1. Skip to navigation
  2. Skip to content
  3. Skip to sidebar


Callan Bentley's Snapshots

Go to page:
  1. A closer look
  2. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Each black (or white) bar on this stick is 10 cm tall.



  3. A closer look
  4. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Here's another GigaPan, taken from slightly further uphill (west): gigapan.com/gigapans/162340



  5. Windmill

    Snapshot Title: Windmill
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    There's a line of these turbines all along the edge of the Allegheny Front.



  6. GigaPanoMobile

    Snapshot Title: GigaPanoMobile
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    The mobile GEODE/MAGIC GigaPan field unit, parked at the scene.



  7. Coal seam
  8. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Each of the black & white bars on this stick are 10 cm long (tall).



  9. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Massanutten Sandstone
    Image Owner: Callan Bentley



    Description:

    Examine a sample of rock from this site with this macro GigaPan: gigapan.com/gigapans/126687



  10. Cross bedding

    Snapshot Title: Cross bedding
    Taken by: Callan Bentley

    Image: Massanutten Sandstone
    Image Owner: Callan Bentley



    Description:

    Currents traveling from left to right.



  11. Fold

    Snapshot Title: Fold
    Taken by: Callan Bentley

    Image: Mt. Louis, Banff National Park, Alberta
    Image Owner: Callan Bentley



    Description:

    Bedding curves around to the left



  12. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: "Breccia Wall," Antietam Formation, SE Boyce quadrangle, Virginia
    Image Owner: Callan Bentley



    Description:

    Check out a hand-sample of this rock with this macro GigaPan: gigapan.com/gigapans/148604



  13. Hiker

    Snapshot Title: Hiker
    Taken by: Callan Bentley

    Image: Helen Lake stromatolites and Cirque Peak, Banff National Park, Alberta, Canada.
    Image Owner: Callan Bentley



    Description:

    Headed up Cirque Peak.



  14. Hikers

    Snapshot Title: Hikers
    Taken by: Callan Bentley

    Image: Helen Lake stromatolites and Cirque Peak, Banff National Park, Alberta, Canada.
    Image Owner: Callan Bentley



    Description:

    Headed up Cirque Peak.



  15. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Archean gneiss, Gallatin Range, Montana
    Image Owner: Callan Bentley



    Description:

    This bar is 1 cm long.



  16. Intraclast vein

    Snapshot Title: Intraclast vein
    Taken by: Callan Bentley

    Image: Thin Section of Deformed Quartzite with Small Pebbles
    Image Owner: Paul Karabinos



    Description:

    A thin vein of quartz (parallel to tiny fracture set cutting across this clast's parent lithology). A nice little example of relative dating.



  17. Scratch

    Snapshot Title: Scratch
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    Like the other specimen shown here, this one can be scratched with a fingernail.



  18. Scratch

    Snapshot Title: Scratch
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    This one is really easy to scratch.



  19. Two cleavage planes

    Snapshot Title: Two cleavage planes
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    ...can be seen intersecting here.



  20. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    1 cm



  21. Border Patrol

    Snapshot Title: Border Patrol
    Taken by: Callan Bentley

    Image: Cristo Rey Mountain
    Image Owner: Joshua Villalobos



    Description:

    Common sight at Cristo Rey.



  22. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    Another cross-sectional view.



  23. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    A nice tube-top showing how the formerly-mucus-lined burrow edge is weathering away faster than the surrounding matrix, and faster than the burrow-fill material.



  24. Sand grains

    Snapshot Title: Sand grains
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    I love the fact that you can see individual grains of sand here!



  25. Cochoidal fractures

    Snapshot Title: Cochoidal fractures
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    Breaking little quartz sand grains.



  26. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    Viewed end-on (map view).



  27. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    Viewed in cross-section. Originally, this would have been vertically oriented.



  28. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback



    Description:

    1 cm.



  29. The trail

    Snapshot Title: The trail
    Taken by: Callan Bentley

    Image: Looking south from Waterton
    Image Owner: Callan Bentley



    Description:

    Up to Carthew Pass/ Alderson Summit.



  30. Summit Lake

    Snapshot Title: Summit Lake
    Taken by: Callan Bentley

    Image: Looking south from Waterton
    Image Owner: Callan Bentley



    Description:

    Not especially well named, considering we're looking down on it.



  31. Link to a close-up shot

    Snapshot Title: Link to a close-up shot
    Taken by: Callan Bentley

    Image: Miette Group Graded Bedding
    Image Owner: Aaron M. Barth



    Description:

    Here's a great example of a graded bed from this outcrop: blogs.agu.org/mountainbeltway/files/2014/08/IMG_3101.jpg Will open in a new tab or window



  32. Structural data

    Snapshot Title: Structural data
    Taken by: Callan Bentley

    Image: Miette Group slate, Trans-Canada Highway and Icefields Parkway junction, Banff National Park
    Image Owner: Callan Bentley



    Description:

    Bedding and cleavage are parallel at this part of the outcrop: Both are oriented 125°/57° (right-hand rule).



  33. Pothole

    Snapshot Title: Pothole
    Taken by: Callan Bentley

    Image: Natural Bridge, Canada 2
    Image Owner: Aaron M. Barth



    Description:

    Signature of erosion by sustained currents (vortices)



  34. Cleavage

    Snapshot Title: Cleavage
    Taken by: Callan Bentley

    Image: Natural Bridge, Canada 2
    Image Owner: Aaron M. Barth



    Description:

    Spaced cleavage planes crop out nicely here.



  35. Bedding traces

    Snapshot Title: Bedding traces
    Taken by: Callan Bentley

    Image: Natural Bridge, Canada 2
    Image Owner: Aaron M. Barth



    Description:

    As viewed on the cleavage plane.



  36. Half of a dog

    Snapshot Title: Half of a dog
    Taken by: Callan Bentley

    Image: Natural Bridge, Canada 2
    Image Owner: Aaron M. Barth



    Description:

    Half a man's best friend.



  37. Bioturbation

    Snapshot Title: Bioturbation
    Taken by: Callan Bentley

    Image: Striations in Eldon Formation, exposed near Athabasca Glacier.
    Image Owner: Callan Bentley



    Description:

    Mottled bedding planes where critters plowed through them.



  38. Tension gashes

    Snapshot Title: Tension gashes
    Taken by: Callan Bentley

    Image: Striations in Eldon Formation, exposed near Athabasca Glacier.
    Image Owner: Callan Bentley



    Description:

    Orange veins of calcite.



  39. Striation

    Snapshot Title: Striation
    Taken by: Callan Bentley

    Image: Striations in Eldon Formation, exposed near Athabasca Glacier.
    Image Owner: Callan Bentley



    Description:

    with small-scale "chatter" marks.



  40. Loony

    Snapshot Title: Loony
    Taken by: Callan Bentley

    Image: Striations in Eldon Formation, exposed near Athabasca Glacier.
    Image Owner: Callan Bentley



    Description:

    The Canadian one-dollar coin serves as a sense of scale.



Go to page: