Talk:Carbonatite

message: I changed "dominated by natrolithe and trona" to nyerereite and gregoryite (the former two only appear as alteration products). Riannek (talk) 14:05, 21 December 2009 (UTC)
thread_title: Oldoinyo Lengai

message: Just had a talk from a Prof. who's main research area is Carbonatites. She stated that to be classed as a Carbonatite >50% carbonate material is required to be present. Currently the article states 20% however does not quote a source. I can't find a source to quote the 50% from as I don't have any of my igneous text books with me. ClimberDave 14:27, 15 October 2007 (UTC)
thread_title: Classification

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replies: text: Archived links are good; I tracked down the updated site for the "dead" link and fixed it in the article. — Gorthian (talk) 02:30, 15 November 2016 (UTC)
thread_title:  External links modified 

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thread_title:  External links modified (January 2018) 

message: The sentence "...natrolite, sodalite, apatite, magnetite, barite, fluorite, ancylite group minerals, and other rare minerals not found in more common igneous rocks" is obviously wrong. Natrolite is present in basalts (its voids); syenites; and other rocks. Sodalite - in some melilitolites, and sodalite-rich alkaline SILICATE rocks; "Apatite" (there is no such mineral; there is a group and supergroup of this name) is the most common phosphorus mineral found in a number of sedimentary rocks, granitoids, nepheline syenites, and others; magnetite - is skarns, basalts, some granitoids, some metasomatites, etc.; "barite" (there is no such mineral; the correct name is: baryte) is one of the main components of a number of hydrothermalites residing within geochemically variable lithologies (serpentinites included), also a common accessory mineral, e.g., in pyrometamorphics; fluorite - extremely common in hydrothermalites, greysens, some granitoids, syenite-related rocks, some pegmatites; ancylite group minerals: also in syenites. The listed minerals are absolutely not characteristic for carbonatites, maybe beside the ancylite group. The list should include gregoryite, nyerereite (for natrocarbonatites), pyrochlore-supergroup species, and some (additional) Sr-rich minerals.Eudialytos (talk) 20:31, 21 December 2019 (UTC)
thread_title: Errors

message: The reference 13," Woolley & Church 2005, Woolley & Kjarsgaard 2008a, 2008b", is probably a bit too ambiguous.
Could it possibly refer to the following for the 2005 reference:
* "Extrusive carbonatites: A brief review"
* https://www.sciencedirect.com/science/article/abs/pii/S0024493705001064
And what about the 2008 reference. Is this it:
* Carbonatite Occurrences of the World: Map and Database
* https://ostrnrcan-dostrncan.canada.ca/entities/publication/c44a9799-edbb-4c64-aff3-2f6cc875fef6
There's supposedly 2 references in 2008, but  can only find the map above.
I really don't have a clue to the validity of these references. I simply got fascinated by carbonatite volcanoes one weekend! Russetrob (talk) 11:00, 22 April 2024 (UTC)
thread_title:  Vague reference