Exam 14: Glaciers and Glaciation

A dome-shaped ice mass of compacted and recrystallized snow that flows under its own weight and covers less than 50,000 km² of land is called a(n)____________________.

What kind of erosional landforms would you expect to find in a valley that had previously been occupied by a valley glacier?

Sea level has fallen dramatically since the Pleistocene Epoch.

Worldwide, the majority of glaciers are ____.

The zone of wastage is the portion of a glacier where ____________________ exceed ____________________.

The zone of ____________________ is the portion of a glacier where additions exceed losses.

The majority of glaciers on Earth are melting in response to warmer temperatures.

____________________ is a poorly sorted type of drift deposited directly by glacial ice that forms landforms like moraines.

A glacier forms when ____.

What is a glacial erratic, and how can scientists use this feature to learn about a glacier?

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

Mountain valleys subjected to glaciation are typically shaped like ____.

Short-term climatic changes like the Little Ice Age are poorly understood. One hypothesis for why short-term climatic events occur is ____.

Suppose that glacial ice were a rock. What type of rock would it be?

When did the Pleistocene Ice Age end?

Orbital eccentricity refers to ____.

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

Which statement about valley glaciers is true?

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

In the accompanying figure, identify a drumlin, esker, kame, recessional moraine, and terminal moraine. Is this landscape more representative of continental or alpine glaciation and why?