quiz 4 Flashcards

0
Q

study of sediments

A

sedimentology

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1
Q

involves looking at ancient earthquakes

A

paleoseismicity

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2
Q

**zone of turbulent water
:whirlpool
:occur in narrow bays

A

maelstrom

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3
Q

what causes tides

A

1) earth rotation: centrifugal force

2) gravitational pull of moon and sun

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4
Q

2 tidal bulges

A

1) moon pull on earth’s ocean (gravity bulge)

2) inertia of earth (inertia bulge)

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5
Q

highest high tides

lowest low tides

A

spring tides

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6
Q

lowest high tides

highest low tides

A

neap tides

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7
Q

:occur when earth-moon-sun line up

:constructive interference

A

spring tides

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8
Q

:occur during first quarter moon or third quarter moon

:destructive interference

A

neap tides

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9
Q

3 types of tidal patterns

A

1) diurnal tide pattern
2) semiurnal tide pattern
3) mixed tides

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10
Q

have 1 high and low tide Q24hrs

A

diurnal tide patterns

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11
Q

have 2 equal high and low tides Q24hrs

A

semiurnal tide pattern

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12
Q

have 2 unequal high and low tides Q24hr

A

mixed tides

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13
Q

:have no tides –> canceling of tides
:norther hemisphere
–> currents clockwise
–> tides counterclockwise

A

Amphidromic points

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14
Q

area of extreme tides

A

Macrotidal Regime

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15
Q

tide patterns preserved in the rock record

A

tidal rhythmites

16
Q

characteristics of coasts

A

steeper slope –> courser material

17
Q

features along the coast/ beach

A
  • ripples
  • rip current
  • rillmarks
  • swash marks
  • groins
  • layering in beach sand
18
Q

2 types of coasts

A

1) emergent coasts

2) submergent coasts

19
Q

***land is rising relative to sea level
:erosional coasts
:lose material

A

emergent coasts

20
Q

***land is sinking relative to sea level

:depositional coasts

A

submergent coasts

21
Q

what makes coasts submergent or emergent

A

1) tectonic forces
2) changes in sea level
3) changes in winds and currents

22
Q

glacially cut canyons that become flooded with sea water

A

fjords

23
Q

forms where a river meets the ocean or lake

A

delta

24
Q

3 dominating factors of deltas

A

1) rivers
2) tides
3) waves

25
Q

example of river dominated delta aka bird foot deltas

A

Mississippi River

26
Q

example of tide dominated delta

A

colorado river

27
Q

example of wave dominate delta

A

Nile River

28
Q

:live in warm, clear waters

:predatory and have zooxanthellae living their tissues

A

coral

29
Q

:are photosynthetic

:give color to coral

A

zooanthellae

30
Q

sediments stuck in roots of trees eventually develop into land

A

mangroove swamps

31
Q

4 types of estuaries

A

1) Drowned river mount
2) Fjord
3) Lagoons
4) Tectonic

32
Q

example of drowned river mount estuary

A

sydney harbor

33
Q

created by barrier islands

A

lagoons

34
Q

these have forces that lower or raise land

A

tectonic estuaries

35
Q

In Japanese tsunami means

A

Harbor wave

36
Q

This was the first scientifically studied earthquake and tsunami

A

Lisbon Portugal 1755

37
Q

Why is the body count for tsunamis high

A

1) high % of people live near coast
2) no warning
3) time of day
4) force of water is extreme