November 2, 2022 – Gary Griggs Responds:
Much of the Isle of Skye is composed of basaltic lava flows, erupted during the earliest phase of volcanic activity in the area – known as the Skye Main Lava Series. These were erupted from early fissure eruptions and not from the volcanoes above the main Cuillin Centre. While rocks up to 2.8 billion years old are found on the Skye, the lava exposed was extruded from one of the many volcanic centers of the North Atlantic Igneous Province during the Paleocene and Early Eocene epochs, about 45 to 60 million years ago, and cover most of northern Skye.