• Local GAPs

Slide Show

Bartestree Dolerite intrusion

Age: Uncertain (Permian-Carboniferous)

Classification: Igneous

Overview

There is a dyke-like intrusion at Lowe’s Hill Quarry near Bartestree. Radiometric dating gives ages of 260 and 286 million years. The dyke has been intruded in three phases; green dolerite without olivine; darker and coarser-grained teschenite (olivine-analcime bearing dolerite); and basalt which forms the central and major part of the intrusion.

Most of this dyke has now been quarried away.

Sites

Bartestree Quarry, Herefordshire


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