Lab

Question 1

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes: Western USA, Mexico

Answer 1

Margin Type:Transform

Type of crust:continental and oceanic

Major continental or ocean basin relef features:mountains of gulf of california

major regional relief:
San Andreas Fault

current tectonic, seismic, or valcanic activity:
folding and faulting, earthquakes

Question 2

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes:Iceland

Answer 2

Margin Type:Divergent

Type of crust:oceanic

Major continental or ocean basin relef features:mid-oceanic ridge

major regional relief:mid-atlantic ridge

current tectonic, seismic, or valcanic activity:
hot spot valcanism, earthquakes

Note: hot spot volcanism asssociated with divergent plate boundary(ie. Mid-atlantic ridge). Explosive volcanism:lava flows plus pyroclastic sediments(volcanic ash)

Question 3

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes:East Africa

Answer 3

Margin Type: Divergent

Type of crust:Continental

Major continental or ocean basin relef features:
Continental Rift Valley

major regional relief: East African Rift Valleys

current tectonic, seismic, or valcanic activity:
Volcanism, earthquakes

Question 4

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes:Hawaii

Answer 4

Margin Type: N.A

Type of crust: Oceanic

Major continental or ocean basin relef features:
Volcanic Island arc

major regional relief:
Hawaii Islands

current tectonic, seismic, or valcanic activity:
hot spot volcanism, earthquakes

Note: Hot spot Volcanism,Effusive volcanism produces enormous shield volcanoes; has created volcanic island arc

Question 5

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes: India, Nepal, Tibet, China

Answer 5

Margin Type: Convergent

Type of crust: Continental

Major continental or ocean basin relef features:
orogenic mountain belt

major regional relief:Himalayan Mountains

current tectonic, seismic, or valcanic activity:
Earthquakes

Question 6

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes:Japan

Answer 6

Margin Type: Convergent

Type of crust:oceanic

Major continental or ocean basin relef features:
volcanic island chain

major regional relief:
Japanese Islands

current tectonic, seismic, or valcanic activity:
subduction, volcanism, earthquakes

Note: Oceanic-oceanic convergent plate boundary. Subduction of oceanic lithosphere generates magma that is erupted explosively to create composite volcanoes composed of lava flows and puroclstic sediments. Valcanims has created a volcanic island arc

Question 7

Earths Surface relief features and associated tectonic, seismic, and vollcanic processes:Russia

Answer 7

Margin Type:convergent

Type of crust:continental

Major continental or ocean basin relef features:
orogenic mountain belt

major regional relief: Ural Mountains

current tectonic, seismic, or valcanic activity:
None

Question 8

The lithosphere, consisting of the _____ and the uppermost portion of the _____, ranges in thickness from 60-150 km; it is _____ under the continents and ______ under the ocean basins

Answer 8

crust, mantle

60-150

thickest,thinnest

Question 9

The lithosphere consists of at least __ separate segments (_______ plates), which are able to move over a soft layer of the mantle (_______) through the slow plastic deformation of rock

Answer 9

14
lithospheric

asthenosphere

Question 10

The greatest seismic activity is associated with _____ plate boundaries that are undergoing downwarping (______) into the asthenosphere

Answer 10

convergent

subduction

Question 11

diastophism

Answer 11

Crustal deformation from tensional and compressional forces can generate folds and faults

Question 12

altitudinal tinting

Answer 12

map of land surface and sea floor relief

• Surface topography is depicted using a technique known as altitudinal tinting
• Note the colour tint legend on the right hand margin indicating elevation zones in metres above or below sea level.

Question 13

compare and contrast the volcanic processes and landforms exhibited in Hawaii, Japan, and Iceland

Answer 13

Hawaii: Hot spot volcanism. Effusive volcanism produces enormous shield volcanoes;has created a volcanic island arc

Japan: oceanic-oceanic convergent plate boundary, subduction of oceanic lithosphere generates magma that is erupted explosively to create composite volcanoes composed of lava flows and pyroclastic sediments. Volcanism has created a volcanic island arc

Iclenad: hot spot volcansism associated with a divergent plate boundary(mid atlantic ridge). Explosive volcanism: lava flows plus pyroclastic sediments(volcanic ash)