Sentences with phrase «beneath glacial ice»

They used airborne radar soundings and satellite data to show that beneath the glacial ice were valleys so deeply incised that some of them were hundreds of metres below sea level, at distances tens of kilometres from the sea.

The research shows that volcanic eruptions beneath a glacial ice sheet would have created substantial amounts of liquid water on Mars's surface around 210 million years ago.

And Libby himself, when he analyzed wood samples from trees once buried beneath glacial ice, documented that North America's last Ice Age ended approximately 11,000 years ago — not 25,000 years ago as previously believed.

Not exact matches

Mackay explained that we had just been on top of relatively young glacial ice buried beneath the rubble.

The tools were found beneath glacial deposits laid down during a period 450,000 years ago when the region was blanketed in ice, so they must be older than this.

You'll also enjoy a visit to romantic Chillon Castle, a well - preserved, medieval castle on the shores of Lake Geneva.If spectacular scenery is your interest, then you'll be thrilled with the ride on the world - famous Glacier Express train, where you'll travel first - class and have panorama windows to admire the thundering waterfalls, impressive peaks, glacial ice fields, and tiny villages on your way to Zermatt, a picturesque cluster of rustic chalets beneath the majestic Matterhorn.

When a large ice sheet grows in a location, such as happened at the Last Glacial Maximum (LGM) about 20,000 years ago, the weight of the ice deforms the solid Earth beneath it.

Warm ocean water plays a significant role in melting glacial ice from below, and a better mapping of Antarctica's and Greenland's landforms beneath the ice suggests that ocean melting of the glacier fronts may play a more significant role than previously thought as the ice sheets retreat (under a global warming scenario).

Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age — a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial iIce Age — a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial iceice.

Scientists see in present - day West Antarctica that warmer ocean water can also reach beyond ice shelves and infiltrate beneath inland glacial ice.

The rapid melting of Kangerdlugssuaq glacier has produced a special category of earthquake known as a glacialquake.1, 3 Once thought to occur when glacial ice strikes solid earth beneath it, glacialquakes are now attributed to lurching that occurs when parts of the glacier break off (calve) into the ocean.4, 5

This fossilized coral reef was alive about 20,000 years ago, during the height of the last glacial period, a time when Earth was around 9 degrees Fahrenheit (5 degrees Celsius) cooler than it is now, and the city of Chicago was buried beneath an ice sheet almost 2 miles (3 kilometers) thick.