Want this question answered?
· A diatoms silica covering is called a frustule · Fossil evidence suggests that diatoms originated during, or before, the early Jurassic Period. · Some species of diatoms can reach up to 2 millimeters in length. ill post more later
There are many deposits of diatomite throughout the world, but high quality deposits are rare. It was discovered in modern times in Germany.
The cell wall of diatoms are very thick and remain long after the diatoms die. when the cell wall remains of many dead diatoms clump together, they form a crumbly, abrasive substance called diatomaceous earth or diatomite.============================================The rock type called Chalk is also made of diatom skeletons.
John Tibby has written: 'A mid- to late-Holocene diatom and pollen palaeoecology of the Tuross Lake system, South Coast, New South Wales' -- subject(s): Diatoms, Fossil, Fossil Diatoms, Fossil Plants, Fossil Pollen, Paleobotany, Paleoecology, Plants, Fossil, Pollen, Fossil
Albert Mahood has written: 'The Harry E. Sovereign collection of Northwest Pacific diatoms' -- subject(s): California Academy of Sciences, Catalogs, Catalogs and collections, Diatoms, Fossil Diatoms, Paleobotany
US
Coal, maybe?
K. E. Lohman has written: 'Late Eocene nonmarine diatoms from the Beaver Divide area, Fremont County, Wyoming' -- subject(s): Fossil Diatoms, Paleontology
G Dallas Hanna has written: 'Pliocene diatoms of Wallace County, Kansas' -- subject(s): Diatomaceae, Fossil, Fossil Diatomaceae, Paleontology
it is a fossil copy of an organism filled withsediment or mineral deposits.
pennates,centric
Either Limestone Deposits, Fossil Fuel Deposits, or Soil.Source: An unanswered science quiz question