diatoms accumulate in fresh and brackish wetlands and lakes.
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| 14. | Lake Magadi is also well known for its extensive deposits of siliceous chert.
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| 15. | Their closest relatives are the thaumatomonads, flagellates that form similar siliceous tests.
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| 16. | The minerals are cemented by a non-carbonate matrix, probably siliceous.
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| 17. | It grows in Eucalyptus woodlands on highly siliceous soils ( sandstone derived ).
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| 18. | The formula may include quartz or other siliceous material.
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| 19. | These may be siliceous deposits or calcareous deposits.
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| 20. | The turret, even without the siliceous cored armor, provided improved ballistic protection.
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