Mind the experts

Nifty Member Posts: 5,015	Mind the experts May 18, 2023 10:03:04 GMT 1 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Nifty on May 18, 2023 10:03:04 GMT 1 and don’t believe what you might read on the net southseacoastalscheme.org.uk/wp-content/uploads/2018/04/8.-Shingle-Factsheet.pdf My tutors informed me that flint was most probably formed in the bodies of sponges.
	Last Edit: May 18, 2023 10:06:32 GMT 1 by Nifty

Polarengineer
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Mind the experts May 18, 2023 10:15:31 GMT 1 Nifty likes this

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Post by Polarengineer on May 18, 2023 10:15:31 GMT 1

Sponge and marine crustation supplied the silica necessary to form flint in chalk
"Where the dissolved oxygen and hydrogen sulphide meet, acidic conditions are generated, carbonate is dissolved and silica precipitated to form flint. The silica that formed the flint derives from silica fixed in the skeletal structure of many marine organisms" off the net.
Back to school and listen carefully this time.

Reality is frequently inaccurate. (The late And sorely missed Douglas Adams)

Nifty Member Posts: 5,015	Mind the experts May 18, 2023 10:21:36 GMT 1 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Nifty on May 18, 2023 10:21:36 GMT 1 She did explain that it was just a theory. Like lots of things. Then, there was always Anne.
	Last Edit: May 18, 2023 10:22:48 GMT 1 by Nifty

Mind the experts

Post by Nifty on May 18, 2023 10:03:04 GMT 1

Post by Polarengineer on May 18, 2023 10:15:31 GMT 1

Post by Nifty on May 18, 2023 10:21:36 GMT 1