Llyn y Fan Fach Geography – Lesson 1.

Slides:

Advertisements

Similar presentations

Corrie, cirque, cwm – hollow where a glacier formed

Advertisements

Glaciation Presentation

Formation of a Corrie.

Glaciation Learning Intentions

Glacial Erosion This type of erosion is called abrasion. Ice

Erosion: Deposition: AIM: Erosional and Depositional systems

By the end of today's lessons you will be able to recognize Arêtes and explain the formation of glacial troughs and hanging valleys. Key Words; Glaciated.

Cold environments.

Core Theme 2. The Natural Environment

Snow collects in hollows, especially on the less sunny north and east facing slopes, turns to glacial ice and moves downwards under the force of gravity.

LITHOSPHERE GLACIATION 1 Glaciation 2 Selkirk High School.

Glaciation revision.

Glacier Erosion  A glacier is a large, moving mass of ice that are found in either high elevations or near the poles.  A very large portion of Canada’s.

Landforms Created by Glaciers

LITHOSPHERE - GLACIATION

I wonder how this valley was formed?

WHAT DO YOU ALREADY KNOW ABOUT THEM ? ANSWER TRUE OR FALSE.

Abrasion In glaciers abrasion occurs when rocks and stones are picked up by the glacier and are rubbed against the bedrock at the bottom and side of the.

 Physical landscapes - land use C2003  Look at Reference Diagram Q1E, Reference Diagram Q1A and the OS map. Give reasons for the pattern of land use.

Glaciers. Geologists define a glacier as any large mass of ice that moves slowly over land. There are two types of glaciers: Continental glaciers Valley.

LITHOSPHERE LANDSCAPE FEATURES RESULTING FROM GLACIAL AND FLUVIOGLACIAL ACTION Glacial Action by iceFluvioglacial Action by Meltwater Erosion Deposition.

Glaciated Landscapes Corrie Deep rounded hollows with a steep back wall. After the ice has melted a lake will be formed behind the rock lip, the lake is.

AIM: How do Glaciers change the landscape? Do Now:

Erosion and Deposition

I wonder how this valley was formed?

Glaciers In this weeks lessons we will be investigating Glaciers and how they erode, transport and deposit material. By the end of today's lesson you will.

GLACIERS Any large mass of ice that moves slowly over land.

Glaciers Chapter 3 Section 4 Pages Objective: Describe the causes and types of glaciers, how they impact land features, and analyze their role.

Lithosphere: Glaciated Uplands 24/08/2010 Processes of erosion recap Corrie formation.

Glacier: Any large mass of ice that moves slowly over land.

Chapter 7.3 Glaciers. Glacier Any large mass of ice that moves slowly over land. Two kinds: – Continental Glaciers – Valley Glaciers.

Landforms of Deposition Key Idea: Distinctive landforms result from different processes. Specification Focus: Landforms resulting from transportation and.

LITHOSPHERE GLACIATION 1 Introduction Higher Geography.

Standard Grade: Glaciation unit.

Glacial Features Geography 12.

FEATURES OF GLACIAL EROSION

Unscramble the words! Zefere Twah Sibarano Gnkpulic Enimroa Llubzngido Freeze thaw Abraision Plucking Moraine Bulldozing.

Landscapes: Glaciation unit.. Unit aims: To find out what we mean by glaciation. To find out how landscapes have been changed by glaciation. To be able.

LANDSCAPE FEATURES RESULTING FROM GLACIAL AND FLUVIOGLACIAL ACTION

They are all features of glacial erosion

What do you notice about this glacier?

AIM: How do Glaciers change the landscape? Do Now:

Glaciers Pg. 79.

Standard Grade: Glaciation unit.

Unscramble the words! Zefere Twah Sibarano Gnkpulic Enimroa Llubzngido

An agent of erosion, weathering, and deposition

6th grade Science Starter October 8th Changing Earth’s Surface:

GEOGRAPHY GCSE REVISION

Glaciers Section 9.4.

Aim: How do Glaciers affect the land?

Glacial Erosion Chapter 4.2.

Glaciers Prentice Hall Chapter 8, Section 4

Erosion and Deposition

Erosion & Deposition by Glaciers

Extension: Describe this valley

GLACIERS A LARGE MASS OF ICE ON LAND THAT FLOWS UNDER THE PRESSURE OF ITS OWN WEIGHT – DOWNHILL OR OUTWARD DUE TO GRAVITY.

Glaciated Landscapes.

LANDSCAPE FEATURES RESULTING FROM GLACIAL AND FLUVIOGLACIAL ACTION

Higher Glaciation - Erosional Features

Security Briefing and Background Check

Lesley Monk Balfron High School Session 2005/6.

Starter: Look at the photos – what do they all have in common?

Glacial Erosion Chapter 4.2.

This valley glacier has bands that look like ripples

Security Briefing and Background Check

Presentation transcript:

Llyn y Fan Fach Geography – Lesson 1

To discover how Llyn y Fan Fach lake was created. Aims To discover how Llyn y Fan Fach lake was created.

Llyn y Fan Fach

Llyn y Fan Fach (Lake of the small beacon-hill) Llyn y Fan Fach is a 10 hectare lake on the western side of the Brecon Beacons. The lake itself is overlooked by the mountain peaks of Picws Du and Waun Lefrith. The northern face of Waun Lefrith was home to a glacier during the Ice Age which gouged out the corrie (or cwm) in which Llyn y Fan Fach now sits.

Llyn y Fan Fach is an example of a corrie lake Llyn y Fan Fach is an example of a corrie lake. A corrie is formed when snow collects in a hollow on the side of a mountain. Over time as more snow falls, snow below is compacted to form ice. This ice then deepens and widens the corrie via the process of abrasion and plucking.

Gravity will compel the ice to try to move downhill, even though it is unable to as it is trapped in the hollow. As the ice rotates is carves out an armchair shaped hollow with a steep back wall. A moraine (a build-up of debris) is formed on the edge of the corrie stopping the ice as it builds up from being able to move downhill. When the ice in a corrie melts, a circular lake is often formed at the bottom of the hollow, this is known as a tarn.

Llyn y Fan Fach was a corrie over 11,000 years ago during the last Ice Age.

Describe how a corrie lake is created.

Draw and label a corrie. Use all of the keywords.

Match the keywords A build-up of debris formed on the edge of the corrie causing a dam effect. Corrie Plucking A lake created after the ice in a corrie melts. Abrasion A hollow carved out by glacial ice. Occurs when rocks scrape the base of the corrie. Tarn Moraine When ice forms around rock fragments.

Look on the internet to find other examples of corries and tarns.