Term
| What "recent" geologic event has had a profound effect on the entire Earth? |
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Definition
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Term
| What two "Texas geologice features" have formed since the last Ice Age? |
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Definition
| Chihuahuan Desert, Padre Island |
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Term
| How far to the East of Corpus Christi was the GOM Shorleline during the last IceAge? |
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Definition
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Term
| Which large creatures use to roam the C.C. area during the last Ice Age? |
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Definition
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Term
| Describe the history of the largest snowfalls for C.C.? |
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Definition
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Term
| What are snow flurries and how often do they occur in the Corpus Christi area? |
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Definition
| light snow that melts befor reaching the ground or not enough to acculmate and every two years we get a few flurries. |
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Term
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Definition
| is more dangerous than sleet and it is bigger balls that can damage property |
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Term
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Definition
| frozen raindrops or pellets that bounce upon impact of object |
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Term
| What is Freezing Rain? example? |
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Definition
| is the rain that freezes as soon as it hits the floor/ icicles on trees |
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Term
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Definition
| a deposit of ice crystals fromed when water vapor condenses at a temperature below freezing |
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Term
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Definition
| based on the rate of heat loss from exposed skin by the combined effects of wind and cold |
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Term
| What other planet, besides earth, has polar ice caps? |
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Definition
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Term
| Which moon has evidence of icebergs? |
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Definition
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Term
| What is a glacier and how does it form? |
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Definition
| system of moving (flowing) ice that form where more snow and ice accumulates each year than melts |
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Term
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Definition
| masses of ice that break of a glacier into the sea |
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Term
| What does Glacial Calving produce? |
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Definition
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Term
| How many glaciers from over sea ice? |
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Definition
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Term
| What fraction of an ice mass is below seawater for an average glacier? |
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Definition
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Term
| What are two major classifications of glaciers? |
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Definition
Valley(mountain or alpine)glaciers and
Continental glaciers |
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Term
| Describe a Valley ( Alpine or Mountain )Glaciers? |
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Definition
| ice "streams" confined to canyons and valleys of mountainous terrains (much smaller than continental glaicers) |
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Term
| Define a Piedmont glacier. |
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Definition
| valley glacier(s) that leaves a valley and coalesces at the base of a mountain. |
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Term
| Explain a Continental Glacier? |
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Definition
| Huge sheets of ice that cover a large part of earth's land mass. |
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Term
| Where is at least one place where Continental Glaciers (Ice sheets) can be found? |
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Definition
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Term
| What are smaller continental glaciers( ice sheets)? |
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Definition
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Term
| How much snowfall will equal an inch of rain? |
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Definition
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Term
| Generally, what percent of fresh snowfall is air? |
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Definition
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Term
| Describe the two methods that snow uses to become granular ice. |
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Definition
surface thawing and freezing
and compaction by burial |
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Term
| Can glacial ice be compared to a metamorpic rock? |
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Definition
| yes it is a metamorphic rock |
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Term
| How is Glacial ice a metamorphic rock? |
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Definition
| The compaction (pressure) caused by the great thicknesses of ice can change sediment (snow) into a metamorphic rock (ice) |
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Term
| What is firn? another name for it |
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Definition
| snow crystals that change to granular ice and recrystallized (neve) |
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Term
| What thickness must mountain ice obtain to form a glacier? |
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Definition
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Term
| What is the average movement rate for a glacier? |
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Definition
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Term
| What is Firn Limit? (snowline) |
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Definition
the boundary between two above zones
accumalition and wastage |
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Term
| Describe the formation and demise of glacial cervasses? |
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Definition
| cracks or openings on top of glacier where it descends over extremely steep slopes or curves |
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Term
| How long do glacial crevasses usually last? |
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Definition
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Term
| What is the difference between glacial striations and glacial polish? |
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Definition
| Glacial striations are the same as glacial polish but glacial polish is bedrock that is grinded to a polish by fine grains |
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Term
| How is rock flour produced and how does it end up as loess? |
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Definition
| from a glacier the flour is made and it becomes a loess when it meets a river |
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Term
| Explain the difference between U-shaped valleys and mountainous river valleys. |
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Definition
| U-shaped valleys are formed by glaciers |
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Term
| Describe a cirque and how is it formed? |
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Definition
| A bowl-shaped depression produced by glacial plucking at the head of a mountain valley |
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Term
| What effect has all this ice had on the landmass of Antarctica? |
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Definition
| It pushed it down below sealevel |
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Term
| What thickness of ice is found in Antarctica? |
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Definition
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Term
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Definition
| lakes formed by depressions left by large blocks of detached ice (continental glacier ) that later melted |
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