A brief introduction to the detrital zircon U-Pb and Hf isotopic datasets for mainland China and adjacent regions

Improvements in analytical technique and data processing lead to a large deposit of detrital zircon U-Pb and Hf isotopic data in published journal articles, thesis and reports. With the support of Deep-time Digital Earth Big Science Program, OneSediment Project conducted a team-working effort to assemble the detrital zircon U-Pb and Hf isotopic data for mainland China and adjacent regions. Entity-relationship diagram was constructed for detrital zircon data to determine what information need to be collected. Researchers and students from 13 institutions were organized together to fulfil this task and generated 13 detrital zircon datasets. The assembled datasets totally include 6635 samples and 560,596 analyses. The samples were checked in terms of lithology and stratigraphy according to the latest stratigraphic framework. Collected detrital zircon U-Pb and Hf isotopic data were recalculated for the best U-Pb age and epsilon Hf(t) values. They can be used to track crustal growth, tectonic evolution, provenance analysis and palaeogeographical change in regional and, when combined with other dataset, global scales.