Underground Storage Tanks Approval ‐ 15A NCAC 02N and 15A ...
Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.
-
Upload
wesley-wright -
Category
Documents
-
view
215 -
download
0
Transcript of Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.
![Page 1: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/1.jpg)
Glaciers
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–1
![Page 2: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/2.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–2
Formation of Glacial Ice from Snow
![Page 3: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/3.jpg)
![Page 4: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/4.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–4
Figure 15-5 Mechanics of Glacial Flow
![Page 5: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/5.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–5
Deeply Crevassed Davidson Glacier near Haines, Alaska
Source: Breck P. Kent
![Page 6: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/6.jpg)
Crevasses
Video: Crevasses Essentials of Geology, 15a–6
![Page 7: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/7.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–7
Types of Glaciers (cont’d) –
![Page 8: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/8.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–8
Types of Glaciers (cont’d) – Angel Glacier
Source: Comstock
![Page 9: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/9.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–9
Types of Glaciers (cont’d) – Valley (Alpine) Glacier
Source: Tom Bean
![Page 10: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/10.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–10
Types of Glaciers (cont’d) – Icecap
Source: Betty Crowell/Faraway Places
![Page 11: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/11.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–11
Types of Glaciers (cont’d) – Tidewater Glacier
Source: Jim Wark/Peter Arnold, Inc.
![Page 12: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/12.jpg)
Continental Glacier
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–12
![Page 13: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/13.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–13
Glacial Erosion
![Page 14: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/14.jpg)
![Page 15: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/15.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–15
![Page 16: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/16.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–16
![Page 17: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/17.jpg)
![Page 18: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/18.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–18
![Page 19: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/19.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–19
![Page 20: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/20.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–20
![Page 21: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/21.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–21
![Page 22: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/22.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–22
![Page 23: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/23.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–23
![Page 24: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/24.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15a–24
![Page 25: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/25.jpg)
Deposition by Glaciers
• Till - a mixture (unsorted) of boulders, sand, clay and silt. Glaciers have filled entire valleys w/ till making them flat.
• Outwash - material deposited by the glacier as it melts, similar to river deposits. Outwash is sorted or separated by the size of its particles. (boulder, gravel, sand, silt)
![Page 26: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/26.jpg)
lateral moraine
medial moraine
![Page 27: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/27.jpg)
Till Erosion
• Moraine - mounds of materials deposited along the sides, in the middle or at the end of the glacier as it stops moving & begins to melt.
![Page 28: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/28.jpg)
Till Erosion
• Erratic – Large boulders dropped by glaciers
![Page 29: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/29.jpg)
Outwash
Large Sediment
Med Sediment
Small Sediment
http://www.classzone.com/books/earth_science/terc/content/visualizations/es1303/es1303page01.cfm?chapter_no=visualization
Glacier
melting
![Page 30: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/30.jpg)
Depositional Features (continental glaciers)
![Page 31: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/31.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–31
How do Ice ages occur? Land bridge Formation
![Page 32: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/32.jpg)
http://www.classzone.com/books/earth_science/terc/content/visualizations/es1506/es1506page01.cfm?chapter_no=visualization Essentials of Geology, 15c–32
Milankovitch Cycles
![Page 33: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/33.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–33
Milankovitch Cycles (cont'd)
![Page 34: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/34.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–34
Milankovitch Cycles (cont'd)
![Page 35: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/35.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–35
Milankovitch Cycles (cont'd)
![Page 36: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/36.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–36
Changes In Global Climate During the Cenozoic Era
![Page 37: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/37.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–37
Effects of North American Ice Sheet
![Page 38: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/38.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–38
Geology at a Glance The Work of Continental Glaciers
![Page 39: Glaciers Copyright © Houghton Mifflin Company. All rights reserved.Essentials of Geology, 15a–1.](https://reader038.fdocuments.net/reader038/viewer/2022103122/56649f455503460f94c67758/html5/thumbnails/39.jpg)
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 15c–39
Geology at a Glance The Work of Alpine Glaciers