Geology Final Semester 1

Front 1

In the early 20th century who argued for continental drift

Back 1

Alfred wegener

Front 2

What mineral is the hardest in nature

Back 2

Diamond

Front 3

What reacts readily with acids

Back 3

Calcite

Front 4

Which group of minerals are the most abundant in earth's crust

Back 4

Silicates

Front 5

Late paleozoic supercontinent is known as

Back 5

Pangaea

Front 6

Continental drift hypothesis was rejected bc wegener could not

Back 6

Identify a mechanism capable of moving continents

Front 7

What energy source is thought to drive the lateral motions of the earth's lithospheric plates

Back 7

Export of heat from deep in the mantle to the top of the asthenosphere

Front 8

Accurately describe the volcanoes of the Hawaiian islands

Back 8

Shield volcanoes fed by a long lived hot spot below the Pacific lithospheric plate

Front 9

Extrusive igneous rocks are typically finer grained than Extrusive rocks. Why?

Back 9

Extrusive magma cools quickly so the mineral grains do not have time to grow

Front 10

Mount St Helen's is a

Back 10

Large composite volcano

Front 11

What tends to increase the explosive potential of magma body beneath a volcano

Back 11

High viscosity and dissolved gas

Front 12

Kilauea and mauna loa are examples of

Back 12

Basaltic shield volcanoes

Front 13

Which kind of eruptive activity is most likely to be highly explosive

Back 13

Eruptions of big continental margin composite cones or stratovolcanoes

Front 14

_______ magma is the most abundant type of erupted at Oceanic spreading centers

Back 14

Basaltic

Front 15

Which region has the greatest concentration of currently active volcanoes

Back 15

Circumpacific area

Front 16

The recent volcanic activity in Yellowstone is related to

Back 16

Intra plate Hotspot volcanism

Front 17

What describes the volcanism in the cascade range in northwestern United states

Back 17

Related to plate subduction

Front 18

Sizes shapes and arrangements of mineral grains in an igneous rocks are known as

Back 18

Texture

Front 19

What has a aphanitic texture

Back 19

Andesite and rhyolite

Front 20

What type of lava is dominant in volcanoes on Hawaii and iceland

Back 20

Basalt

Front 21

Flint chert and jasper are microcrystalline forms of

Back 21

Quartz

Front 22

Which of following is not necessary for formation of meta rock

Heat

Pressure

Calcium rock or liquid

Chemically active liquids

Back 22

Calcium rich or liquids

Front 23

What is when rocks store and release energy in the form of an earthquakes is

Back 23

Elastic rebound

Front 24

Where is the world's largest ice sheet located

Back 24

Antarctica

Front 25

Where is the world's second largest ice sheet located

Back 25

Greenland

Front 26

What is formed by alpine gaciation

Back 26

U shaped valley

Front 27

Out wash Plains and Valley trains

Back 27

Are both deposited by melt water streams

Front 28

Which type of glacial drift is deposited by glacial meltwater

Back 28

Stratified drift

Front 29

Where are the largest kettles located

Back 29

Minnesota

Front 30

Glacial erratic are blocks of rock that are top large for glacier to move is

Back 30

False

Front 31

When an earthquake occurs, the energy radiates in all directions from its source also known as

Back 31

Focus

Front 32

S waves travel through solids and p waves travel through

Back 32

Liquids

Front 33

P waves have the

Back 33

Highest velocity

Front 34

On a typical seismogram _______ will show the highest amplitude

Back 34

Surface waves

Front 35

Distance between seismological recording station and the quake is determined by

Back 35

Arrival times of p and s waves

Front 36

Approx how much more energy is released in 6.5 moment magnitude earthquake than one with Mw of 5.5

Back 36

30 times

Front 37

Refers to tendency for foundation material to lose its internal cohesion and fail mechanically during earthquake shaking

Back 37

Liquefaction

Front 38

Most of knowledge about earth's interior comes from

Back 38

Seismic waves

Front 39

Oceanic crust primarily composed of

Back 39

Basalt

Front 40

Continental crust is primarily composed of

Back 40

Granite

Front 41

Strong parallel alignment of coarse mica flakes or different mineral bands in meta rock

Back 41

Foliation

Front 42

What rock has finest grain size

Back 42

Slate

Front 43

_________ is typically formed by meta of sandstone

Back 43

Quartzite

Front 44

________forms from the metamorphism of limestone or dolostone

Back 44

Marble

Front 45

What foliated meta rock is texturally intermediate between slate and schist

Back 45

Phyllite

Front 46

________ is characterized by segregation of light and dark colored minerals into thin layers or bands

Back 46

Granitic gneiss

Front 47

Pressure fairly low the rock is in response upper part of the crust and heat is supplied from nearby magma

Back 47

Contact metamorphism

Front 48

Major source of heat for contact metamorphism

Back 48

Heat from nearby magma body

Front 49

In which setting would regional metamorphism be most likely

Back 49

At great depths in crust where 2 continents are colliding

Front 50

What is the most common type of chemical sedimentary rock

Back 50

Limestone

Front 51

Sedimentary rocks were not

Back 51

Originally deposited at depth below the bottom of the sea

Front 52

Detrital sedimentary rocks are classified based on

Back 52

Grain sizes a day detrital particles