Nine 40Ar/39Ar dates from Carboniferous igneous rocks of the Midland Valley of Scotland

Abstract

This report describes the location and character of ten Carboniferous-Permian igneous rock samples from the Midland Valley of Scotland and the results of 40Ar/39Ar step-heating experiments on nine of the samples to obtain the radiometric age of eruption or emplacement of the rock. The quality of the new radiometric ages are discussed along with their integration with the chronostratigraphy, lithostratigraphy and biostratigraphy of the Midland Valley of Scotland