Talk:Greywacke

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This article incorporates text from the Encyclopædia Britannica Eleventh Edition, now in the public domain.

Greywacke should probably be regarded as deprecated in favor of terms with a genetic implication. Most rocks that were labeled greywackes are probably turbidites -- that is, rocks formed of sediments deposited by turbidity currents. 69.9.146.66 08:03, 20 December 2005

Turbidites aren't rock types though - they're formations, sequences. I just finished dealing with a turbidite sequence that was made up of both greywackes and other rock types. If you take a hand sample of greywacke out of a Turbidite formation, it's still a Greywacke. So the name really deserves to stand,particularly when it's still turning up in Textbooks 30 years after Turbidites were first described. Weebs 03:57, 31 January 2007 (UTC)