Characterization of zircon reference materials via high precision U–Pb LA-MC-ICP-MS

2017 ◽  
Vol 32 (10) ◽  
pp. 2011-2023 ◽  
Author(s):  
Cristiano Lana ◽  
Federico Farina ◽  
Axel Gerdes ◽  
Ana Alkmim ◽  
Guilherme O. Gonçalves ◽  
...  

Recent improvements in laser ablation and multicollector (MC)-ICP-MS technology offer higher sensitivity, robust stability, and larger dynamic ranges.

2006 ◽  
Vol 7 (8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Dominique Weis ◽  
Bruno Kieffer ◽  
Claude Maerschalk ◽  
Jane Barling ◽  
Jeroen de Jong ◽  
...  

2021 ◽  
Vol 36 (10) ◽  
pp. 2192-2201
Author(s):  
Chao Huang ◽  
Hao Wang ◽  
Hui-Min Yu ◽  
Lan-Ping Feng ◽  
Lie-Wen Xie ◽  
...  

We present Si and Zr isotopic data of SA01 and SA02 zircons via multi-technique analytical methods to evaluate the suitability of the two zircon reference materials for in situ Si and Zr isotopic analysis using fs-LA-MC-ICP-MS.


Geosciences ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 391
Author(s):  
Richter ◽  
Nebel-Jacobsen ◽  
Nebel ◽  
Zack ◽  
Mertz-Kraus ◽  
...  

Monazite is a common accessory phosphate mineral that occurs under a wide range of pressure and temperature conditions in sedimentary, metamorphic and igneous rocks. Monazite contains high amounts of Th and U, rendering single monazite grains suitable for in-situ U-Th/Pb dating using laser ablation inductively-coupled mass spectrometry (LA-ICP-MS). Two key aspects of monazite dating that are critical for accurate age data with maximum precision are (i) optimized instrumental conditions to minimize analytical scatter and (ii) a well characterized reference material to ensure the accuracy of the obtained aged. Here, we analyzed five monazite reference materials (USGS 44069, 94-222, MAdel, Moacir and Thompson Mine Monazite) for their U-Th/Pb ages using LA-ICP-MS technique and applied a variety of laser spot diameters and repetition rates to find the best operational conditions to achieve accurate age data while maintaining maximum precision. We find that a spot diameter of 10 µm and a repetition rate of 10 Hz yield the most precise ages with a deviation of ±2.0% from their respective high-precision U/Pb literature age data. Ages were reproduced in three different LA-ICP-MS laboratories using these parameters. Each reference material was tested for its suitability as a matrix-matched age reference material. For this, a rotating, iterative approach was adopted in which one reference monazite was used as calibration reference material against all others, which were treated as unknowns. The results reveal that USGS 44069, 94-222, Thompson Mine Monazite and MAdel all agree with their respective calculated ages and ID-TIMS reference ages and thus are suggested as suitable calibration reference materials. Moacir, however, appears slightly older than previously suggested (up to 4%), thus, caution is advised here when using Moacir as reference material for U-Th/Pb LA-ICP-MS dating in the absence of further absolute age calibration.


2015 ◽  
Vol 410 ◽  
pp. 223-236 ◽  
Author(s):  
Gary Schudel ◽  
Vivian Lai ◽  
Kathy Gordon ◽  
Dominique Weis

2019 ◽  
Vol 34 (7) ◽  
pp. 1396-1408 ◽  
Author(s):  
Mina W. Tehrani ◽  
Aubrey L. Galusha ◽  
Patrick J. Parsons

Twenty-one laboratories reported results for a suite of elements, with most using ICP-MS after acid digestion of the powdered horn materials.


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