![]() Chemical abrasion (CA) is a routine step prior to thermal ionization mass spectrometry (TIMS) dating of zircon to remove radiation-damaged parts of grains that may have experienced open system behavior and loss of radiogenic Pb. However, for zircons compromised by open system behavior, achieving robust dates can be difficult. ![]() ![]() ![]() Zircon geochronology is a critical tool for establishing geologic ages and time scales of processes in the Earth's crust.
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