STREAMS AND GLACIERS Flashcards

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1
Q

YOUTHFUL STAGE

A

THE STREAM IS MOVING QUICKLY AND ERODING THE SEDIMENTS AS IT TRAVELS DOWN STREAM. FOUND AT THE TOP OF MOUNTAINS, AND IT TRAVELS A FAIRLY STRAIGHT PATH.

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2
Q

MATURE STAGE

A

STREAM IS NOW AT THE FLOOR OF THE VALLEY AND IS MOVING SLOWLY. THE STREAM IS NOW FINDING THE PATH THAT IS EASIEST TO TRAVEL, WHICH CAUSES THE STREAM TO MEANDER

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3
Q

POINT BAR

A

AREA WHERE SEDIMENT IS DEPOSITED.

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4
Q

OXBOW LAKES

A

OLD LAKES THAT FORM FROM THE STREAM MATURING AND EENTUALLY CUTTIING OFF AN AREA OF THE STREAM.

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5
Q

horizontal sorting

A

when a stream or river enters a large body of water like akes and rivers, velocity slows and particals drop out of suspension, the further out the smaller the particles.

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6
Q

graded bedding

A

a type of layering in which larger particles are at the bottom of each bed, and the particle size decreases towards the top.

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7
Q

MOUTH OF A RIVER

A

PART OF RIVER WHERE RIVER EMPTIES INTO ALRGE BODY OF WATER

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8
Q

DELTA

A

DEPOSIT OF SEDIMENT AT MOUTH OF RIVER DUE TO RIVER LOSING ITS CARRYING POWER AS AT EMPTIES INTO A LARGE BODY OF WATER

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9
Q

BEDLOAD

A

ROCK SUSPENDED AND CARRYED BY A STREAM

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10
Q

TRIBUTARY

A

STREAMS THAT FEED INTO LARGER STREAMS AND RIVERS

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11
Q

WATERSHED

A

HIGH AREA WHERE WATER CAN EITHER TRAVEL LEFT OR RIGHT

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12
Q

DRAINAGE BASIN

A

AREA DRAINED, BELOW A WATERSHED

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13
Q

TRELLIS DRAINAGE PATTERN

A

WATER RUNS DOWN A MOUNTAIN RANGE, DOWN TO THE VALLEY FLOOR. IT COLLECTS ON THE VALLEY FLOOR, AND FLOWS TO A LARGER BODY OF WATER

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14
Q

DENDRITIC DRAINAGE PATTERN

A

LOOKS LIKE BRANCHING OF TREE ROOTS. DEVELOPS IN AREAS WHERE MATERIAL UNDERNEATH IT IS THE SAME AND HORIZONTAL.

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15
Q

RECTANGULAR DRAINAGE PATTERN

A

FOUND IN FRACTURED ROCS. SREAM TURNS IN SHARP ANGLES DUE TO ROCK FRACTURES.

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16
Q

WHAT ARE THE TWO TYPES OF GLACIERS?

A

CONTINENTAL AND VALLEY/ALPINE

17
Q

STATISTICAL GLACIERS

A

85% OF ALL GLACIERS ARE IN ANTARTICA, AND 10 PERCENT IN GREENLAND. 5 % ARE IN MOUNTAIN TOPS

18
Q

VALLEY/ALPINE GLACIERS

A

FORM INBETWEEN MOUNTAINS OR AT THE PEEK U.S HAS ONLY VALLEY GLACIERS

19
Q

WHAT DO MELTED WATER FROM GLACIERS FORM?

A

BRAIDED STREAMS

20
Q

SNOWLINE

A

AS SMALL AS THE GLACIER IS GOING TO GET

21
Q

TILL

A

GLACIER SEDIMENTS

22
Q

ERRATICS

A

BOULDERS DROPPED OF BY A GLACIER AS IT MELTS

23
Q

TERMINAL MORAIN

A

WHEN A GLACIER MELTS BACK IT LEAVES A LARGE DEPOSIT OF UNSORTED TILL.

24
Q

OUTWASH PLAIN

A

FLAT LAND BELOW TERMINAL MORAIN. WATER FROM THE ICE DRAINS INTO SORTED SEDIMENT

25
Q

LATERAL MORAIN

A

AMONG THE SIDES OF A GLACIER TILL BUILDS UP. WHEN A GLACIER LEAVES WHEN A LACIWER RECEDES, A TERMINAL MORAIN IS LEFT AT THE BOTTOM.

26
Q

DRUM LINE

A

ELONGATED HILLS THAT SHOW DIRECTIONG OF GLACIER MOVEMENT