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Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania. / Perova, E. N.; Zaitsev, A. N.

In: Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, Vol. 145, No. 3, 01.01.2016, p. 1-13.

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

Harvard

Perova, EN & Zaitsev, AN 2016, 'Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania', Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, vol. 145, no. 3, pp. 1-13.

APA

Perova, E. N., & Zaitsev, A. N. (2016). Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, 145(3), 1-13.

Vancouver

Perova EN, Zaitsev AN. Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva. 2016 Jan 1;145(3):1-13.

Author

Perova, E. N. ; Zaitsev, A. N. / Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania. In: Zapiski Rossiiskogo Mineralogicheskogo Obshchestva. 2016 ; Vol. 145, No. 3. pp. 1-13.

BibTeX

@article{17f0efdbace04016bbd72d24f89ab764,
title = "Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania",
abstract = " Carbonatites from the Oldoinyo Lengai volcano, northern Tanzania, are unstable under normal atmospheric conditions. During carbonatite interaction with water the major minerals gregoryite Na 2 (CO 3 ), nyerereite Na 2 Ca(CO 3 )2 and sylvite KCl are dissolved and replaced by secondary low-temperature minerals thermonatrite Na 2 (CO 3 )·H 2 O, trona Na3(CO 3 )(HCO 3 )·2H 2 O, nahcolite Na(HCO 3 ), pirssonite Na 2 Ca(CO 3 )2 ·2H 2 O, calcite Ca(CO 3 ) and shortite Na 2 Ca 2 (CO 3 )3. Thermodynamic calculations show that the formation of secondary minerals within Oldoinyo Lengai carbonatites are controlled by pH of pore solution, H 2 O and CO 2 fugacity and the ratio of Ca and Na activities in the system Na 2 O-CaO-CO 2 -H 2 O. ",
keywords = "Calcite, Carbonatites, Gregoryite, Low-temperature alteration, Nyerereite, Oldoinyo Lengai volcano, Pirssonite",
author = "Perova, {E. N.} and Zaitsev, {A. N.}",
year = "2016",
month = jan,
day = "1",
language = "English",
volume = "145",
pages = "1--13",
journal = "ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА",
issn = "0869-6055",
publisher = "Издательство {"}Наука{"}",
number = "3",

}

RIS

TY - JOUR

T1 - Thermodynamic analysis of stability of secondary minerals in altered carbonatites of the Oldoinyo Lengai volcano, Northern Tanzania

AU - Perova, E. N.

AU - Zaitsev, A. N.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Carbonatites from the Oldoinyo Lengai volcano, northern Tanzania, are unstable under normal atmospheric conditions. During carbonatite interaction with water the major minerals gregoryite Na 2 (CO 3 ), nyerereite Na 2 Ca(CO 3 )2 and sylvite KCl are dissolved and replaced by secondary low-temperature minerals thermonatrite Na 2 (CO 3 )·H 2 O, trona Na3(CO 3 )(HCO 3 )·2H 2 O, nahcolite Na(HCO 3 ), pirssonite Na 2 Ca(CO 3 )2 ·2H 2 O, calcite Ca(CO 3 ) and shortite Na 2 Ca 2 (CO 3 )3. Thermodynamic calculations show that the formation of secondary minerals within Oldoinyo Lengai carbonatites are controlled by pH of pore solution, H 2 O and CO 2 fugacity and the ratio of Ca and Na activities in the system Na 2 O-CaO-CO 2 -H 2 O.

AB - Carbonatites from the Oldoinyo Lengai volcano, northern Tanzania, are unstable under normal atmospheric conditions. During carbonatite interaction with water the major minerals gregoryite Na 2 (CO 3 ), nyerereite Na 2 Ca(CO 3 )2 and sylvite KCl are dissolved and replaced by secondary low-temperature minerals thermonatrite Na 2 (CO 3 )·H 2 O, trona Na3(CO 3 )(HCO 3 )·2H 2 O, nahcolite Na(HCO 3 ), pirssonite Na 2 Ca(CO 3 )2 ·2H 2 O, calcite Ca(CO 3 ) and shortite Na 2 Ca 2 (CO 3 )3. Thermodynamic calculations show that the formation of secondary minerals within Oldoinyo Lengai carbonatites are controlled by pH of pore solution, H 2 O and CO 2 fugacity and the ratio of Ca and Na activities in the system Na 2 O-CaO-CO 2 -H 2 O.

KW - Calcite

KW - Carbonatites

KW - Gregoryite

KW - Low-temperature alteration

KW - Nyerereite

KW - Oldoinyo Lengai volcano

KW - Pirssonite

UR - http://www.scopus.com/inward/record.url?scp=85019522893&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85019522893

VL - 145

SP - 1

EP - 13

JO - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА

JF - ЗАПИСКИ РОССИЙСКОГО МИНЕРАЛОГИЧЕСКОГО ОБЩЕСТВА

SN - 0869-6055

IS - 3

ER -

ID: 42298879