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265 million years ago central England was part of a vast, hot landscape of shallow lakes in red sandy desert. These conditions produced the red marl that forms the local ‘bedrock’ and gives the soil its distinctive red colour.
Millions of years later, during the Ice Age, a drop in temperatures led to the breaking up and grinding together of rocks by frost action, which is the repeated freezing and thawing of water in rock. During warmer periods meltwater rivers carried gravels from higher land to form the mineral deposits that are worked for aggregates today.
At the end of the ice age thin layers of fine grained sediment were deposited over the gravels to form the soils which enabled plants to grow and farming to take place.
The sand and gravel deposited in the Alrewas area thousands of years ago is quarried by Lafarge for use in construction throughout the region, including homes, schools, hospitals and roads. The land where the National Memorial Arboretum has been established was quarried in the late 1980s and early 1990s.
When the first phase of quarrying ceased, the land was restored using inert wastes such as soils and clays which cannot be recycled. The arboretum’s many groves have been established on this land.
Lafarge will continue to quarry at Alrewas until the work is finished, and will restore the land progressively. The company is proud to have played a part in the development of the Arboretum and surrounding countryside.
In October 2002, the skull of a 40,000 year old woolly rhino was found in Lafarge’s Alrewas Quarry by digger driver Ray Davis. The woolly rhino lived during the middle part of the last major glaciation of the British region, about 30,000 to 60,000 years ago. Other finds at the quarry include remains of woolly mammoth, horse, bison and reindeer. Quarrying is important to archaeologists, who can quickly search for historical artefacts in large areas of land that are being quarried.
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