GLACIERS Chapter 18.
Types of glacier
Ice Sheets: In arctic and polar regions with cold air temperature ice
accumulates over wide areas. Depth of thousands of meters.
Example: Greenland and Antarctica.
Alpine Glacier: In mountains with cold air temperat
aggradation: alluvium deposits elevating the stream bed, occurs in areas in which
the supply of sediment is greater than the amount of material that the system is able
Radial Drainage Flows from High peek(center/crater) to lower,Water flows a
Test 2 geog 274
Weathering (wind, water, ice)
(chemical or physical) can fragment rock but does NOT transport rock material.
For rock to move another agent is required: gravity or one of the fluid agents
(running water, air/wind,waves, glacial ice.) trans
Earths crust: 47% oxygen,28% silicone, the rest other minerals/metals.
New landforms are created by endogenic(coming from within a system) system via:
volcanic and tectonic activity.
Existing landforms are degraded and destroyed by the exogenic (coming f
Types of Ecosystem
Terrestrial distinguished by vegetation
Aquatic distinguished by water salinity
Major terrestrial ecosystems on regional or sub-continental level.
Biota(living things) adapted to environment.
Global distribution parallels lati
Of plants, animal, micro organisms
Continuousis its unbroken, continuous distribution
Cosmopolitan species distributed widely
ex: a plant that you can find everywhere in the world
ex: Plantago major
one or m
Soil: Unconsolidated. Mineral and/or organic material. Occurs naturally on surface.
Less than 2 mm in diameter. Anything bigger is coarse fragment
(Surface soil is different then soil bellow, soil is thinner on steep slopes)
Pedon: 3D column of soil.
Volcanic and tectonic landforms
Landscapes and landforms.
Surface configuration of crust.
Composed of individual landforms.
Largely determined by variations in rock type.
Initial New landforms are created by endogenic(coming f
Geog 290 i w 2011
Midterm Exam, Geog 290, Section 'A
In the space provided, define and give examples of ten (10) of the following terms. 10 x 3 pts ea = 30 pts
2. Mangrove forests: I , I f, _ 51,
Revise (color of soils?)
Ah: rich in organic matter- mineral
Ae: clay particles oxides of aluminum and iron
B : silicate clay sequioxides
C: weathered parent material, unaltered regolith
Physical, chemical and biological processes that change parent mater