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Callan Bentley's Snapshots

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  1. Better exposure?

    Snapshot Title: Better exposure?
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    I shot another GigaPan right after this one, and exposed it less, meaning that this area (South Page Valley) is more detailed and interesting:
    gigapan.com/gigapans/127564



  2. South Fork

    Snapshot Title: South Fork
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    of the Shenandoah River



  3. Page Valley

    Snapshot Title: Page Valley
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    I picked this exposure to bring out the details here in the South Page Valley. Roughly the same view can be seen in this more-exposed GigaPan:
    gigapan.com/gigapans/127565



  4. Sharp contact

    Snapshot Title: Sharp contact
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    My Swiss Rock Hammer deduces that the contact between the overlying Massanutten Sandstone and the underlying unit (presumably the upper Martinsburg Formation) is uncommonly sharp here.



  5. "The Knob"

    Snapshot Title: "The Knob"
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    A distinctive landform above Mt. Jackson, Virginia - distinctive and easy to spot from I-81.



  6. Contact

    Snapshot Title: Contact
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    between Massanutten Sandstone and underlying rock unit (Cub Sandstone / upper Martinsburg?).



  7. The Knob

    Snapshot Title: The Knob
    Taken by: Callan Bentley

    Image: View SSW from Duncan Knob, George Washington National Forest, Virginia
    Image Owner: Callan Bentley



    Description:

    above Mt. Jasckson, Virginia



  8. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black rectangle along the side of this pencil measures 1 centimeter in length.



  9. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black rectangle along the side of this pencil is 1 centimeter in length.



  10. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black rectangle along the side of this pencil is 1 centimeter in length.



  11. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black rectangle is 1 cm long.



  12. Sign, sign

    Snapshot Title: Sign, sign
    Taken by: Callan Bentley

    Image: Chapman's Mill, Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Really: everywhere, a sign.



  13. Sign, sign

    Snapshot Title: Sign, sign
    Taken by: Callan Bentley

    Image: Chapman's Mill, Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Everywhere a sign.



  14. Plume

    Snapshot Title: Plume
    Taken by: Callan Bentley

    Image: Chapman's Mill, Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    This plumose structure shows joint propagation from right to left.



  15. Scale pencil

    Snapshot Title: Scale pencil
    Taken by: Callan Bentley

    Image: Chapman's Mill, Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Black bars are each one centimeter in length.



  16. Sand

    Snapshot Title: Sand
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#3 of 8)
    Image Owner: Callan Bentley



    Description:

    Want to see a petri dish full of sand from this location in "macro" GigaPan view? Try this:
    gigapan.com/gigapans/126987



  17. Sand

    Snapshot Title: Sand
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#2 of 8)
    Image Owner: Callan Bentley



    Description:

    Want to see a petri dish full of sand from this location in "macro" GigaPan view? Try this:
    gigapan.com/gigapans/126987



  18. Sand

    Snapshot Title: Sand
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#8 of 8)
    Image Owner: Callan Bentley



    Description:

    Want to see a petri dish full of sand from this location in "macro" GigaPan view? Try this:
    gigapan.com/gigapans/126987



  19. Skyline Drive

    Snapshot Title: Skyline Drive
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Take this road north through Shenandoah National Park.



  20. Transport direction?

    Snapshot Title: Transport direction?
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Based on the evidence in this roadcut, if this sign were referring to the direction of transport of Blue Ridge rocks, would it be correct, off by 90 degrees, or completely opposite (off by 180 degrees...



  21. Cleavage

    Snapshot Title: Cleavage
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Is it dipping steeply? moderately? shallowly?
    In what direction?



  22. Cairn

    Snapshot Title: Cairn
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Who built this? With what purpose?



  23. Cleavage

    Snapshot Title: Cleavage
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Is it dipping steeply? moderately? shallowly?
    In what direction?



  24. Vulture

    Snapshot Title: Vulture
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    You can count the secondaries on its wing!



  25. Pod

    Snapshot Title: Pod
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    of epidotized sandstone



  26. Pod

    Snapshot Title: Pod
    Taken by: Callan Bentley

    Image: Rockfish Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    of epidotized sandstone



  27. Sandstone

    Snapshot Title: Sandstone
    Taken by: Callan Bentley

    Image: Faulted Massanutten Formation sandstone at Blue Hole
    Image Owner: Callan Bentley



    Description:

    To view a sample of the Massanutten Sandstone in macro detail, try this:
    gigapan.com/gigapans/126687



  28. Sandstone

    Snapshot Title: Sandstone
    Taken by: Callan Bentley

    Image: Veach Gap Anticline 1
    Image Owner: Alan Pitts



    Description:

    To view a sample of the Massanutten Sandstone in macro detail, try this:
    gigapan.com/gigapans/126687



  29. Sandstone

    Snapshot Title: Sandstone
    Taken by: Callan Bentley

    Image: Veach Gap Anticline 2
    Image Owner: Alan Pitts



    Description:

    To view a sample of the Massanutten Sandstone in macro detail, try this:
    gigapan.com/gigapans/126687



  30. Sandstone

    Snapshot Title: Sandstone
    Taken by: Callan Bentley

    Image: Fort Valley from Buzzard Rocks
    Image Owner: Alan Pitts



    Description:

    To view a sample of the Massanutten Sandstone in macro detail, try this:
    gigapan.com/gigapans/126687



  31. Hinge

    Snapshot Title: Hinge
    Taken by: Callan Bentley

    Image: Anticline in Veach Gap
    Image Owner: Callan Bentley



    Description:

    Line of maximum inflection



  32. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Anticline in Veach Gap
    Image Owner: Callan Bentley



    Description:

    2 centimeters



  33. Cross-bedding

    Snapshot Title: Cross-bedding
    Taken by: Callan Bentley

    Image: Anticline in Veach Gap
    Image Owner: Callan Bentley



    Description:

    Concave up (to the left)



  34. Hinge

    Snapshot Title: Hinge
    Taken by: Callan Bentley

    Image: Anticline in Veach Gap
    Image Owner: Callan Bentley



    Description:

    Strata dip to the left at left, and dip to the right at right.



  35. Scale card

    Snapshot Title: Scale card
    Taken by: Callan Bentley

    Image: Anticline in Veach Gap
    Image Owner: Callan Bentley



    Description:

    Courtesy of DGMR.



  36. 10 cm

    Snapshot Title: 10 cm
    Taken by: Callan Bentley

    Image: Martinsburg Formation, South Page Valley Road, Page County, Virginia
    Image Owner: Callan Bentley



    Description:

    Scale bar - the long edge of each black and white rectangle is 10 centimeters.



  37. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Martinsburg Formation, South Page Valley Road, Page County, Virginia
    Image Owner: Callan Bentley



    Description:

    inches on top, cm on bottom. Courtesy DGMR.



  38. Hackle fringe

    Snapshot Title: Hackle fringe
    Taken by: Callan Bentley

    Image: Martinsburg Formation, South Page Valley Road, Page County, Virginia
    Image Owner: Callan Bentley



    Description:

    Nice joint-edge filigree



  39. Massive bed

    Snapshot Title: Massive bed
    Taken by: Callan Bentley

    Image: Martinsburg Formation, South Page Valley Road, Page County, Virginia
    Image Owner: Callan Bentley



    Description:

    This was one big turbidite!



  40. Cleavage...

    Snapshot Title: Cleavage...
    Taken by: Callan Bentley

    Image: Martinsburg Formation, South Page Valley Road, Page County, Virginia
    Image Owner: Callan Bentley



    Description:

    is close to vertical, while bedding dips moderately off to the left.



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