Lead–lead dating
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Lead–lead dating is a method for dating geological samples, normally based on 'whole-rock' samples of material such as granite. For most dating requirements it has been superseded by uranium–lead dati
Iron meteorite found in Canyon Diablo
Figure 1. Pb–Pb isochron diagram
Pb–Pb isochrons for the oldest known material in the Solar System
A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The f
Lead–lead dating
…two stony meteorites (Nuevo Laredo and Forest City) from initial lead isotope ratios matching those of the Canyon Diablo iron meteorite. Chondrules and calcium–aluminium-rich inclusions (CAIs) are spherical particles that make up chondritic meteorites and are believed to be the oldest objects in the Solar System. Hence precise dating…
Chondrite meteorite with calcium–aluminium-rich inclusions seen as white specks