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Callan Bentley's Snapshots

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  1. Randolph Macon

    Snapshot Title: Randolph Macon
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    Military academy in Front Royal.



  2. Blue Ridge

    Snapshot Title: Blue Ridge
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    The Blue Ridge lies to the east/southeast.



  3. Steeply dipping

    Snapshot Title: Steeply dipping
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    These slabs of Silurian quartz arenite dip steeply NW toward the axis of the Massanutten Synclinorium.



  4. Rock climber

    Snapshot Title: Rock climber
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    Headed up



  5. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each horizontal white/black bar is 10 cm long.



  6. Bedding  (shallow apparent dip)

    Snapshot Title: Bedding (shallow apparent dip)
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    090° / 38°



  7. Foliation (steep planar feature here)

    Snapshot Title: Foliation (steep planar feature here)
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    054° / 90°



  8. Prominent joint set

    Snapshot Title: Prominent joint set
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    (widely spaced, divides outcrop into "thirds," left to right): 142° / 84°



  9. Pencil for scale

    Snapshot Title: Pencil for scale
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black bar is 1 cm long.



  10. Crinoid stem

    Snapshot Title: Crinoid stem
    Taken by: Callan Bentley

    Image: Helderberg limestones, Fort Valley Road, Virginia
    Image Owner: Callan Bentley



    Description:

    !



  11. Crazy Cat Landslide source area

    Snapshot Title: Crazy Cat Landslide source area
    Taken by: Callan Bentley

    Image: Southern Franklin Mountains
    Image Owner: Joshua Villalobos



    Description:

    Where the prominent ridge former (left of this snapshot) disappears, that's the source area for the Crazy Cat Landslide (on the far --western-- side of the range).



  12. Is this a granite sill...

    Snapshot Title: Is this a granite sill...
    Taken by: Callan Bentley

    Image: Southern Franklin Mountains
    Image Owner: Joshua Villalobos



    Description:

    ...jumping from above a marker bed to below it?



  13. Geopetal structure

    Snapshot Title: Geopetal structure
    Taken by: Callan Bentley

    Image: Storm deposit in Reedsville Formation
    Image Owner: Callan Bentley



    Description:

    Shell, with graded bed of mud at the bottom, and sparry calcite filling the void space at top!



  14. Matterhorn

    Snapshot Title: Matterhorn
    Taken by: Callan Bentley

    Image: Zermatt Marathon
    Image Owner: M A



    Description:

    Awesome!



  15. Name this ridge

    Snapshot Title: Name this ridge
    Taken by: Callan Bentley

    Image: Darton Peak, WY
    Image Owner: Callan Bentley



    Description:

    A short section of arête.



  16. Crevasses
  17. Lateral moraine

    Snapshot Title: Lateral moraine
    Taken by: Callan Bentley

    Image: Athabasca Glacier with prominent lateral moraines
    Image Owner: Callan Bentley



    Description:

    Showing where the left side of the glacier used to be.



  18. U-shaped valley

    Snapshot Title: U-shaped valley
    Taken by: Callan Bentley

    Image: Beartooth Highway
    Image Owner: Callan Bentley



    Description:

    Glacial geomorphology



  19. Fracture network

    Snapshot Title: Fracture network
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted with oxidation (light colors). Which fracture set came first? (left-dipping or right-dipping) Why?



  20. Empty socketq

    Snapshot Title: Empty socketq
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Where a carbonate nodule used to be.



  21. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    NOT highlighted with hematite... harder to spot



  22. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Burrow highlighted with hematite.



  23. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted with hematite



  24. Seed pod

    Snapshot Title: Seed pod
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Little wheat-like seed head



  25. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    With radial fracture set.



  26. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted by hematite



  27. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Weathering out relative to the fissile shale around it.



  28. Hackle fringes

    Snapshot Title: Hackle fringes
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Ruffled edge of a series of joints (propagating from top to bottom).



  29. Plumose structure

    Snapshot Title: Plumose structure
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Emanating from the hollow where a carbonate nodule used to be - a stress locus.



  30. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted by hematite



  31. Carbonate nodule cluster

    Snapshot Title: Carbonate nodule cluster
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Or maybe it's just one big crescent shaped one?



  32. Trace fossils

    Snapshot Title: Trace fossils
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Viewed end-on - circular cross-section. Highlighted with hematite.



  33. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    .



  34. Cocoon?

    Snapshot Title: Cocoon?
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    :)



  35. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted by hematite



  36. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Highlighted with hematite



  37. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    Diagenetic feature



  38. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing carbonate nodules
    Image Owner: Callan Bentley



    Description:

    This black bar is 10 cm long, left to right.



  39. Pyritized plant cells

    Snapshot Title: Pyritized plant cells
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback



    Description:

    Lines of boxy plant (?) cells.



  40. Yeast cell

    Snapshot Title: Yeast cell
    Taken by: Callan Bentley

    Image: Migmatite on the Billy Goat Trail
    Image Owner: Robin Rohrback



    Description:

    Saccharomyces cerevisiae



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