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EAS 2600 > bullshit 2 > Flashcards

bullshit 2 Flashcards

1
Q

radioactive decay by beta particle emission

A

atomic # is one more than the parent. mass numbers are the same

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2
Q

Cenozoic is also known as

A

new life

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3
Q

how do kettles form

A

melting of large blocks of ice left by a glacier

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4
Q

glacial striations

A

grooves created by rocks scratching against bedrock at the base of a glacier

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5
Q

result of continental collision during assembly of pangea

A

himalays

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6
Q

rock outcrop with crossbreeds in well-sorted quartz sandstone.
what is the depositional environment of the sandstone

A

sand dune

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7
Q

sequence of a decrease In air content

A

snow
granular ice
firn
glacial ice

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8
Q

melting of icebergs floating during the last 50,000 years

A

sea level rises 100 meters

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9
Q

icebergs form through

A

calving

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10
Q

fossils are most common in what rock type

A

sedimentary

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11
Q

ground water table

A

same general shape as the topography

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12
Q

difference between saturated / unsaturated zones fo groundwater:

A

pore spaces in sautéed = filled with water

pore spaces in unsaturated = not filled with water

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13
Q

layers of sediment extend laterally in all directions

A

principle of lateral continuity

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14
Q

in Grand Canyon, the contact between the Vishnu Schist and overlying sediments is what type of uncofmrity

A

noncomformity

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15
Q

combination for best groundwater reservoir

A

high permeability / porosity

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16
Q

ediacaran fauna

A

earliest known evidence of multi-cellular organisms

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17
Q

Georgia Tech campus is an example of ___ geologic provicen

A

piedmont

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18
Q

earth covered by glaciers during :

A

Cenozoic

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19
Q

graded beds of sand, silt, and mud deposited on submarine fans are called

A

turbidites

20
Q

a coprolite is

A

fossilized animal excretion

21
Q

not a major extinction event

A

end of cambrian

22
Q

most detailed bathymetric maps of Atlanta, pacific, Indian Ocean basins were produced using

A

satellite data of avg. sea surface hieght

23
Q

when water is pumped from a well, a depression produced under water table is

A

cone of depression

24
Q

sedimentary rock outcrop with no layering and particles ranging from boulders to clay . this deposit is

A

glacial morraine

25
Q

extensive deposits of windblown silt are

A

loess

26
Q

pangea began to break during

A

mesozoic

27
Q

why do the great basins / Mojave deserts of western NA exist

A

the two deserts lie in the rain shadows of mountains

28
Q

NA cordillera

A

western NA

29
Q

folded / faulted rocks that formed during Paleozoic era

A

applachain

30
Q

the higher permeability of an aquifer means

A

faster the groundwater will flow

31
Q

burrow =-

A

trace

32
Q

addition of carbon dioxide to groundwaters flowing through limestone layers will :

A

make waters more acidic resulting in limestone dissolution

33
Q

how do venticrafts form

A

by sandblasting

34
Q

approx age of earth

A

4.5 billion

35
Q

aquifer above regional water table

A

perched water table

36
Q

of major mass extinctions

A

5

37
Q

blue ridge province of Appalachia ford belt was thrust as sheets over the top of which geologic province

A

valley and ridge province

38
Q

mountain remnants in desert regions

A

inselbergs

39
Q

permeability is

A

ability to transmit water through connected pore spaces

40
Q

element formed during big bang

A

Hydrogen

41
Q

by ___ period, large tropical swamps extended across NA eventually becoming the vast coal deposits of today :

A

pennsylvanian

42
Q

spring tides occur when

A

sun-earth-moon align straight line

43
Q

accumulation of rock, sandy, or clayey material deposited at end of glacier :

A

morraine

44
Q

dust blowing from desert regions over certain ocean regions stimulates biological productivity primarily through the addition of

A

iron

45
Q

1000 atoms, 250 parent atoms left, half-life of 1 million years . how old is this guy?

A

2 million years

EAS 2600 (4 decks)

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