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> Sediment Coring: Healy Icebreaker

A River Runs Through It

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Uploaded by: Steve_Marshall

On: 1116309592

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Description: A vast, rugged mountain range with a river running right through the middle of it (at least in the middle of this picture).

Another Trans-Alaskan ...

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Uploaded by: Steve_Marshall

On: 1116309334

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Description: Pipeline or Road?

The Alaskan Oil Pipeline?

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Uploaded by: Steve_Marshall

On: 1116309211

File Size: 14023

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Description: If the Alaskan Airlines magazine flight path was reasonably close to what was shown, we should have been flying fairly close to the oil pipeline as we got closer to south-central Alaska and Valdez. This picture was taken about 58 minutes into the flight, so those familiar with the flight and pipeline might know the answer as to whether this picture shows the pipeline, or a road. What do you think it is?

Fog or Smog?

tn_gallery_12_3_14374.jpg

Uploaded by: Steve_Marshall

On: 1116308902

File Size: 21454

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Description: The valley in the upper center of this picture seems to have a strange darkness to it. Is this fog or even maybe smog? Is there some other explanation?

Mountain Islands

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Uploaded by: Steve_Marshall

On: 1116308741

File Size: 26777

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Description: When I think of mountains, I think of long, linear ridges. This picture seems unusual because almost circular groups of mountains appear to pop out of the ground, giving them the appearance of being islands in a wide sea of land. What type of tectonic or other forces cause this pattern?

Same Glacier, but a Li...

tn_gallery_12_3_7676.jpg

Uploaded by: Steve_Marshall

On: 1116308411

File Size: 32495

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Description: Another shot of the glacier shown in "Now THIS is a Glacier!"

Now THIS is a Glacier

tn_gallery_12_3_9088.jpg

Uploaded by: Steve_Marshall

On: 1116308300

File Size: 37667

Comments: 0 / Views: 438

Description: No doubt about this one. This is definitely a glacier. Notice how it even looks like you can see it flowing. How do I know this is a glacier? How many different glacial features can you see? Compare the characteristics of this photograph with those that I wondered whether it was a lake or a glacier. How do they compare? How are they different?

Getting Taller

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Uploaded by: Steve_Marshall

On: 1116307732

File Size: 24834

Comments: 0 / Views: 476

Description: This shows the flight approaching even higher mountains. At 50 minutes into the flight, I'm assuming this is definitely part of the Chugach Mountains, but can it still be the Alaska Range?

Cracks in the Ice

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Uploaded by: Steve_Marshall

On: 1116307338

File Size: 6065

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Description: This was a closer shot of one of the lakes (?) shown in the "I can't take it anymore" picture. The pattern of these cracks seem to indicate ice breaking up like on a lake or a river, rather than cracks due to flow of ice in a glacier. Do you agree?

I Can't Take it An...

tn_gallery_12_3_2218.jpg

Uploaded by: Steve_Marshall

On: 1116307072

File Size: 13502

Comments: 0 / Views: 3492

Description: Now this one REALLY looks like a river or glacier where two "tributaries" meet. However, it again seems to have an end, and evidence of ice movement seems to be absent, so is this just a lake?

Even Longer and More N...

tn_gallery_12_3_9529.jpg

Uploaded by: Steve_Marshall

On: 1116306887

File Size: 17182

Comments: 0 / Views: 441

Description: Still just a frozen lake?

Perplexed Again

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Uploaded by: Steve_Marshall

On: 1116306751

File Size: 18799

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Description: It may be my imagination, but there seems to be at least a few houses in the valley towards the top of the picture. If so, does the frozen lake (?) ever impact them? Again, it almost seems as though this frozen feature may be a glacier, but there seems to be melting along the edges, and a lack of medial moraines and other flow characteristics of glaciers. The narrow valley indicates flow of ice or water though, so does this ice (or ice futher up the mountains) ever melt and run through this valley?

Mountains and Valleys

tn_gallery_12_3_8960.jpg

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On: 1116306498

File Size: 22593

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Description: The terrain seems to be getting even more rugged and a greater range of elevation (relief). This is about 46 minutes into the flight from Fairbanks heading south/southwest. Is this approaching the Chugach Range?

Another Large Lake?

tn_gallery_12_3_128.jpg

Uploaded by: Steve_Marshall

On: 1116305756

File Size: 18146

Comments: 0 / Views: 427

Description: Another one of those features that kept me guessing

Lake or Glacier?

tn_gallery_12_3_478.jpg

Uploaded by: Steve_Marshall

On: 1116305642

File Size: 10478

Comments: 0 / Views: 432

Description: Repeated features like the one shown towards the top of this picture had me asking the most questions trying to figure out what I was seeing. This is definitely some solid ice, and it is in kind of a valley, but it doesn't have the flow features that glaciers usually have. I think this is just a frozen lake, but what do you think?

Another Good Example o...

tn_gallery_12_3_3492.jpg

Uploaded by: Steve_Marshall

On: 1116305196

File Size: 14936

Comments: 0 / Views: 432

Description: This picture shows a good example of a drainage basin, drainage pattern, and different ordered streams.

A Lot to Be Seen in th...

tn_gallery_12_3_5072.jpg

Uploaded by: Steve_Marshall

On: 1116305012

File Size: 9498

Comments: 0 / Views: 447

Description: In the center of this picture are some small, rounded lakes. I believe these are kettle lakes. What causes kettle lakes? Does this look like an area where kettle lakes would be found?
Also notes the cliff-like features in the bottom third of the photo. These look like very steep cliffs or ridges. Thirty eight minutes into the flight, we might be getting closer to the more tectonically active area of Alaska. Could these be localized ridges are scarps caused by faults?

Kettle Lakes?

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Uploaded by: Steve_Marshall

On: 1116304637

File Size: 8162

Comments: 0 / Views: 489

Description: The shape and size of the lake shown in this picture reminds me of kettle lakes that form in glacial outwash. Could that be what these are?

What Formed This Lake?

tn_gallery_12_3_463.jpg

Uploaded by: Steve_Marshall

On: 1116304527

File Size: 10256

Comments: 0 / Views: 445

Description: This was a large frozen lake seen about 36 minutes into the Fairbanks-Seattle flight. It seems so unusually large and rounder compared to other near-by lakes that I'm very curious about what may have formed it. It also appears to be at a relatively high altitude, not like at the bottom of a deep valley.

Is this a Lake?

tn_gallery_12_3_5336.jpg

Uploaded by: Steve_Marshall

On: 1116304256

File Size: 12188

Comments: 0 / Views: 382

Description: I had some definite trouble figuring out what I was seeing here. This looks like a river channel, and there's evidence of flowing water, especially towards the bottom of the picture, but there was a definite beginning and end to this body of water. Is it a lake? Is it a river that flows completely when snow melts? Is it both? This was about 36 minutes into the flight from Fairbanks to Seattle if that helps with location.



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