Aragonite-calcite-dolomite relationships in UHPM polycrystalline carbonate inclusions from the Kokchetav Massif, northern Kazakhstan

被引：21

作者：

Korsakov, Andrey V. ^{[1
]}

De Gussem, Kris ^{[2
]}

Zhukov, Vladimir P. ^{[3
]}

Perraki, Maria ^{[4
]}

Vandenabeele, Peter ^{[5
]}

Golovin, Aleksander V. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, Novosibirsk 630090, Russia

[2] Univ Ghent, Dept Analyt Chem, Raman Res Grp, B-9000 Ghent, Belgium

[3] Russian Acad Sci, Siberian Branch, Inst Computat Technol, Novosibirsk 630090, Russia

[4] Natl Tech Univ Athens, Sch Min & Met Engn, GR-15773 Athens, Greece

[5] Univ Ghent, Dept Archaeol & Ancient Hist Europe, B-9000 Ghent, Belgium

来源：

EUROPEAN JOURNAL OF MINERALOGY | 2009年 / 21卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

aragonite; calcite; diamond; UHPM petrology; Raman spectroscopy; SEM; cathodoluminescence; SUBDUCTED CONTINENTAL-CRUST; PRESSURE METAMORPHIC ROCKS; COESITE INCLUSIONS; EXPERIMENTAL CONSTRAINTS; VIBRATIONAL-SPECTRA; SYSTEM CACO3-MGCO3; RAMAN-SPECTROSCOPY; DIAMOND FORMATION; PLUS MAGNESITE; WESTERN ALPS;

D O I：

10.1127/0935-1221/2009/0021-1992

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

The presence of aragonite in polycrystalline carbonate inclusions in garnet in diamond-grade metamorphic rocks from the Kokchetav Massif, N. Kazakhstan was identified for the first time by means of Raman analyses and mapping, cathodoluminescence images and optical and scanning electron microscopy. Aragonite appears within the inclusions as dirty, chaotically oriented materials surrounded by a clean monocrystalline calcite shell; the grain boundary between the host-garnet and the aragonite-bearing inclusions is often characterized by a wavy or amoeboid shape; no cracks occur around the aragonite-bearing inclusior s; no significant shift in the main aragonite Raman band was measured. These observations indicate that residual pressure within the inclusion is minor. These features are inconsistent with an origin of aragonite at peak metamorphic conditions (6 GPa) by decomposition of dolomite.

引用

页码：1301 / 1311

页数：11

共 43 条

[41] Thermobaric structure of the Kokchetav ultrahigh-pressure-high-pressure massif deduced from a north-south transect in the Kulet and Saldat-Kol regions, northern Kazakhstan
Ota, T
Terabayashi, M
Parkinson, CD
Masago, H
ISLAND ARC, 2000, 9 (03) : 328 - 357
[42] Tracing high-pressure metamorphism in marbles:: Phase relations in high-grade aluminous calcite-dolomite marbles from the Greek Rhodope massif in the system CaO-MgO-Al2O3-SiO2-CO2 and indications of prior aragonite
Proyer, A.
Mposkos, E.
Bazicitis, I.
Hoinkes, G.
LITHOS, 2008, 104 (1-4) : 119 - 130
[43] Maruyamaite, K(MgAl2)(Al5Mg)Si6O18(BO3)3(OH)3O, a potassium-dominant tourmaline from the ultrahigh-pressure Kokchetav massif, northern Kazakhstan: Description and crystal structure
Lussier, Aaron
Ball, Neil A.
Hawthorne, Frank C.
Henry, Darrell J.
Shimizu, Rentaro
Ogasawara, Yoshihide
Ota, Tsutomu
AMERICAN MINERALOGIST, 2016, 101 (1-2) : 355 - 361

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