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The British-Irish Ice Sheet (BIIS), [2] a component of which was the Irish Sea Glacier was an ice sheet during the Pleistocene Ice Age that, probably on more than one occasion, flowed southwards from its source areas in Scotland and Ireland and across the Isle of Man, Anglesey and Pembrokeshire. [3]
The population of Ireland at the end of the Bronze Age was probably in excess of 100,000, and may have been as high as 200,000. It is possible that it was not much greater than it had been at the height of the Neolithic. [citation needed] In Ireland, the Bronze Age lasted until c. 500 BC, later than in continental Europe and also Britain. [52]
The receding of the ice after the Younger Dryas cold phase of the Quaternary, around 9700 BC, heralds the beginning of Prehistoric Ireland, which includes the archaeological periods known as the Mesolithic, the Neolithic from about 4000 BC, and the Copper Age beginning around 2500 BC with the arrival of the Beaker Culture.
A chronology of climatic events of importance for the Last Glacial Period, about the last 120,000 years The Last Glacial Period caused a much lower global sea level.. The Last Glacial Period (LGP), also known as the Last glacial cycle, occurred from the end of the Last Interglacial to the beginning of the Holocene, c. 115,000 – c. 11,700 years ago, and thus corresponds to most of the ...
As the ice melted at the end of the last glacial period of the current ice age, sea levels rose, and the land began to tilt in an isostatic adjustment as the huge weight of ice lessened. Doggerland eventually became submerged, cutting off what was previously the British peninsula from the European mainland by around 6500 BCE.
Great Famine of 1315–1317 in Europe; Little Ice Age: Various dates between 1250 and 1550 or later are held to mark the start of the Little ice age, ending at equally varied dates around 1850 1460–1550 Spörer Minimum cold; 1656–1715 Maunder Minimum low sunspot activity; 1790–1830 Dalton Minimum low sunspot activity, cold
The action of the ice during the cold stages was the major factor in bringing the Irish landscape to its current form. [7] [16] Obvious impacts of the ice on the landscape include the formation of glacial valleys such as Glendalough in Wicklow and of corries, or glacial lakes.
The final major cold spell occurred from 25,000 to 18,000 years ago and is known as the Last Glacial Maximum when the Fenno-Scandinavian ice sheet covered much of northern Europe while the Alpine ice sheet occupied significant parts of central-southern Europe. However, there were several less cold periods after this.