Chemical analysis of trace elements at the nanoscale in samples recovered from laser-heated diamond anvil cell experiments

被引：3

作者：

Blanchard, Ingrid ^{[1
,3
]}

Petitgirard, Sylvain ^{[2
,3
]}

Laurenz, Vera ^{[3
]}

Miyajima, Nobuyoshi ^{[3
]}

Wilke, Max ^{[1
]}

Rubie, David C. ^{[3
]}

Lobanov, Sergey S. ^{[4
]}

Hennet, Louis ^{[5
,6
]}

Morgenroth, Wolfgang ^{[1
,7
]}

Tucoulou, Remi ^{[7
]}

Bonino, Valentina ^{[7
]}

Zhao, Xuchao ^{[8
]}

Franchi, Ian ^{[8
]}

机构：

[1] Univ Potsdam, Inst Geowissensch, D-14476 Potsdam, Germany

[2] Swiss Fed Inst Technol, CH-8092 Zurich, Switzerland

[3] Univ Bayreuth, Bayer Geoinst, D-95440 Bayreuth, Germany

[4] GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany

[5] CNRS, ICMN, F-45071 Orleans, France

[6] Univ Orleans, F-45071 Orleans, France

[7] ESRF European Synchrotron, F-38043 Grenoble, France

[8] Open Univ, Sch Phys Sci, Milton Keynes MK7 6AA, Bucks, England

来源：

PHYSICS AND CHEMISTRY OF MINERALS | 2022年 / 49卷 / 06期

关键词：

NanoSIMS; Nano-XRF; Diamond anvil cell; Focused ion beam; HIGH-PRESSURE; SIDEROPHILE ELEMENTS; SILICATE MELTS; CORE FORMATION; TERRESTRIAL PLANETS; HIGH-TEMPERATURES; METAL; IRON; ACCRETION; EARTH;

D O I：

10.1007/s00269-022-01193-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High pressure and high temperature experiments performed with laser-heated diamond anvil cells (LH-DAC) are being extensively used in geosciences to study matter at conditions prevailing in planetary interiors. Due to the size of the apparatus itself, the samples that are produced are extremely small, on the order of few tens of micrometers. There are several ways to analyze the samples and extract physical, chemical or structural information, using either in situ or ex situ methods. In this paper, we compare two nanoprobe techniques, namely nano-XRF and NanoSIMS, that can be used to analyze recovered samples synthetized in a LH-DAC. With these techniques, it is possible to extract the spatial distribution of chemical elements in the samples. We show the results for several standards and discuss the importance of proper calibration for the acquisition of quantifiable results. We used these two nanoprobe techniques to retrieve elemental ratios of dilute species (few tens of ppm) in quenched experimental molten samples relevant for the formation of the iron-rich core of the Earth. We finally discuss the applications of such probes to constrain the partitioning of trace elements between metal and silicate phases, with a focus on moderately siderophile elements, tungsten and molybdenum.

引用

页数：16

共 45 条

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