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File:Glacier cross-section.jpg

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Original file (2,120 × 2,816 pixels, file size: 1.34 MB, MIME type: image/jpeg)

Summary

Description
English: A cross-section through the Stanley Glacier, Yoho National Park, British Columbia, Canada; taken from within a cave. The dark layer at the base is around 20cm in thickness.

Response to user questions from 130.20.3.152

  • The floor of the ice cave appears to be ice/snow with some rock debris interspersed - is this correct?
    Only towards the edges; the middle of the cave was bedrock, washed smooth.
  • There appear to be distinctive bands of fine debris starting at 40 cm up and continuing periodically even to the top of the photo. Is that impression consistent with your first hand observation?
    Yes, the darker bands were sandy, I think; there were larger clasts caught up in the ice too
  • The dark 20-cm band of ice at the bottom appears on close inspection to be fairly transparent. When you look at it closely it appears the rock surface under the ice layer is relatively rough (as opposed to scoured smooth). Is that impression consistent with your first hand observation?
    I don't think that one can see the rock surface itself. The bottom will be clearer due to the pressure producing partial melting at the base; see .
Date
Source Own work
Author Smith609
Other versions
Camera location51° 10′ 50″ N, 116° 03′ 10″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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inception

August 2009

coordinates of the point of view

51°10'50.00002"N, 116°3'10.00001"W

exposure time

0.05882352941176470588 second

focal length

5.7 millimetre

media type

image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current01:14, 21 August 2009Thumbnail for version as of 01:14, 21 August 20092,120 × 2,816 (1.34 MB)Smith609Rotation
01:11, 21 August 2009Thumbnail for version as of 01:11, 21 August 20092,816 × 2,120 (1.39 MB)Smith609{{Information |Description={{en|1=A cross-section through the Stanley Glacier, Yoho National Park, British Columbia, Canada; taken from within a cave. The dark layer at the base is around 20cm in thickness.}} |Source=Own work by uploader |Author=[[User:S

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