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Callan Bentley's Snapshots

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  1. Worm burrow

    Snapshot Title: Worm burrow
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#6 of 8)
    Image Owner: Callan Bentley



    Description:

    Full of lighter colored sediment



  2. Crab burrow

    Snapshot Title: Crab burrow
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#6 of 8)
    Image Owner: Callan Bentley



    Description:

    Full of shelly debris



  3. Outcrop face

    Snapshot Title: Outcrop face
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#6 of 8)
    Image Owner: Callan Bentley



    Description:

    The outcrop face here is oriented 338°, 80° (right hand rule).



  4. Joint

    Snapshot Title: Joint
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    The rusty line (dipping down to the right) is the trace of a fracture surface along which oxidizing fluids have flowed.



  5. Barnacle

    Snapshot Title: Barnacle
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    This barnacle is native to a higher (stratigraphic) bed, and likely tumbled down the cliff face to end up on the beach here. See the larger context here:
    gigapan.com/gigapans/124800



  6. Zoom in for closer detail

    Snapshot Title: Zoom in for closer detail
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124864



  7. Zoom in for more detail

    Snapshot Title: Zoom in for more detail
    Taken by: Callan Bentley

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



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124864



  8. Nested tupperware

    Snapshot Title: Nested tupperware
    Taken by: Callan Bentley

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



    Description:

    How does a pile-up like this happen?



  9. Ecphora?

    Snapshot Title: Ecphora?
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    Is this an Ecphora shell in cross-section (perpendicular to the spiralling axis)?



  10. Bored scallop

    Snapshot Title: Bored scallop
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    I think these holes are a trace of another organism parasitising this scallop.



  11. Worm burrow

    Snapshot Title: Worm burrow
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    Note the light gray color



  12. 1 cm

    Snapshot Title: 1 cm
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#6 of 8)
    Image Owner: Callan Bentley



    Description:

    The black bars on the side of this pencil are each 1 centimeter in length.



  13. 1 cm

    Snapshot Title: 1 cm
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#7 of 8)
    Image Owner: Callan Bentley



    Description:

    The black bars on the side of this pencil are each 1 centimeter in length.



  14. Zoom in for more detail

    Snapshot Title: Zoom in for more detail
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124829



  15. Zoom in for more detail

    Snapshot Title: Zoom in for more detail
    Taken by: Callan Bentley

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



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124829



  16. Messy outcrop

    Snapshot Title: Messy outcrop
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    If you head down the beach another 15 meters or so, you'll find this outcrop:
    gigapan.com/gigapans/124841It's not as cleaned off as the face you see in the majority of THIS image, though.



  17. Driftwood

    Snapshot Title: Driftwood
    Taken by: Callan Bentley

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



    Description:

    Where did it originate?



  18. Creeping green

    Snapshot Title: Creeping green
    Taken by: Callan Bentley

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



    Description:

    Moss



  19. Buried alive

    Snapshot Title: Buried alive
    Taken by: Callan Bentley

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



    Description:

    The articulation of these valves suggests that this clam was buried whole, and didn't have a chance to rot or have its valves (shells) disarticulated before burial. Maybe it was even buried alive!



  20. Outcrop face

    Snapshot Title: Outcrop face
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    Orientation of the exposure face is 334°, 58° (right hand rule).



  21. Worm burrow

    Snapshot Title: Worm burrow
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    Filled with lighter-colored sediment. Oblique cross-section.



  22. Joints

    Snapshot Title: Joints
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    Two fractures are evident here, shallowly dipping to the right (north). Oxidizing fluids evidently flowed along these surfaces, staining the gray host rock to a tan color.



  23. Whale rib

    Snapshot Title: Whale rib
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    Exposed in cross-section, orthogonal to the cliff face.



  24. Tiger beetle burrow

    Snapshot Title: Tiger beetle burrow
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    One modern biology aspect to this site is the numerous tiger beetle burrows in the semi-lithified cliff face.



  25. Charcoal

    Snapshot Title: Charcoal
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    This is a very big chunk of Miocene charcoal... clearly the shore (and land, where fires could burn) was not too far away from this marine depositional location.



  26. Muck

    Snapshot Title: Muck
    Taken by: Callan Bentley

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



    Description:

    Dirt from the overlying slopes has washed down over the outcrop surface.



  27. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    Each of these black and white rectangles is 10 centimeters long.



  28. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

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



    Description:

    Each of these black and white rectangles is 10 centimeters tall.



  29. Pencil

    Snapshot Title: Pencil
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
    Image Owner: Callan Bentley



    Description:

    To serve as a sense of scale, we have included this yellow mechanical pencil with centimeter-scale markings along its side.



  30. Scale pencil

    Snapshot Title: Scale pencil
    Taken by: Callan Bentley

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



    Description:

    This mechanical pencil has centimeter lengths marked along its side.



  31. Zoom in for more details

    Snapshot Title: Zoom in for more details
    Taken by: Callan Bentley

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



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124828



  32. Zoom in for more details

    Snapshot Title: Zoom in for more details
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    This outcrop surface was shot at closer range, here:
    gigapan.com/gigapans/124828



  33. 10 cm

    Snapshot Title: 10 cm
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#4 of 8)
    Image Owner: Callan Bentley



    Description:

    This scale bar is marked in 10 centimeter segments.



  34. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#4 of 8)
    Image Owner: Callan Bentley



    Description:

    1 centimeter, on the side of a mechanical pencil.



  35. Outcrop face

    Snapshot Title: Outcrop face
    Taken by: Callan Bentley

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



    Description:

    The outcrop face here is oriented 338°, 80° (right-hand rule).



  36. Orientation

    Snapshot Title: Orientation
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    The outcrop face here is oriented 334°, 58° (right-hand rule).



  37. Orientation

    Snapshot Title: Orientation
    Taken by: Callan Bentley

    Image: Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
    Image Owner: Callan Bentley



    Description:

    The outcrop face here is oriented 338°, 80° (right hand rule).



  38. Outcrop face

    Snapshot Title: Outcrop face
    Taken by: Callan Bentley

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



    Description:

    Orientation of the exposure face is 334°, 58° (right hand rule).



  39. Charcoal

    Snapshot Title: Charcoal
    Taken by: Callan Bentley

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



    Description:

    Land can't have been too far away...



  40. Worm burrow

    Snapshot Title: Worm burrow
    Taken by: Callan Bentley

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



    Description:

    in the shelly bed.



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