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This is a list of Global Boundary Stratotype Sections and Points. Since 1977, Global Boundary Stratotype Sections and Points (abbreviated GSSPs) are internationally agreed upon reference points on stratigraphic sections of rock which define the lower boundaries of stages on the geologic time scale .
Because defining a GSSP depends on finding well-preserved geologic sections and identifying key events, this task becomes more difficult as one goes farther back in time. Before 630 million years ago, boundaries on the geologic timescale are defined simply by reference to fixed dates, known as "Global Standard Stratigraphic Ages" (GSSAs).
Geological Survey Ireland produces maps, reports and databases, and acts as a knowledge centre and project partner in a number of aspects of Irish geology. [ 3 ] The organisation managed the Irish National Seabed Survey (INSS, 1999–2005), which on completion was the world's largest civilian marine mapping programme.
Bedrock geological map of Ireland. Layers of Upper Carboniferous sedimentary rocks, Loop Head, County Clare. 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 Caha Mountains (An Cheacha in Irish) are a range of low sandstone mountains on the Beara peninsula in south-west County Cork, Ireland. The highest peak is Hungry Hill, at 685 m (2,247 ft). Other notable peaks include Knocknagree, Sugarloaf Mountain, Eskatarriff, Knocknaveacal, Derryclancy, Nareera, Killane Mountain and Baurearagh Mountain. [3]
"Ben" is an anglicized form of the Irish word binn, meaning "peak". [3] According to Irish academic Paul Tempan, [c] "An odd thing about the Twelve Bens of Connemara is that nobody seems to know exactly which are the twelve peaks in question", and noting that there are almost 20 peaks with "Ben" or "Binn" in their name.
Cadair Idris or Cader Idris is a mountain in the Meirionnydd area of Gwynedd, Wales.It lies at the southern end of the Snowdonia National Park near the town of Dolgellau.The peak, which is one of the most popular in Wales for walkers and hikers, [1] is composed largely of Ordovician igneous rocks, with classic glacial erosion features such as cwms, moraines, striated rocks, and roches moutonnées.
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