Lifes A Beach

Front 1

origination of ocean crust

Back 1

1. rock sweats, 2. channels form 3/ melt oozes slowly, 4. barriers block flow, 5. cracks open 6.melt flows quickly

Front 2

descriptive classification of coastal classification

Back 2

army corps of engineers 1977
looks like: mangrove coast, coral coast, rocky coast with limited beach, short barrier island shoreline, straight barrier island shoreline

Front 3

genetic classification

Back 3

geologic history, sea level changes, tectonic environments, glaciation, sediment supply, wave and tidal regime

Front 4

degree of modification

Back 4

modification by coastal process and geologic history
primary- form of coast is from land process (non marine)
secondary- form of coast is from marine processes

Front 5

land erosion coasts

Back 5

shaped by subaerial erosion and partly drowned by postglacial rise of sea level

Front 6

emergent coast

Back 6

flat sea floor, straight coastlines with barrier beaches, erosive features

Front 7

submergent coast

Back 7

ria coast- strike controlled river valleys
fjord-long- glacially eroded arm of sea

Front 8

mainland beach

Back 8

attached to the upland and is forming as the upland erodes

Front 9

mid atlantic ridge

Back 9

the rift boundary between two great crustal slabs and comprises a chain of volcanic mountains on the seafloor that continue to evolve wherever lava upwells and pushes the two plates away from each other

Front 10

trailing edge

Back 10

the eastern side of north american continent because it is tucked behind a continental mass that is drifting away from a rift zone

Front 11

till

Back 11

a complex mixture of unsorted mud, sand, and gravel that was deposited directly by a glacier

Front 12

moraine

Back 12

a glacial deposit composed of till that occasionally has layered sands and gravels

Front 13

drumlin

Back 13

an elongate hill, usually hundreds of yards in length and teardrop shaped in map view, that was deposited by a glacier and then overridden by it to produce a streamlined outline

Front 14

outwash

Back 14

sediment deposited by glacial meltwater and rivers draining melting ice- most common type are outwash plains

Front 15

glacial marine sediment

Back 15

a general term for glacially derived sediment that was deposited below sea level, including muds that were deposited by meltwater that issued from tunnels in glaciers that were below sea level

Front 16

overwash fans

Back 16

the bodies of storm sand deposited across an island

Front 17

ebb tidal deltas

Back 17

deltas built into the open ocean

Front 18

flood tidal deltas

Back 18

those built on the back side of a barrier island

Front 19

transgression

Back 19

the landward movement of coastal enviornments in response to sea level rise