Considerations in zircon geochronology by SIMS

TR Ireland, IS Williams - Reviews in mineralogy and …, 2003 - pubs.geoscienceworld.org
Secondary ion mass spectrometry (SIMS) is a versatile technique for measuring the
chemical and isotopic composition of solid materials on a scale of a few microns. A beam of …

U–Th–Pb zircon geochronology by ID-TIMS, SIMS, and laser ablation ICP-MS: Recipes, interpretations, and opportunities

U Schaltegger, AK Schmitt, MSA Horstwood - Chemical Geology, 2015 - Elsevier
The chronologic record encoded in accessory minerals, based on the radioactive decay of U
and Th, is indispensable to extract quantitative process rates over timescales encompassing …

Plešovice zircon—a new natural reference material for U–Pb and Hf isotopic microanalysis

J Sláma, J Košler, DJ Condon, JL Crowley, A Gerdes… - Chemical geology, 2008 - Elsevier
Matrix-matched calibration by natural zircon standards and analysis of natural materials as a
reference are the principle methods for achieving accurate results in microbeam U–Pb …

Community‐derived standards for LA‐ICP‐MS U‐(Th‐) Pb geochronology–Uncertainty propagation, age interpretation and data reporting

MSA Horstwood, J Košler, G Gehrels… - Geostandards and …, 2016 - Wiley Online Library
The LA‐ICP‐MS U‐(Th‐) Pb geochronology international community has defined new
standards for the determination of U‐(Th‐) Pb ages. A new workflow defines the appropriate …

Improved 206Pb/238U microprobe geochronology by the monitoring of a trace-element-related matrix effect; SHRIMP, ID–TIMS, ELA–ICP–MS and oxygen isotope …

LP Black, SL Kamo, CM Allen, DW Davis, JN Aleinikoff… - Chemical …, 2004 - Elsevier
Precise isotope dilution–thermal ionisation mass spectrometry (ID–TIMS) documentation is
given for two new Palaeozoic zircon standards (TEMORA 2 and R33). These data, in …

Qinghu zircon: A working reference for microbeam analysis of U-Pb age and Hf and O isotopes

XH Li, GQ Tang, B Gong, YH Yang, KJ Hou… - Chinese Science …, 2013 - Springer
Zircon is the most useful mineral for studies in U-Pb geochronology and Hf and O isotope
geochemistry. Matrix effect is a major problem of the microbeam techniques such as SIMS …

Precise determination of Phanerozoic zircon Pb/Pb age by multicollector SIMS without external standardization

XH Li, Y Liu, QL Li, CH Guo… - Geochemistry …, 2009 - Wiley Online Library
Zircon has long been recognized as the best geochronometer and the most important
timekeeper in geosciences. Modern microbeam techniques such as SIMS and LA‐ICPMS …

[HTML][HTML] Metrology and traceability of U–Pb isotope dilution geochronology (EARTHTIME Tracer Calibration Part I)

DJ Condon, B Schoene, NM McLean… - … et Cosmochimica Acta, 2015 - Elsevier
Abstract Mixed 235 U–233 U–205 Pb (–202 Pb) tracers for U–Pb isotope-dilution isotope
ratio mass spectrometry have been prepared under the auspices of the EARTHTIME …

Reexamination of 2.5-Ga “whiff” of oxygen interval points to anoxic ocean before GOE

SP Slotznick, JE Johnson, B Rasmussen, TD Raub… - Science …, 2022 - science.org
Transient appearances of oxygen have been inferred before the Great Oxygenation Event
(GOE)[∼ 2.3 billion years (Ga) ago] based on redox-sensitive elements such as Mo and S …

U–Pb and Th–Pb dating of apatite by LA-ICPMS

DM Chew, PJ Sylvester, MN Tubrett - Chemical Geology, 2011 - Elsevier
Apatite is a common U-and Th-bearing accessory mineral in igneous and metamorphic
rocks, and a minor but widespread detrital component in clastic sedimentary rocks. U–Pb …