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GeneralManganese Nodules
18th Apr 2024 23:51 UTCLalith Aditya Senthil Kumar
19th Apr 2024 00:36 UTCEd Clopton 🌟 Expert
19th Apr 2024 02:34 UTCLalith Aditya Senthil Kumar
19th Apr 2024 02:53 UTCAlfredo Petrov Manager
19th Apr 2024 05:13 UTCDalibor Matýsek
19th Apr 2024 15:22 UTCRalph S Bottrill 🌟 Manager
19th Apr 2024 15:58 UTCTony Nikischer 🌟 Manager
So, the term "manganolite" makes sense, and these concretions would fit that term.
20th Apr 2024 11:04 UTCRalph S Bottrill 🌟 Manager
I have also found manganolite used as a synonym of merwinite (in Yue et al 2018).
The original use of manganolite as a rock name seems to be from Wadsworth (1891), as quoted by Holmes (1920) and Kemp (1920), but I cannot find any record of that original reference.
I updated the manganolite page.
20th Apr 2024 11:38 UTCDalibor Matýsek
Konta J. (1972): Quantitative system of residual rocks, sediments and volcaniclastic deposits. Charles University, Prague. (in Czech).
20th Apr 2024 11:54 UTCDalibor Matýsek
20th Apr 2024 14:37 UTCRalph S Bottrill 🌟 Manager
I think your description of manganolite is fairly consistent with our main usage in Mindat, but I think specifying the clay and coarser clastic mineral contents may prove difficult. Until we can find the original description or a formal redefinition it may be best to use it for any unmetamorphosed rock dominated by Mn minerals. Rocks dominated by rhodonite and vittinkiite etc may be best descried as metamanganolites.
However any internet search on manganolite seems dominated by pages with rhodonite/vittinkiite rich metamorphic rocks so we need to accept this as an issue.
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Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 2, 2024 02:15:22