lab 10

Question 1

attitude

Answer 1

orientation of a rock unit, surface( contact) or line relative to horizontal and or compass direction

Question 2

strike

Answer 2

compass bearing (line of discretion or trend) of a line formed by the intersection of a horizontal plane such as the surface of a lake and inclined surface (contact) or rock layers such as bed stratum or formation

Question 3

dip

Answer 3

angle between a horizontal plane, measured perpindiciular

Question 4

tension

Answer 4

lengthening

Question 5

compression

Answer 5

shortening

Question 6

shear

Answer 6

tearing and smearing

Question 7

dip slip

Answer 7

normal, reverse

Question 8

strike slip

Answer 8

right, left

Question 9

reverse

Answer 9

high angle dip slip

Question 10

thrust

Answer 10

low angle reverse fault

Question 11

anticlines

Answer 11

up

Question 12

synclines

Answer 12

down

Question 13

3 features

Answer 13

1. limb
2. fold axis
3. axis of fold

Question 14

anticline

Answer 14

oldest in center

Question 15

syncline

Answer 15

younger in center

Question 16

folded structures

Answer 16

basin downwarped, circular, oldest in center , anticline
dome upwarped, youngest in center syncline
monocline buried fault

Question 17

geologic maps

Answer 17

-show where rock strata occur at earths surface

Question 18

tectonic maps

Answer 18

movement history

Question 19

tectonstratatigrpahpic

Answer 19

basic map elements

Question 20

Precambrian

Answer 20

ancient rocks , 1200 and 1080 years ago

Question 21

Paleozoic ouachitan cycle

Answer 21

about 550 mya, ending 245, foreland

Question 22

gulf coast

Answer 22

began in Texas in late triassic about 220 Maya, mountain building event Laramie orogeny occurred in west Texas, event created the rocky mountains