Westfjords, Iceland whole rock elemental and isotopic compositions and zircon ages, compositions, and O and Hf isotopes

Iceland’s oldest silicic rocks provide unique insight into the island’s early crustal evolution. We present new zircon U-Pb ages bolstered with zircon trace element and isotopic compositions, and whole rock Nd, Hf, and Pb isotope compositions, from three silicic magmatic centers—Hrafnsfjörður, Árnes, and Kaldalón—to understand the petrogenesis of large silicic volcanic centers in the northern Westfjords, Iceland.