Detrital zircon geochronology Wikipedia
Detrital zircon Origin. Detrital zircons are part of the sediment derived from weathering and erosion of preexisting rocks. Since zircons are heavy and highly resistant at Earth''s surface, many zircons are transported, deposited and preserved as detrital zircon grains in sedimentary rocks. ( See Figure 2, note that the diagram is used for concept illustration.