glacial polish

Granitic surfaces in this region that have been exfoliated are identified by their lack of glacial polish.

The air is cold but still, and he can hear Hans and Frances inside their tent, arguing about glacial polish.

That much time would take care of any of the superficial signs, I should think, glacial polish or moraines or nanatuks.

Glacial polish is a characteristic of rock surfaces where glaciers have passed over bedrock, typically granite or other hard igneous or metamorphic rock.

On the east coast of the Hudson Bay, glacial polishes and striations were formed from the erosion of glacial ice on exposed rock.

Glacial polish, striations and grooves commonly found on erratics of this size have for the most part been effaced by the normal process of decomposition called weathering.

A glacier later removed much of this mass of rock and left a polished surface on top of the columns with very noticeable glacial striations and glacial polish.

"Py-we-ack" in the native language means "glistening rocks" and the Indians applied it to both the creek and Tenaya Lake, due to the abundance of glacial polish in the upper Tenaya basin.

They had found no glacial polish, even in the most wind-protected sections of the U-shaped valleys; no moraines, lateral or butt; no signs of plucking, or of transition lines where nanatuks would have stuck out of even the highest levels of ancient ice.