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Callan Bentley's Snapshots

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  1. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Faulted- Tonoloway
    Image Owner: Alan Pitts



    Description:

    Details here:
    gigapan.com/gigapans/174628



  2. Slogan

    Snapshot Title: Slogan
    Taken by: Callan Bentley

    Image: Syncline Fold, Corridor H
    Image Owner: Marissa Dudek



    Description:

    Resolution's good enough to read off the fine print on the license plate.



  3. Fault

    Snapshot Title: Fault
    Taken by: Callan Bentley

    Image: Syncline Fold, Corridor H
    Image Owner: Marissa Dudek



    Description:

    A big difference in bedding orientation in upper left of snapshot relative to lower right, and an oxidized zone of rubble in between. Fault!



  4. Beautiful brach

    Snapshot Title: Beautiful brach
    Taken by: Callan Bentley

    Image: Fossils in Reynolds Limestone, Mauch Chunk Formation
    Image Owner: Marissa Dudek



    Description:

    Exterior



  5. Eye

    Snapshot Title: Eye
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    This one has an iris!



  6. Hmmm

    Snapshot Title: Hmmm
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    What's up with these half-spherical concavities?



  7. Microcave

    Snapshot Title: Microcave
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Looks like a good site for a bird nest?



  8. Differential dissolution

    Snapshot Title: Differential dissolution
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Some of these strata are more soluble than others.



  9. Clover

    Snapshot Title: Clover
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    in bloom



  10. Flowers

    Snapshot Title: Flowers
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    A small bouquet



  11. Extensional veins

    Snapshot Title: Extensional veins
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Filled w/ pure white calcite



  12. Intersecting joint sets

    Snapshot Title: Intersecting joint sets
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    A conjugate set?



  13. Dissolution

    Snapshot Title: Dissolution
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    on joint surfaces. Also, oxidation.



  14. Art

    Snapshot Title: Art
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    My two-year-old's depiction of Darth Vader. 2015. Medium: gravel and carpaint.



  15. PATC

    Snapshot Title: PATC
    Taken by: Callan Bentley

    Image: Helderberg Limestone, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Potomac Appalachian Trail Club sticker on the GigaPanMobile.



  16. Breakage

    Snapshot Title: Breakage
    Taken by: Callan Bentley

    Image: Millboro Climbing Ripples
    Image Owner: Robin Rohrback-Schiavone



    Description:

    This sample readily parts along bedding planes, but will also break across bedding planes if it needs to.



  17. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Millboro Climbing Ripples
    Image Owner: Robin Rohrback-Schiavone



    Description:

    1 cm wide



  18. Change in thickness

    Snapshot Title: Change in thickness
    Taken by: Callan Bentley

    Image: Millboro Climbing Ripples
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Watch how the light colored lamination goes from relatively thick (on inclined surface - the slipface of the Devonian ripple) to thin on the downstream gentler slope.



  19. PATC logo

    Snapshot Title: PATC logo
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation, showing Reynolds Limestone Member
    Image Owner: Callan Bentley



    Description:

    Potomac Appalachian Trail Club sticker in the window of the GigaPanMobile.



  20. Rockfall

    Snapshot Title: Rockfall
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation, showing Reynolds Limestone Member
    Image Owner: Callan Bentley



    Description:

    The biggest pieces go the furthest...



  21. Jeff & Bridget

    Snapshot Title: Jeff & Bridget
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation, showing Reynolds Limestone Member
    Image Owner: Callan Bentley



    Description:

    GigaPanners in training examine the base of the Reynolds Limestone.



  22. Root traces

    Snapshot Title: Root traces
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Reduced chemistry cross-cutting surrounding oxidized sediment.



  23. Concentric ribs

    Snapshot Title: Concentric ribs
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Conchoidal fracture.



  24. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Georgetown Intrusive Suite, Rock Creek Park, Washington, DC
    Image Owner: Callan Bentley



    Description:

    1 cm long



  25. Garnet

    Snapshot Title: Garnet
    Taken by: Callan Bentley

    Image: Garnetiferous metagraywacke, Rock Creek Shear Zone, Washington, DC
    Image Owner: Callan Bentley



    Description:

    porphyroblast



  26. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Garnetiferous metagraywacke, Rock Creek Shear Zone, Washington, DC
    Image Owner: Callan Bentley



    Description:

    3 cm



  27. Stretched  clast

    Snapshot Title: Stretched clast
    Taken by: Callan Bentley

    Image: Stretched clasts in Laurel Formtion metagraywacke, Rock Creek Shear Zone, Washington, DC
    Image Owner: Callan Bentley



    Description:

    Axial ratio of 4 to 1?



  28. Stretched quartz clast

    Snapshot Title: Stretched quartz clast
    Taken by: Callan Bentley

    Image: Stretched clasts in Laurel Formtion metagraywacke, Rock Creek Shear Zone, Washington, DC
    Image Owner: Callan Bentley



    Description:

    One of several



  29. Scale
  30. What's this?

    Snapshot Title: What's this?
    Taken by: Callan Bentley

    Image: Klamath Basin
    Image Owner: Aaron M Barth



    Description:

    A box? A cinder block?



  31. Offset

    Snapshot Title: Offset
    Taken by: Callan Bentley

    Image: Klamath Faults 2
    Image Owner: Aaron M Barth



    Description:

    A thing of beauty!



  32. Redbud

    Snapshot Title: Redbud
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Cercus canadensis in spring bloom.



  33. Conjugate pair

    Snapshot Title: Conjugate pair
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    of joints, each oriented ~30 degrees to a presumed sigma-1 that was bedding-perpendicular.



  34. Joint set

    Snapshot Title: Joint set
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Prominent subvertical (bedding-perpendicular) joint set.



  35. Woodpecker trace

    Snapshot Title: Woodpecker trace
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    part II



  36. Woodpecker damage

    Snapshot Title: Woodpecker damage
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    to the tree



  37. Pinecones

    Snapshot Title: Pinecones
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    sans seeds



  38. Another example

    Snapshot Title: Another example
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    of convolute bedding in the sandstone.



  39. Convolute bedding

    Snapshot Title: Convolute bedding
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Little sandy diapir - but restricted to the sand unit; not the muddy shale below: So soft sediment deformation (pre-lithification) due to density inversion immediately after deposition.



  40. Convolute bedding

    Snapshot Title: Convolute bedding
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    within a sandy layer



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