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oceanography final
John Haynes GEOL211 2016
158
Other
Undergraduate 1
12/12/2016

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Term
convergent boundary between oc and cont plates
Definition
volcanic mountains, subduction zones
Term
convergent boundary between oc and oc
Definition
island arc, subduction zones
Term
convergent boundary between cont and cont
Definition
mountains, collision zones, Appalachian Mountains
Term
a majority of terrigenous sediment deposits come from what/where?
Definition
rivers
Term
zones of the Earth's interior
Definition
inner and outer mantle, inner and outer cores, crust
Term
compositions of the cores
Definition
both magnetic; inner is solid and outer is liquid
Term
transform boundaries
Definition
earthquakes, trenches, San Andreas Fault
Term
divergent boundaries
Definition
oceanic spreading ridge, new ocean basins, Mid-Atlantic Ridge
Term
causes of volcanoes
Definition
hot spots or transform/convergent boundaries
Term
formation of rift valleys
Definition
tensional stress
Term
atoll
Definition
a ring-shaped reef, island, or chain of islands formed of coral
Term
reef
Definition
a ridge of jagged rock, coral, or sand just above or below the surface of the sea, teeming with life
Term
difference between an atoll and a reef
Definition
atolls are very specific types of reefs; forms under around the mouth of an underwater volcano
Term
Darwin point
Definition
point at which coral dies because of cold temperatures
Term
ophiolites
Definition
pillow lavas in part of the ophiolite sequence; like toothpaste out of a tube; where oc. crust is submerging and where hot spots once were
Term
main rock of oceanic rock
Definition
basalt; lighter/less dense than granite, darker in color, finer grain bc faster cooling, thin, iron
Term
main rock of continental rock
Definition
granite; heavier/more dense than basalt, lighter in color, coarse grain bc slower cooling, thick, more siliceous
Term
terrigenous
Definition
come from weathering/erosion (mostly), "of earth", 45% of sea floor, sand, mud and silts
Term
biogenous
Definition
come from the lithification of old fossils and skeletal remains, 55% of sea floor, calcareous and siliceous oozes
Term
cosmogenous
Definition
come from meteorites and space junk, 0% of sea floor, tektites, heats up impact spot and kicks up instantly molten rock
Term
hydrogenous
Definition
come from the precipitation of minerals from water, 1% of sea floor, manganese nodules and evaporites
Term
how is sediment transported
Definition
rivers, glacial deposits, wind-blown dust, coastal erosion, groundwater, volcanic activity
Term
siliceous oozes (examples)
Definition
diatoms and radiolarians
Term
calcareous oozes (examples)
Definition
foraminifera and coccoliths (c make up the chalk deposits of the world and are photosynthesizers)
Term
sediments provide us with what pertinent information?
Definition
dating/ages
Term
carbonates
Definition
formed from the lithification of fossilized forams, limestone, require specific environments, include oolites
Term
energy
Definition
the ability to do work
Term
triple point of water
Definition
temperature point at which all 3 phases of water can exist at the same time; 0*C and .01 atm (atmospheric pressure)
Term
Law of Conservation of Energy
Definition
energy cannot be created nor destroyed, can only be destroyed
Term
1st Law of Thermodynamics
Definition
change in internal energy of a system=heat added to the system-the work done by the system
Term
2nd Law of Thermodynamics
Definition
in all systems and all transformations of energy, some is lost as heat and cannot be used for work
Term
thermal energy
Definition
total of all energy (potential+kinetic) of the particles that make up a substance
Term
specific heat capacity
Definition
energy it takes to raise the temperature of 1g of a substance 1*C, high heat capacity of water is what regulates the temperature of earth today-also gives us humidity and seasons
Term
boiling
Definition
rapid evaporation within and on the surface of a susbatance
Term
polarity of water molecules
Definition
polar-both positively and negatively charged (depends on part of the molecule), but a slight positive charge overall
Term
water molecule structure
Definition
bent molecule 104*-allows for frozen water to be less dense than liquid, looks like Mickey Mouse, hydrogen bonds attach different molecules, covalent bonds attach within the molecule
Term
dipole
Definition
a molecule in which a concentration of positive electric charge is separated from a concentration of negative charge
Term
cohesion
Definition
within water molecules so they stay together, surface tension
Term
adhesion
Definition
water molecules stick to other water molecules and other unlike substances
Term
freezing point of water
Definition
0*C
Term
boiling point of water
Definition
100*C
Term
solvent
Definition
substance in which things are dissolved, water is the universal solvent bc so many substances are dissolved in it
Term
solute
Definition
substance that becomes dissolved
Term
cations
Definition
positively charged ions, comes from , K+
Term
anions
Definition
negatively charged ions, come from outgassing/volcanic activity, Cl-
Term
origin of Earth's salts
Definition
cations and anions
Term
pH of the oceans
Definition
slightly basic-acidic water would destroy some fossils/sediments
Term
buffering
Definition
the tendency of the ocean to remain at around the same pH-neutralizes very quickly
Term
latent heat
Definition
heat of phase changes
Term
sensible heat
Definition
temperature, can be measured with thermometer
Term
land/oceanic heating
Definition
dry ground heats faster than moist ground; land heats daily and oceans heat seasonally; much higher range of temperatures on land than in oceans-make coastal climates more mild than continental ones
Term
density is determined by
Definition
temperature, salinity and pressure
Term
properties of water
Definition
adhesion, cohesion, surface tension, high specific heat capacity, low viscosity, universal solvent, water expands as it freezes and makes it less dense (crystal lattice structure of ice, evaporative cooling, good sound transmission, high transparency, high boiling and melting points
Term
3 forms of motion for molecules
Definition
rotation, translation and vibration
Term
insolation
Definition
the amount of solar radiation reaching a given area
Term
large footprint vs small footprint
Definition
the bigger the footprint, the less intense the sunlight/energy
Term
reflection/absorption rates
Definition
more reflected at poles, more absorbed at equatorial regions; surplus of heat at equator, deficit at poles
Term
hydrolysis
Definition
separating solids from liquids
Term
plane of the ecliptic
Definition
NO FUCKING CLUE HAHAHA !!!!!!!!!!!!
Term
insolation fluctuations
Definition
more insolation during summer, less during winter; amount of solar energy reaching the earth's surface varies by latitude and season
Term
heat transfer
Definition
by atmospheric and oceanic currents (also by hurricanes occasionally and slightly)
Term
wind
Definition
movement of air from high pressure-low pressure systems
Term
air pressure across the globe
Definition
constant low pressure at poles, subtropics are high pressure bc hot air is always rising, equator is low pressure
Term
Coriolis effect
Definition
curving of winds and currents because of the spherical nature of the globe; air/water moves faster on the equator than the poles, Southern Hemisphere deflects to the left, Northern to the right
Term
global wind patterns
Definition
(from equator--poles): trade winds, prevailing westerlies, polar easterlies; causes rain belts along tropics and equator
Term
influences on gyre formation
Definition
gravity, wind patterns, solar heating, Coriolis effect
Term
salinity of land-locked water bodies
Definition
very high because increased evaporation and restriction of oceanic circulation; densest/saltiest water is around poles
Term
derelicts
Definition
pathways of air/wind, powerful enough to mess up some ships
Term
5 gyres in the world
Definition
North and South Atlantic, Pacific, 2 in Indian oceans
Term
gyre
Definition
water in a loop/circle/oval pattern
Term
eddy
Definition
a circular movement of water, counter to a main current, causing a small whirlpool; temperature is very out of place in latitude
Term
El Nino effects
Definition
heavy rains/flooding in eastern Pacific, weakening of trade winds, upwellings off the coast of South America, temperatures in eastern Pacific rise, eastern Pacific gets more humid, western Pacific gets drier, normal weather patterns are disrupted
Term
La Nina effects
Definition
waters get cooler (not as disruptive as El Nino)
Term
southern oscillation
Definition
after an El Nino, there is a drop in pressure in the eastern Pacific and a rise in the western
Term
tsunami
Definition
"harbor wave", seismic wave, mad destruction, restored by gravity
Term
causes of tsunamis
Definition
undersea earthquake (most common), volcanic eruption, undersea landslide, meteorite/asteroid impact
Term
differences between tsunamis and regular waves
Definition
tsunamis are bigger, more lateral and do much more damage
Term
swell
Definition
linear pattern of waves arriving at the shore
Term
constructive interference
Definition
when waves hit each other and combine to form a larger wave, ex: rogue waves
Term
destructive interference
Definition
when waves hit and cancel each other out
Term
tides
Definition
caused by gravity of moon/sun, restored by gravity, very regular and predictable, neap (weak) and spring (strong tides) are determined by the position of the moon (straight orientation/new and full moons=spring, perpendicular/1st and 3rd quarter moons=neap)
Term
wind waves
Definition
caused by wind and restored by gravity, orbital patterns
Term
capillary waves
Definition
caused by wind and restored by surface tension, very small and insignificant waves
Term
surf beat seiches
Definition
caused by wind and restored by gravity, shape of waves are influenced by shape of the coastline
Term
ebb tide
Definition
water going out from coastal bay to ocean
Term
flood tide
Definition
water going in to the coastal bay from the ocean
Term
slackwater
Definition
no water is rushing significantly in either direction
Term
inlet
Definition
break in barrier island where water goes in and out (flood and ebb tides), are highly influenced by tides
Term
semidiurnal tides
Definition
relatively consistent highs and lows, 2 highs and 1 low or 2 lows and 1 high/tidal day
Term
mixed semidiurnal
Definition
high tidal range, very asymmetrical and not very predictable, 2 highs and 1 low or 2 lows and 1 high
Term
diurnal
Definition
not a huge difference between high and low tides, 1 high and 1 low per tidal day
Term
tidal datum
Definition
mean sea level
Term
movement of water in a tide
Definition
horizontal and vertical movement but the horizontal is the only component moves water
Term
Dynamic Tidal Theory
Definition
(different from Equilibrium Tidal Model), shows that tides are influenced by the shapes of continents, egg shaped bulges in which the Earth rotates
Term
complications with Equilibrium Tidal Theory
Definition
lunar day is longer than an Earth day, the tilt is not taken into account, elliptical orbit of moon is not taken into account (assumed circular), Coriolis effect not accounted for, declination (angle) of moon in it's orbit, orbit of Earth around sun is assumed circular when it's elliptical
Term
nodal point
Definition
place on Earth's water surface with no movement
Term
co-tidal lines
Definition
anywhere a high tide is present on Dynamic Tidal Theory
Term
washover fans
Definition
irregularity of coastline, leap frog effect of the sand
Term
what forces shape the coastlines?
Definition
wind, waves and currents (and occasionally the huge storms like nor' easters and El Ninos)
Term
wave refraction
Definition
waves "stubbing their toes" and curving because of coastlines and shallowing water, causes irregular coastlines
Term
sea stacks
Definition
random rock protruding above the surface of the water, formed from sea arches that have been worn down over time from waves and gravity
Term
wave base
Definition
1/2 wave length, where orbital motion stops, when it hits the ocean floor, the wave begins to refract and slow down
Term
hanging valley
Definition
rivers that fall off the sides of cliffs that used to be in line/even with the shore
Term
longshore current
Definition
sand transport because wave energy pulling them up and gravity shoving it back down; swimming in the ocean and looking back to see you've drifted farther from your towel; carries sediments to create sand bars and whatnot
Term
hook
Definition
curved end of a spit, always points towards the mainland
Term
tombolo
Definition
sand connector between mainland and sea island, can disappear with high tides, doubly concave
Term
baymouth bar
Definition
goes across embayments in a perpendicular and linear fashion, results from weak rock on mainland
Term
when/how do many inlets form?
Definition
large storms/nor' easters
Term
barrier islands
Definition
not entirely connected to mainland, very linear on ocean-side and much more irregular on bay side, protect mainland from most waves/currents, causes a lot of wave refraction, most dynamic features on Earth's surface-storm surges can create or destroy them
Term
estuary
Definition
mixing ground between freshwater from streams/rivers and saltwater from oceans
Term
coastal plain
Definition
low, flat-lying area that’s been flooded by sea and river, ex: Chesapeake Bay
Term
fjord
Definition
river valley that was occupied by a large glacier in the Ice Age, very deep and narrow, ex: Hardangerfjord
Term
bar-built estauries
Definition
coastal plain estuaries but they have barrier islands, also aren’t as long, ex: Pamlico Sound
Term
tectonic estuaries
Definition
shape of estuary is representative of the transform fault, on top of said transform fault, ex: San Francisco Bay
Term
salt marshes
Definition
in polar and temperate regions, swampish, no trees, where many animals start their lives (nursery)
Term
mangrove swamps
Definition
in tropics, forest-like
Term
head of an estuary
Definition
where a river/stream meets an estuary
Term
vertical mixing in an estuary
Definition
not much mixing of fresh and salt water
Term
biggest influences on estuaries
Definition
TIDES, rivers, fluvial (river) sediments, marine sediments, waves
Term
flocculation
Definition
add something to water to clump together suspended sediment
Term
3 domains of life
Definition
bacteria, eukarya, archaea
Term
protist
Definition
an informal term for any eukaryotic organism that is not an animal, plant or fungus
Term
"the holy trinity of marine biology"
Definition
adaptation, zonation and diversity
Term
what causes diversity among marine bio?
Definition
ecological diversity leads to species diversity
Term
different types of diversity
Definition
ecological/habitat, DNA, species
Term
4 goals of survival
Definition
1. find food. 2. avoid being food. 3. mate successfully. 4. raise babies to adulthood
Term
streamlining
Definition
adaptation of fish to swim fastest/most effectively; pressure drag--frictional frag--vortex drag, bullet shaped, tuna
Term
air bladders
Definition
storage of oxygen in kelp (and other organisms) to stay buoyant; organisms without air bladders must "just keep swimming" to stay afloat
Term
physical support adaptation
Definition
skeleton of large whales cannot stay open on their own-when beached, it collapses almost immediately and crushes them so they suffocate:(
Term
temperature adaptations
Definition
blubber or fur coat to keep organisms warm
Term
ecological tolerance
Definition
graphic that shows how most organisms are in the optimum range zone of middle temperatures and very few are in the zone of physiological stress (organisms that are probably have a special adaptation) and none are in the zone of intolerance (too hot or too cold of temperatures)
Term
cause of adaptations
Definition
stress on the system that allows some organisms to thrive and others to die
Term
salinity adaptations
Definition
albatross system of filtering water and oozing salt out its head, super concentrated urine and/or osmoregulation
Term
osmoregulation
Definition
process of concentrating salt and minimizing water lost to keep from dehydration
Term
bioluminescence
Definition
ability of some deep-sea organism to create their own light to attract mates and prey
Term
zonation
Definition
differentiation of parts of the ocean based on chemical and physical properties
Term
planktonic
Definition
organisms that weakly swim or float, ex: jellyfish
Term
benthic
Definition
live within or just above the ocean floor and do not swim-may crawl or glide or not move at all; ex: lobsters, coral
Term
nektonic
Definition
powerful swimmers; ex: whales, sharks
Term
rocky shoreline communities/zonation
Definition
very vertical, separated from supra upper, middle and lower tidal (and sublittoral at the very deep areas) ranges
Term
chemosynthesis
Definition
use sulfur compounds to do a very similar job to photosynthesis, occurs around mid-ocean ridges
Term
autotroph
Definition
organism that makes its own food, photosynthesizers
Term
heterotroph
Definition
cannot make its own food so it consumes others for nutrition and sustenance
Term
photosynthesis equation
Definition
6CO2+6H20+sunlight=C6H12O6+6O2
Term
respiration equation
Definition
6O2+C6H12O6=6CO2+6H20+energy
Term
what does the fossil record demonstrate?
Definition
1. life forms have gotten increasingly more complicated over time-used to be much simpler. 2. some organisms have gone extinct. 3. some organisms have remained practically unchanged over eons (ex: horseshoe crab), evolutionary stability
Term
convergent evolution
Definition
explains these obvious similarities among such disparate species; the fin or flipper is ideal for locomotion through water, no common ancestor but they have very similar traits that are used for relatively similar tasks
Term
Alfred Wallace and Charles Darwin
Definition
fathers of evolution
Term
struggle to survive
Definition
acts as the "selective breeder" in nature
Term
survival of the fittest
Definition
those well-adjusted to the environmental conditions had a better chance of survival than those that were ill-adjusted
Term
Charles Darwin's "Origin"
Definition
1. genetic variation. 2. groups tend to reproduce in geometric ratio 3. numbers of species remain relatively constant. 4. struggle for existence. 5. survival of the fittest.
Term
natural selection
Definition
process of "survival of the fittest" over many years and generations
Term
evolution
Definition
changes in populations over time
Term
main cause of extinction
Definition
extreme and/or sudden environmental change(s)
Term
extirpation
Definition
all organisms leave an area
Term
Gregor Mendel
Definition
did experiments on peas to determine dominant and recessive traits, father of modern genetics
Term
hybridization
Definition
the process of an animal or plant breeding with an individual of another species or variety
Term
quote from the "Forest of the Deep" video that Haynes loves
Definition
“the legacy of a brutal year will be generations of storm-tested genes”
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