When Pleistocene glaciers receded about 15, 000 years ago, glacial debris such as till was left behind to cover most of the area that would become the island.

When glaciers covering the north of Britain melted at the end of the last ice age, two things happened to create the Solent.

When not erupting Hekla is often covered with snow and small glaciers, it is also unusually aseismic with activity only starting 30 – 80 minutes before an eruption.

When the vast glaciers of the north retreated, the left numerous dry river channels crisscrossing the Llano Estacado.

When the Earth's climate cools, a greater proportion of water is stored on land masses in the form of glaciers, snow, etc.

When glaciers of the fourth ice age retreated from the northeast corner of New York State 125, 000 years ago, they left behind of forested wetlands now known as the Bergen Swamp.

When the glaciers of the north of the island of Great Britain melted, the south of England sank slightly, flooding the Solent valley and Southampton Water to form their characteristic rias ( flooded estuaries ).

When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial or fluvioglacial is used.

When the glaciers melted the lake filled with the meltwater, which was held in by moraine ( rock material ) deposited by the glaciers.

When the glaciers retreated, the gap assumed its present form.

When warm air from arid regions meets chilled air from glaciers, it creates cloudy, cool, rainy weather beyond the terminus of the glacier.

When the last ice age ended 12, 000 years ago, those glaciers retreated upslope past the elevation of the current caldera's rim.

When the Great Salt Lake was a freshwater lake, Lake Bonneville, a significant source of water was mountain glaciers.

When enough snow accumulates it can flow out the opening of the bowl and form valley glaciers which may be several kilometers long.

When skiing on glaciers it is wise for the party to wear harnesses, carry crevasse-rescue gear, and sometimes rope together to allow crevasse rescue techniques to be employed.

When lava flows were erupted from Tuber Hill, they interacted with the valley-filling glaciers on its southern flank and produced a glacial meltwater lake.

“ Geologically they are originally part of the main land at the edge of the great riff or fault which formed the depression to which the waters of Lake Superior collected .” When the glaciers melted, waves from the waters of Lake Superior caused erosion that formed the islands.

When the valley was filled with ice, glaciers from the mountains ( the Selkirks and Purcells ) fed the valley's ice mass.

When this came close to occurring during the events of Sourcery, the Ice Giants, described as huge beings made of ice with tiny, coal-like eyes and riding tame glaciers, hurtled down towards the civilised world.

When the glaciers retreated, the land mass rose ( post-glacial rebound ), the clay was exposed, and formed the soil mass for new vegetation.

When the glaciers receded, plants and animals spread rapidly into the newly opened areas.

When the ice finally receded from the St. Lawrence valley, the outlet was below sea level, and for a short time the lake became a bay of the Atlantic Ocean, in association with the Champlain Sea.

When Calvi's body was found, the level of the Thames had receded with the tide, giving the scene the appearance of a suicide by hanging, but at the exact time of his death, the place on the scaffolding where the rope had been tied could have been reached by a person standing in a boat.

When it receded it left low areas of decayed vegetation ( muskeg ); as a result, three-quarters of northern Koochiching are underlain with 2 to 50 feet of peat.

When the waters finally receded, it was not clear if Leavenworth would be occupied again.

When the oil boom receded, many land owners returned to truck farming, dairy farming and the timber industry.

When he stepped forward toward it, it receded and then faded away.

When seas receded, terrestrial sedimentary deposits and erosion dominated.

When the floodwater receded the barge was refloated and beached downstream near Fig Tree Pocket to be cut up for scrap.

When the ice sheet receded for the last time, it left a-long postglacial lake called Lake McConnell, of which Great Bear, Great Slave and Athabasca Lakes are remnants.

When the Nile had receded from flood stage, Faraz Pasha had opened the river gates and let the Ansār in.

When the water lines receded, the first Squamish came to be.

When the blood has receded, the term " blood feather " is no longer synonymous with " pin feather " – it can only be referred to as a pin feather.

When the waters receded, around September or October, they left behind a rich alluvial deposit of exceptionally fertile black silt over the croplands.

When Doyle viewed the falls, the path ended very close to the falls, close enough to touch it, yet over the hundred years after his visit, the pathway has become unsafe and slowly eroded away, and the falls have receded further back into the gorge.

When the threat of invasion receded, the area served by the Southern Railway became the marshalling area for troops preparing to invade Normandy in Operation Overlord, and once again the railway played its part by providing a link in the logistics chain.

When the region warmed at the end of the ice age, the glacier melted and receded North, leaving behind a drainage ditch and features such as Sifton Bog.

When the glacier retreated from the St Lawrence Valley the shoreline receded to a much shallower level than today's lake, as it takes time for land that had been under a heavy glacier to rebound.

When the water receded, it left behind a flat, sandy wetland surrounded by low hills.

When the floodwater receded the barge was refloated and beached downstream to be cut up for scrap.

When the lake had receded lower than the present-day reservoir, by about 23, 000 years ago, animals such as camels, horses, rabbits, and squirrels would drink from the river, and some of their fossils have been found about north of the dam.