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Callan Bentley's Snapshots

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  1. Shwagerina

    Snapshot Title: Shwagerina
    Taken by: Callan Bentley

    Image: Fusulinid rich sediment
    Image Owner: Callan Bentley



    Description:

    Classic, huge Permian fusulinid foram.



  2. Randolph Macon

    Snapshot Title: Randolph Macon
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    Military academy in Front Royal.



  3. 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.



  4. 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.



  5. Rock climber

    Snapshot Title: Rock climber
    Taken by: Callan Bentley

    Image: Buzzard Rocks
    Image Owner: Callan Bentley



    Description:

    Headed up



  6. 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.



  7. 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°



  8. 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°



  9. 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°



  10. 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.



  11. Crinoid stem

    Snapshot Title: Crinoid stem
    Taken by: Callan Bentley

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



    Description:

    !



  12. 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).



  13. 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?



  14. 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!



  15. Matterhorn

    Snapshot Title: Matterhorn
    Taken by: Callan Bentley

    Image: Zermatt Marathon
    Image Owner: M A



    Description:

    Awesome!



  16. 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.



  17. Crevasses
  18. 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.



  19. U-shaped valley

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

    Image: Beartooth Highway
    Image Owner: Callan Bentley



    Description:

    Glacial geomorphology



  20. 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?



  21. 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.



  22. 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



  23. 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.



  24. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

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



    Description:

    Highlighted with hematite



  25. 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



  26. 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.



  27. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

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



    Description:

    Highlighted by hematite



  28. 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.



  29. 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).



  30. 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.



  31. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

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



    Description:

    Highlighted by hematite



  32. 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?



  33. 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.



  34. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

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



    Description:

    .



  35. Cocoon?

    Snapshot Title: Cocoon?
    Taken by: Callan Bentley

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



    Description:

    :)



  36. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

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



    Description:

    Highlighted by hematite



  37. Trace fossil

    Snapshot Title: Trace fossil
    Taken by: Callan Bentley

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



    Description:

    Highlighted with hematite



  38. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

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



    Description:

    Diagenetic feature



  39. 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.



  40. Pyritized plant cells

    Snapshot Title: Pyritized plant cells
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback



    Description:

    Lines of boxy plant (?) cells.



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