Concept of mineral systems and its application to the study of mineral diversity and evolution

database, nuove specie, discrediti,
ridefinizioni, classificazioni, ecc.
Rispondi
Avatar utente
Marco E. Ciriotti
Messaggi: 24277
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
Contatta:

Concept of mineral systems and its application to the study of mineral diversity and evolution

Messaggio da Marco E. Ciriotti » lun 26 feb, 2018 10:29

Prossima pubblicazione.

Referenza:
▪ Krivovichev, V.G., Charykova, M., Krivovichev, S.V. (2018): The concept of mineral systems and its application to the study of mineral diversity and evolution. European Journal of Mineralogy, 30, (in press).
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

Avatar utente
Marco E. Ciriotti
Messaggi: 24277
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
Contatta:

Re: Concept of mineral systems and its application to the study of mineral diversity and evolution

Messaggio da Marco E. Ciriotti » sab 09 giu, 2018 15:40

Referenza:
▪ Krivovichev, V.G., Charykova, M., Krivovichev, S.V. (2018): The concept of mineral systems and its application to the study of mineral diversity and evolution. European Journal of Mineralogy, 30, (in press).

Abstract:
The chemical diversity of minerals can be analysed in terms of the concept of mineral systems, defined by the set of chemical elements essential for the definition of a mineral species. Only species-defining elements are considered as essential. According to this approach, all minerals are classified into ten types of mineral systems with the number of essential components ranging from 1 to 10. For all the minerals known today, only 70 chemical elements act as essential species-defining constituents. The number of minerals of different chemical elements are calculated as follows (number of mineral species is given in parentheses): oxygen (4138), hydrogen (2814), silicon (1479), calcium (1182), sulfur (1064), aluminum (989), sodium (953), iron (953), copper (643), arsenic (601), phosphorus (599), and magnesium (576). The distribution of the majority of the species-defining elements among mineral systems submits to a normal distribution. Using the concept of mineral systems, different geological objects can be compared from the viewpoint of their mineral diversity as exemplified by alkaline massifs (Khibiny, Lovozero, Russia, and Mont Saint-Hilaire, Canada), evaporite deposits (Inder, Kazakhstan, and Searles Lake, USA) and fumaroles at active volcanoes (Tolbachik, Kamchatka, Russia, and Vulcano, Sicily, Italy). The concept of mineral systems can be applied to mineral evolution overall by calculating the mean number of elements for the first three stages in the evolution of minerals as proposed by R.M. Hazen and co-authors in 2008, plus a fourth period corresponding to Hazen's stages 4–10, as follows: 2.08 ± 0.45 (I: ur-minerals); 2.68 ± 0.13 (II: minerals of chondritic meteorites); 3.86 ± 0.07 (III: Hadean minerals); 4.50 ± 1.47 (IV: post-Hadean minerals).

Ndr: Il PDF è disponibile con un interessante raffronto tra Tolbachik e Vulcano.
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

Rispondi

Chi c’è in linea

Visitano il forum: Bing [Bot] e 3 ospiti