Exam 14: Glaciers and Glaciation

A glacial landform that forms at the head of glacial valleys or troughs is called a(n)____.

The two major types of glaciers are ____________________ and ____________________.

Where is the largest existing glacier located?

Straight scratches on rock surfaces created by glacial abrasion are known as what?

Glaciers move primarily by ____________________ flow.

The climatic event that began with cooling in about AD 1300 and lasted until the middle 1800s is known as the Little ____________________.

In general,rates of glacial flow are greatest in the zone of ____________________.

How can the boundary between the zones of accumulation and wastage on a glacier be located during the spring and summer?

Is ice a mineral? Explain.

What is a lake formed within a cirque called?

Valleys carved by glaciers are distinctive because they are V-shaped in cross-section.

Finely laminated,alternating light and dark layers of sediment deposited in a glacial lake are known as glacial ____________________.

Basal slip becomes a more important means of glacier movement in warmer months when more meltwater collects at a glacier's base.

The decade from 2000 to 2009 was the hottest on record so far.

Why do continental glaciers generally flow more slowly than valley glaciers?

What are dropstones,and what do they indicate?

How does the water bound in glaciers eventually re-enter the hydrologic cycle?

When snow thaws and refreezes,which results in a loss of air and pore spaces,the result is ____________________.

Briefly explain how a hanging valley forms.

Glacial till is ____.