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Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania. / Zaitsev, Anatoly N.; Keller, Jörg; Spratt, John; Perova, Elena N.; Kearsley, Anton.

In: Canadian Mineralogist, Vol. 46, No. 4, 01.08.2008, p. 843-860.

Research output: Contribution to journal › Article › peer-review

Harvard

Zaitsev, AN, Keller, J, Spratt, J, Perova, EN & Kearsley, A 2008, 'Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania', Canadian Mineralogist, vol. 46, no. 4, pp. 843-860. https://doi.org/10.3749/canmin.46.4.843

APA

Zaitsev, A. N., Keller, J., Spratt, J., Perova, E. N., & Kearsley, A. (2008). Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania. Canadian Mineralogist, 46(4), 843-860. https://doi.org/10.3749/canmin.46.4.843

Vancouver

Zaitsev AN, Keller J, Spratt J, Perova EN, Kearsley A. Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania. Canadian Mineralogist. 2008 Aug 1;46(4):843-860. https://doi.org/10.3749/canmin.46.4.843

Author

Zaitsev, Anatoly N. ; Keller, Jörg ; Spratt, John ; Perova, Elena N. ; Kearsley, Anton. / Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania. In: Canadian Mineralogist. 2008 ; Vol. 46, No. 4. pp. 843-860.

BibTeX

@article{99455ffbb0074cb6ae83869168611f75,
title = "Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania",
abstract = "Samples of natrocarbonatite showing various degrees of alteration are preserved in an older carbonatite platform that existed before and until the 1917 explosive eruption at Oldoinyo Lengai volcano, in Tanzania. The carbonatite samples contain two mineral assemblages: the first consists of relict primary magmatic minerals: nyerereite, fluorite, apatite-(CaF), barite, magnetite and khanneshite. The second consist of low-temperature subsolidus minerals: pirssonite, calcite, shortite, nahcolite, trona, thermonatrite, jacobsite and barytocalcite. Observed relationships between key primary and subsolidus minerals show the following sequence of formation: nyerereite → pirssonite → calcite → shortite. Three major processes, mineral dissolution, metasomatic replacement and crystallization from solution, alter the natrocarbonatite to pirssonite carbonatite, shortite carbonatite and calcite carbonatite. Nyerereite - pirssonite - calcite relationships depend on variations in P(H2O) and P(CO2).",
keywords = "Brines, Calcite, Metasomatic, Natrocarbonatite, Nyerereite, Oldoinyo Lengai, Pirssonite, Replacement, Shortite, Solutions, Tanzania",
author = "Zaitsev, {Anatoly N.} and J{\"o}rg Keller and John Spratt and Perova, {Elena N.} and Anton Kearsley",
year = "2008",
month = aug,
day = "1",
doi = "10.3749/canmin.46.4.843",
language = "English",
volume = "46",
pages = "843--860",
journal = "Canadian Mineralogist",
issn = "0008-4476",
publisher = "Mineralogical Association of Canada",
number = "4",

}

RIS

TY - JOUR

T1 - Nyerereite-pirssonite-calcite-shortite relationships in altered natrocarbonatites, Oldoinyo Lengai, Tanzania

AU - Zaitsev, Anatoly N.

AU - Keller, Jörg

AU - Spratt, John

AU - Perova, Elena N.

AU - Kearsley, Anton

PY - 2008/8/1

Y1 - 2008/8/1

N2 - Samples of natrocarbonatite showing various degrees of alteration are preserved in an older carbonatite platform that existed before and until the 1917 explosive eruption at Oldoinyo Lengai volcano, in Tanzania. The carbonatite samples contain two mineral assemblages: the first consists of relict primary magmatic minerals: nyerereite, fluorite, apatite-(CaF), barite, magnetite and khanneshite. The second consist of low-temperature subsolidus minerals: pirssonite, calcite, shortite, nahcolite, trona, thermonatrite, jacobsite and barytocalcite. Observed relationships between key primary and subsolidus minerals show the following sequence of formation: nyerereite → pirssonite → calcite → shortite. Three major processes, mineral dissolution, metasomatic replacement and crystallization from solution, alter the natrocarbonatite to pirssonite carbonatite, shortite carbonatite and calcite carbonatite. Nyerereite - pirssonite - calcite relationships depend on variations in P(H2O) and P(CO2).

AB - Samples of natrocarbonatite showing various degrees of alteration are preserved in an older carbonatite platform that existed before and until the 1917 explosive eruption at Oldoinyo Lengai volcano, in Tanzania. The carbonatite samples contain two mineral assemblages: the first consists of relict primary magmatic minerals: nyerereite, fluorite, apatite-(CaF), barite, magnetite and khanneshite. The second consist of low-temperature subsolidus minerals: pirssonite, calcite, shortite, nahcolite, trona, thermonatrite, jacobsite and barytocalcite. Observed relationships between key primary and subsolidus minerals show the following sequence of formation: nyerereite → pirssonite → calcite → shortite. Three major processes, mineral dissolution, metasomatic replacement and crystallization from solution, alter the natrocarbonatite to pirssonite carbonatite, shortite carbonatite and calcite carbonatite. Nyerereite - pirssonite - calcite relationships depend on variations in P(H2O) and P(CO2).

KW - Brines

KW - Calcite

KW - Metasomatic

KW - Natrocarbonatite

KW - Nyerereite

KW - Oldoinyo Lengai

KW - Pirssonite

KW - Replacement

KW - Shortite

KW - Solutions

KW - Tanzania

UR - http://www.scopus.com/inward/record.url?scp=56649088068&partnerID=8YFLogxK

U2 - 10.3749/canmin.46.4.843

DO - 10.3749/canmin.46.4.843

M3 - Article

AN - SCOPUS:56649088068

VL - 46

SP - 843

EP - 860

JO - Canadian Mineralogist

JF - Canadian Mineralogist

SN - 0008-4476

IS - 4

ER -

ID: 28660829