Final Test 3 questions
Geology 101 with Tick at University of Alabama - Tuscaloosa
About this deck
By: Robert Perkins
Textbook:
Essentials of Geology (Second Edition)
Created: 2012-04-29
Size: 31 flashcards
Views: 128
Textbook:
Essentials of Geology (Second Edition)Created: 2012-04-29
Size: 31 flashcards
Views: 128
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the size of a wave is controlled by what 3 factors
wind speed, wind duration, fetch
most of the sediment transported and distributed along the shoreine occurs as a result of
long shore currents
sumbergent shorelines are due to
-subsiding land due to deposition
-rising sea level due to global warming
- a relative increase in sea level
how are spits, hooks, and baymouths formed
sand is deposited from long shore currents
a beach can be in jeopardy of disappearing under what conditions
- when the amount of sand removed exceeds whats accumulated
-an emergent coast undergoing erosion
-from the development of jetties or groins
longshore currents that transport sand parallel to the beach are fundamentally caused when
waves approach a shoreline at an angle
fetch refers to___
a large expanse of open water over which wind blows and genrates waves
a current day example of an emergent coastine, typically associated with tectonically active uplift is
pacific coastline
the difference b/w summer and winter beaches is primarily due to
seasonal differences in the frequency and intensity of storms
which of the following is an erosional remnant of a shoreline
marine terrace
when large contental glaciers advanced across the n hemisphere during the pleistocene
the crust beneath subsided due to overlying weight of the glacier
-worldwide sea level fell
-the climate became cooler
the terminal or (end) moraine
-results from the transport of sediment at the leading edge of a glacier
-defines the furthest advancement of a flacier
-is a depositional feature
the greatest volume of ice earth today is held in ___ glaciers
continetal ice sheets (greenland and antartica)
Valley glaciers are typically
are smaller than continetal glaciers
-move faster then continental glaciers
-carve out u-shaped valleys, transporting large amounts of sediment
which one of the following applies to a valley glacier that advances over a period of many years?
acummulation exceeds wastage and ablation
____ is one of the two major mechanisms by which glaciers move
plastic flow
explanations for the causes of glaciation are
plate tectonics
variation in earths orbit
stream gradient
the drop in elevation of a stream divided by the distane the stream travels
rise/run
if the largest sediment a stream could carry was gravel, then is would be said that
gravel deines the streams competence
alluvial fans and deltas are produced from the deposition sediment
when the velocity of a river or stream is suddenly decreased
capacity is
the total amount of load a stream can carry
which of the following is the correct definition of discharge
how much volume of water is moving past a point over a certain period of time
the phenomenon of vertical accretion takes place when
fine grained particles settle rom water on a flood plain
the area from which a stream and it tributaries receive their discharge
drainage basin
constructing a dam on a river has what impacts just upstream of the dam
increase the local base level
create a more depositional regime
what is true about a 100-year flood
a 100 year flood can occur twice in the same year
a certain size flood that on average occurs every 100 years and its probabilty of recurring is 1/100
how does urbanization affect the runoff and infiltration within a watershed (drainage basin)
the peak of the flood stage arrives quicker than normal
river flood stage increases
infiltration decreases and runoff increases
which type of stream load is likely to carry fine grained sediments down stram which can settle out to form deltas when reaching the ocean
suspended load
two features typical of karst topography
sinkholes and disappearing streams
what is the requirement for artesian conditions
must be a confined aquifer
water within the aquifer is pressurized
higher energy enviroments (turbulent streams) typically deposit very fine-grained sediments such as clays
false
About this deck
By: Robert Perkins
Textbook: Essentials of Geology (Second Edition)
Created: 2012-04-29
Size: 31 flashcards
Views: 128
Textbook:
Essentials of Geology (Second Edition)Created: 2012-04-29
Size: 31 flashcards
Views: 128
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
Kathy