Geo Exam 2

Front 1

sediment deposited first in stream

Back 1

coarsest

Front 2

sed. rocks- textural features most closely related to transport by water

Back 2

size sorting and rounding

Front 3

2 most important processes transforming loose sediments into hard

Back 3

compaction and cementation

Front 4

coral rich limestone block cemented by younger limestone depostites-formed on

Back 4

ocean side of reef

Front 5

graded bedding in clastic sedimentary rocks caused by

Back 5

slowing down of water currents

Front 6

marine regression

Back 6

shallower water sediments deposited on deeper sediments

Front 7

metamorphic rocks found at

Back 7

convergent plate boundries and near igneous intrusions

Front 8

least abundant type of rock in earths crust

Back 8

sedimentary

Front 9

type of metamorphism affects greatest volume of rock

Back 9

regional

Front 10

this happens w/ reigonally metamorphosed rock

Back 10

foliation

Front 11

high confining pressures means this for minerals

Back 11

denser minerals

Front 12

metamorphism of material down subduction zone means these conditons

Back 12

low temp high pressure

Front 13

hornfells commonly associated w/ which kind of metamorphism

Back 13

contact metamorphism

Front 14

isograd

Back 14

line on map connecting points of 1 occurence of material in metamorphic rocks

Front 15

this kind of rock indicates partial melting

Back 15

migmatite

Front 16

metamorphic rock not from shale

Back 16

marble

Front 17

high temp end of sequence of minerals whose low temp end is chlorite

Back 17

silimanite isograd

Front 18

ocean contain this much of worlds water

Back 18

96%

Front 19

groundwater is this much of the worlds freshwater

Back 19

22%

Front 20

sandstone w/ highest porosity has this characteristic

Back 20

well sorted

Front 21

permeability

Back 21

measure of rocks water-transmitting capacity

Front 22

saturated zone of groundwater

Back 22

pore spaces completely full

Front 23

unsaturated zone of groundwater

Back 23

pore spaces not completely full

Front 24

top of the saturated zone

Back 24

water table

Front 25

ground water moves faster through____ than ____

Back 25

loose sand than clay

Front 26

best groundwater reservoir

Back 26

high permeability and high porosity

Front 27

san andreas fault of CA

Back 27

dextral strike slip fault

Front 28

alpine fault of New Zealand

Back 28

sinistral strike slip fault

Front 29

fault where hanging wall block moved upwards relative to footwall block

Back 29

reverse fault

Front 30

this is always perpindicular to strike-measured in a vertical plane- and is the steepest angle of slope for a particular plane

Back 30

dip

Front 31

erosional surface separating unaltered parallel sedimentary rocks

Back 31

disconformity

Front 32

erosional or depositional surface between underlying ingneous rocks and overlying sedimentary rocks

Back 32

nonconformity

Front 33

sediment diameter of 1/16 mm to 2 mm

Back 33

sand

Front 34

group of processes that convert loose sediment into rock

Back 34

lithification

Front 35

composed of fragments of preexisiting rocks that have been cemented together

Back 35

elastic sedimentary rocks

Front 36

sedimentary rocks cover this much of earths land surface

Back 36

75%

Front 37

these are dense masses of sediment-laden water that flow down slope along sea floor

Back 37

turbidity currents

Front 38

rate of increase of pressure w/ depth

Back 38

geobaric gradient

Front 39

polymorphys of Al2SiO5

Back 39

kyanite andalusite and sillimanite

Front 40

low pressure high temp metamorphism

Back 40

contact metamorphism

Front 41

this type of rock is associated w/ contact metamorphism

Back 41

hornfells

Front 42

this rock is associated w/ rocks being carried down subduction zone

Back 42

blue schist

Front 43

base of unsaturated zone

Back 43

water table

Front 44

measure of rock's water holding capacity

Back 44

porosity

Front 45

well that rises naturally above local level of aquifier

Back 45

artesian well

Front 46

compass orientation of direction of max inclination of bed

Back 46

strike

Front 47

spoon shaped fault concave upwards

Back 47

listric fault

Front 48

during folding this occurs and develops parallel to fold hinge plane

Back 48

tilation

Front 49

outermost layer of the earth strong and brittle and deforms elastically

Back 49

lithosphere

Front 50

portion of fold between adjacent fold hinge planes

Back 50

limb

Front 51

formula for force

Back 51

force= mass x acceleration

Front 52

formula for stress

Back 52

stress= force / area

Front 53

olivine turns into this when super heated

Back 53

talc

Front 54

zone around an igneous body with in which metamorphic changes have take place

Back 54

metamorphic aureole