anything which disturbs the surface and moves material will lead to some mechanical weathering Rocks in a river Obviously, the energy of the river directly affects what is being moved DIGRESS TO: bed load vs. suspended load Rivers in flood stage have greater energy Can move larger pieces with greater force Therefore the potential for mechanical weathering is greater Moving sand and silt acts like sandpaper on the larger rocks in the river bed Also on each other Rocks hitting other rocks can break Making smaller pieces which can then become part of the suspended load Rock falls Usually break up when they hit bottom Ice - the big one Water has highly unusual properties REVIEW: water and magic Stress the density anomaly Water expands 9% when it freezes If it freezes in a confined space it can exert a tremendous outward force against walls Up to 4.3 million pounds/ft 2 This should be enough to break just about anything!
(bed load vs. suspended load Rivers in flood stage; have; greater energy) Context(bed load vs. suspended load Rivers in flood stage have,List([196, 250))):(the energy of the river; directly affects; what is being moved DIGRESS TO) Context(the energy of the river directly affects bed load vs. suspended load Rivers in flood stage have,List([123, 250))):(anything which disturbs the surface and moves material; will lead; to some mechanical weathering Rocks) Context(anything which disturbs the surface and moves material will lead the energy of the river directly affects bed load vs. suspended load Rivers in flood stage have,List([0, 250))):(anything; disturbs; the surface and moves material) Context(bed load vs. suspended load Rivers in flood stage have,List([196, 250))):(bed load; suspended; load Rivers; T:in flood stage) (it; freezes; L:in a confined space) (bed load vs. suspended load Rivers in flood stage; Can move; larger pieces) (each other Rocks; hitting; other rocks) (the suspended load; falls; T:Usually) (it; can exert; a tremendous outward force; against walls) (the potential for mechanical weathering; is; greater) (Water; has; highly unusual properties REVIEW) Context(Water has,List([640, 649))):(highly unusual properties; REVIEW; ) (smaller pieces; can become; part of the suspended load; T:then) (walls; ft; Up to 4.3 million pounds) Context(walls ft,List([842, 875))):(2 This; should be; enough to break just about anything) (it; freezes; ) (they; hit; bottom)
bed load vs. suspended load Rivers in flood stage have,List([196, 250)) the energy of the river directly affects bed load vs. suspended load Rivers in flood stage have,List([123, 250)) anything which disturbs the surface and moves material will lead the energy of the river directly affects bed load vs. suspended load Rivers in flood stage have,List([0, 250)) bed load vs. suspended load Rivers in flood stage have,List([196, 250)) Water has,List([640, 649)) walls ft,List([842, 875))
bed load vs. suspended load Rivers in flood stage the energy of the river anything which disturbs the surface and moves material anything bed load it bed load vs. suspended load Rivers in flood stage each other Rocks the suspended load it the potential for mechanical weathering Water highly unusual properties smaller pieces walls 2 This it they
have directly affects will lead disturbs suspended freezes Can move hitting falls can exert is has REVIEW can become ft should be freezes hit
greater energy
what is being moved DIGRESS TO
to some mechanical weathering Rocks
the surface and moves material
load Rivers T:in flood stage
L:in a confined space
larger pieces
other rocks
T:Usually
a tremendous outward force against walls
greater
highly unusual properties REVIEW
part of the suspended load T:then
Up to 4.3 million pounds
enough to break just about anything
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