Granite and basalt weathering lead to grain-size dependent Hf–Nd isotopic decoupling.

Hf–Nd isotopes in river clays define a new Clay Array, with class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0012821X16000170&_mathId=si1.gif&_user=111111111&_pii=S0012821X16000170&_rdoc=1&_issn=0012821X&md5=5eead65842f164c03e2e81cf69f75704" title="Click to view the MathML source">ε_Hf=0.78×ε_Nd+5.23class="mathContainer hidden">class="mathCode">${\epsilon }_{\mathrm{Hf}}=0.78\times {\epsilon }_{\mathrm{Nd}}+5.23$.

Distribution Hf–Nd isotopes in clays is mainly controlled by climate and lithology.

Utility of the Hf–Nd isotope pair proxy as palaeoenvironmental tracers.