Ancient ice samples from highest mountain in Canada may reveal past climate secrets & More News Here

Ice core samples from Canada’s highest mountain, now in storage on the University of Alberta, may present scientists with solutions about Earth’s climate 1000’s of years in the past.

The samples, from an ice core drilled 327 metres deep on Mount Logan, Yukon, are in 35 cardboard packing containers, every about the dimensions of a mini fridge.

The packing containers arrived in Edmonton final week and are actually in freezer storage on the U of A’s division of Earth and Atmospheric Sciences.

Alison Criscitiello, a National Geographic Society Explorer and director of the Canadian Ice Core Lab on the U of A, mentioned the ice might be 30,000 years outdated, “which is very unusual for ice outside the polar regions.

“It’s very onerous to discover a place like this that hasn’t been impacted by soften,” Criscitiello told CBC’s Edmonton AM on Thursday.

“There’s simply a lot data locked up in this ice core.

“It’s endless. We’re going to measure tens and tens of different elements and major ions and species in this core, all giving us different clues into past climate.”

Criscitiello mentioned she’s excited to start out engaged on the ice core samples, which have been collected after 11 days of drilling on the just about 6,000 metre-tall mountain.

“The ice seems so pure that it’s almost blue,” she mentioned. 

Getting thus far has been two years in the making. In May 2021, Criscitiello climbed the mountain to put groundwork for the drilling.

Then, in the primary week of May this 12 months, she climbed the mountain once more for the precise drill work. 

The excessive altitude, excessive temperatures and wind made all the course of “very, very difficult,” she mentioned.

“It was a logistical nightmare.”

She and her colleagues obtained provides and tools, together with the drill, despatched to the positioning by way of helicopter. It took the helicopter a number of flights to get Criscitiello and her workforce every thing they wanted, she mentioned.

The new ice core samples will change ones misplaced because of a freezer malfunction in 2017.

Criscitiello mentioned drilling on Logan this 12 months was all the time the plan as a result of the samples misplaced in 2017 — collected from the mountain in 2002 — have been taken after drilling to a depth of 181 metres. Those samples have been 16,000 years outdated. 

Criscitiello mentioned scientists knew even older non-Arctic ice existed deeper into the mountain. The melting incident simply fast-tracked the re-drilling course of, she mentioned.

Now that the ice samples are in her care, she and her colleagues have a protracted listing of information they plan to gather, together with forest fireplace historical past, volcanic ash fallout and temperatures in the past.

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