Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/134768
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Type: | Journal article |
Title: | In situ Lu-Hf phosphate geochronology: progress toward a new tool for space exploration |
Author: | Glorie, S. Burke, T. Hand, M. Simpson, A. Gilbert, S. Wade, B. |
Citation: | Geoscience Frontiers, 2022; 13(3):1-4 |
Publisher: | Elsevier BV |
Issue Date: | 2022 |
ISSN: | 1674-9871 1674-9871 |
Statement of Responsibility: | Stijn Glorie, Thomas Burke, Martin Hand, Alexander Simpson, Sarah Gilbert, Benjamin Wade |
Abstract: | Geochronology is fundamental to understanding planetary evolution. However, as space exploration continues to expand, traditional dating methods, involving complex laboratory processes, are generally not realistic for unmanned space applications. Campaign-style planetary exploration missions require dating methods that can (1) rapidly resolve age information on small samples, (2) be applied to minerals common in mafic rocks, and (3) be based on technologies that could be installed on future rover systems. We demonstrate the application of rapid in situ microanalytical Lu–Hf phosphate geochronology using samples of pallasite meteorites, which are representative examples of the deep interiors of differentiated planetoids that are generally difficult to date. Individual pallasites were dated by laser ablation tandem mass-spectrometry (LA-ICP-MS/MS), demonstrating a rapid novel method for exploring planetary evolution. Derived formation ages for individual pallasites agree with traditional methods and have <2% uncertainty, opening an avenue of opportunity for remote micro-analytical space exploration. |
Keywords: | Pallasite meteorites; Lu–Hf geochronology; Laser ablation tandem mass-spectrometry; Micro-analytical planetary exploration |
Description: | Available online 22 February 2022 |
Rights: | © 2022 China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
DOI: | 10.1016/j.gsf.2022.101375 |
Grant ID: | http://purl.org/au-research/grants/arc/DP200101881 |
Published version: | http://dx.doi.org/10.1016/j.gsf.2022.101375 |
Appears in Collections: | Geology & Geophysics publications |
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hdl_134768.pdf | Published version | 982.26 kB | Adobe PDF | View/Open |
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