Unit 2 geology

Question 1

6 eminent forces

Answer 1

1. Water
2. Gravity
3. Ice/ temperature change
4. Wind
5. Chemical
6. Human activity
   Mining
   Deforestation
   Alter the flow of water

Question 2

Plate tectonics

Answer 2

Plate tectonics is the theory that Earth’s outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core

Question 3

Seismologist

Answer 3

Are scientists who study earthquakes

Question 4

Topography

Answer 4

Is the study of the shape and features of land surfaces

Question 5

Striations

Answer 5

Is a groove, created by a geological process, on the surface of a rock or a mineral

Question 6

Pyroclastic flow

Answer 6

Is a fast moving current of hot gas and volcanic matter that flows along the ground away from a volcano.

Question 7

Metamorphic rock

Answer 7

Is a rock that transforms from several rocks ( this process is called metamorphism

Question 8

U shaped valleys

Answer 8

They are trough Valleys or glacial troughs are formed by a process of glaciation

Question 9

Erosion

Answer 9

Is the action of surface processes that removes soil, rock, or dissolved material from one location on the earth’s crust

Question 10

Sedimentary rock

Answer 10

Are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension

Question 11

Rift Valley

Answer 11

Is a linear shaped lowland between several highlands or mountain ranges created by the action of geologic rift or fault. A Rift Valley is formed on a divergent plate boundary, a crust extension or surface, when is subsequently further deepened by forces of erosion

Question 12

Crevasse

Answer 12

Is a deep crack, or fracture , fouling an ice sheet or glacier

Question 13

Lake plains

Answer 13

Is an pain formed due to the past existence of a lake and accompanying sediments accumulation

Question 14

Igneous rock

Answer 14

Is an rock formed by the cooling of lava

Question 15

Escapement

Answer 15

Is a mechanical linkage in mechanical watches and clocks that gives impulses to timekeeping element and periodically releases the gear train to move forward, advancing the clocks hand

Question 16

Pangaea

Answer 16

A supercontinent that incorporates almost all the land masses on earth

Question 17

Plateaus

Answer 17

Is an area of highland consisting a flat terrain, that is raised sharply above the surrounding area on at least one side. Often one or more sides have deep hills.

Question 18

Drumlin

Answer 18

An oval shaped hill, largely composed of glacial drift, formed beneath a glacier or ice sheet and aligned in the direction of ice flow

Question 19

Folding

Answer 19

A fold is a bend in the rock strata. Is a type of earth movement resulting from horizontal compression of rock layers by internal forces of earth along plate boundaries.

Question 20

Continental glaciers

Answer 20

Are a continuous masses of ice that are much larger that alpine glacier

Question 21

Calving

Answer 21

Is the breaking of ice chunks from the edge of a glacier

Question 22

Convection currents

Answer 22

That occur within the molten rocks in the mantle, act like a conveyor belt for the plates. Tectonic plates move in different directions. The heat from the core is transferred to the mantle.

Question 23

Intrusions

Answer 23

Is any formation of intrusive igneous rock, rock formed form lava that cools and solidifies within the crust of the planet

Question 24

Esker

Answer 24

A long ,narrow, winding ridge composed of stratified sand and gravel deposited by subglacial or englacial melt water stream

Question 25

Till

Answer 25

Is unsorted glacial sediment. Till is derived from erosion and entrainment of material by moving ice of a glacier

Question 26

Alpine glacier

Answer 26

Formed among summits and descending a mountain valley

Question 27

Core samples

Answer 27

Technique used underground or undersea exploration and prospecting

Question 28

Alfred Wegner his theory of Continental Drift

Answer 28

His theory proposed that continent were once joined together as one supercontinent Pangaea

• fossil correlation
• the continent’s fit together like puzzle pieces
• geological similarities
• Evidence of paleoglaciaton

Question 29

The 4 Geologic Eras correct chronological order .

Answer 29

Precambrian palaezoic Mesozoic Cenozoic

Question 30

Forces that build

Answer 30

Folding
Faulting
Volcanoes