Monday, January 19, 2015

Items Lost From Stone Age Found in Melting Glaciers

An archaeologist holds a 5,400-year-old arrowhead found at a melting glacier site. (photo: ScienceNordic)

Items Lost From Stone Age Found in Melting Glaciers

By Marianne Nordahl, ScienceNordic
17 January 15

Around 7,000 years ago the Earth was enjoying a warm climate. Now glaciers and patches of perennial ice in the high mountains of Southern Norway have started to melt again, revealing ancient layers.

“Actually we should be slowly approaching a new ice age. But in the past 20 years we have witnessed artefacts turning up in summer from increasingly deeper layers of the glaciers,” says Lars Pilø.

He is an archaeologist working for Oppland County, and has for many years done fieldwork in glaciers and ice patches, finding things our ancestors discarded or lost.

The summer of 2014 was hectic in this respect. In Oppland County alone, Pilø and his colleagues found 400 objects, now emerged from the deepfreeze.

Among these were a horse skull and hiking staffs from the Viking Age. An arrow shaft found by the archaeologists is from the Stone Age.

An ancient route over the mountains once passed by the glacier where Lars Pilø and his colleagues conducted field work. People crossed the mountains with livestock, and went back and forth to their high summer farms – or simply travelled from one place to another. They have left a wide array of artefacts in their wake over the centuries, to the delight of 21st century archaeologists.

“We often find things associated with hunting. There are also ordinary objects such as mittens and shoes and the skeletons of horses that died on the trek across the mountains. This makes it a real thrill,” says Pilø.

Expanding field of archeology

Such objects reveal copious information about the people who lived in Norway as far back as the Stone Age. The material is emerging quickly so archaeologists have to work fast to gather them and preserve them as well as nature has done for so long.

Such artefacts from ancient mountain people are also being found in the Rocky Mountains, the Andes and the Alps.

Science recently featured a lengthy article on the new archaeological field based on retreating glaciers and melting snow and ice patches. This is becoming a new field of specialisation among archaeologists. They have their own conferences and in November 2014 the Journal of Glacial Archaeology was launched.

Future editions of this newcomer will include many descriptions of archaeological discoveries from Norwegian glaciers and ice patches that have preserved objects nicely for up to several thousand years. In Oppland County alone, some 2,000 artefacts have melted out of the ice.

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