![]() “This was the singular most powerful, most important climate event in human history. The team hopes that data derived from the rock can tell them when the ice melted. “This is the nexus of climate, humans, and geology, and it is all happening right here.” ![]() He’s a glacial geologist from the University of Maine, and he and his team are here to collect the surface layer of granite boulders implanted in those moraines that formed at the margins of the glacier. Aaron Putnam is an hour behind them, hiking with a team of students, research assistants, and local guides. Up-valley, a team of men on horseback walk along a thin trail leading camels, carrying supplies for a month-long science expedition - drills, GPS units, and a carcass of a freshly slaughtered sheep. Bands of early Turkic, Eurasian, and Mongol people came and left, nomadic groups who left burial mounds, memorials, and petroglyphs.Īnd now, in 2016, a different group is trudging up this valley wearing colorful jackets and carrying the latest technology. Plants began to grow, and the grass fed newly arrived animals - yak, goats, and sheep, herded there by people who, like the vanished glaciers, have left signs of their own. Over millennia, these jagged landforms slowly weathered. ![]() As the ice receded, gray till, sediment, and boulders remained in the form of moraine ridges that describe where the glaciers once sat. ![]()
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