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Callan Bentley's Snapshots

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  1. Megaflame structure 1

    Snapshot Title: Megaflame structure 1
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    This red layer is contorted in 3-4 m tall flame structures, with a wavelength of 5-8 m. This is best viewed on a zoomed out view, such as this GigaPan: gigapan.com/gigapans/162340



  2. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  3. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  4. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  5. Fold hinge

    Snapshot Title: Fold hinge
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  6. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    This black bar is 10 cm tall.



  7. Coal

    Snapshot Title: Coal
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    There is a bituminous layer in here.



  8. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Here's a detailed GigaPan of this face: gigapan.com/gigapans/162341



  9. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

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



  10. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Here's a detailed GigaPan of this face: gigapan.com/gigapans/162341



  11. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Pottsville Group 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



  12. Windmill

    Snapshot Title: Windmill
    Taken by: Callan Bentley

    Image: Pottsville Group 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.



  13. GigaPanoMobile

    Snapshot Title: GigaPanoMobile
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

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



  14. Coal seam

    Snapshot Title: Coal seam
    Taken by: Callan Bentley

    Image: Pottsville Group roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    There is a bituminous layer here.



  15. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Pottsville Group 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).



  16. 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



  17. Cross bedding

    Snapshot Title: Cross bedding
    Taken by: Callan Bentley

    Image: Massanutten Sandstone
    Image Owner: Callan Bentley



    Description:

    Currents traveling from left to right.



  18. 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



  19. 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



  20. 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.



  21. 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.



  22. 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.



  23. 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.



  24. 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.



  25. Scratch

    Snapshot Title: Scratch
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    This one is really easy to scratch.



  26. 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.



  27. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Gypsum vs. talc
    Image Owner: Callan Bentley



    Description:

    1 cm



  28. Border Patrol

    Snapshot Title: Border Patrol
    Taken by: Callan Bentley

    Image: Cristo Rey Mountain
    Image Owner: Joshua Villalobos



    Description:

    Common sight at Cristo Rey.



  29. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Another cross-sectional view.



  30. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    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.



  31. Sand grains

    Snapshot Title: Sand grains
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

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



  32. Cochoidal fractures

    Snapshot Title: Cochoidal fractures
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Breaking little quartz sand grains.



  33. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Viewed end-on (map view).



  34. Skolithos

    Snapshot Title: Skolithos
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

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



  35. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Skolithos
    Image Owner: Robin Rohrback-Schiavone



    Description:

    1 cm.



  36. 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.



  37. 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.



  38. 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



  39. 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).



  40. 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)



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