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Quartzite. Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone. [1][2] Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and ...
It consists of a white massive quartzite. The Penas and Vidrias area, close to the western boundary of the Cantabrian zone has a complete succession of Ordovician deposits. Black shales from Llanvirnian times are found in the Central Coal Basin eastern side. But mostly in the Ordovician Period, this zone was above water and eroding.
The Burren (/ ˈ b ʌr ə n / BURR-ən; Irish: Boirinn, meaning 'rocky district') [1] is a karst/glaciokarst landscape centred in County Clare, on the west coast of Ireland. [2] It measures around 530 square kilometres (200 sq mi), within the circle made by the villages of Lisdoonvarna, Corofin, Gort and Kinvara. [3]
The geology of Ireland consists of the study of the rock formations on the island of Ireland. It includes rocks from every age from Proterozoic to Holocene and a large variety of different rock types is represented. The basalt columns of the Giant's Causeway together with geologically significant sections of the adjacent coast have been ...
During the Last Glacial Maximum, [5] (between about 26,000 and 20,000 years BP) ice sheets more than 3,000 m (9,800 ft) thick scoured the landscape of Ireland. By 24,000 years ago they extended beyond the southern coast of Ireland; but by 16,000 years ago the glaciers had retreated so that only an ice bridge remained between Ireland and Scotland.
The Wicklow Mountains are the largest area of continuous high ground in Ireland, having an unbroken area of over 500 km 2 (190 sq mi) above 300 metres (980 ft). [7] They occupy the centre of County Wicklow and extend into Counties Dublin, Carlow and Wexford. [8] The general direction of the mountain ranges is from north-east to south-west. [9]
The Uragh Stone Circle is a small Bronze Age axial stone circle. It is located on the Beara Peninsula, [1] near Gleninchaquin Park, County Kerry, Ireland. Situated between Lough Inchiquin and Lough Cloonee Upper, the site consists of four low megaliths situated next to a large standing stone. Altogether, there are two portal stones, two side ...
They were centres of religion, art (insular art), and learning. The sites are Clonmacnoise, Durrow, Glendalough, Inis Cealtra, Kells (pictured), and Monasterboice. [13] The Royal Sites of Ireland: Cashel, Dún Ailinne, Hill of Uisneach, Rathcroghan Complex, and Tara Complex. several sites.