Lithium isotope and geochemical data supporting the manuscript "Lithium isotopes reveal enhanced clay formation and incongruent silicate weathering during the Ordovician–Silurian transition"

This datset provides supporting data for the manuscript entitled "Lithium isotopes reveal enhanced clay formation and incongruent silicate weathering during the Ordovician–Silurian transition". The dataset includes lithium isotope compositions, total organic carbon (TOC), carbon isotope compositions, and elemental concentrations data from Ordovician–Silurian marine shale samples in South China, as well as compiled lithium isotope data from previoulsy published during the Ordovician–Silurian transition.