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Callan Bentley's Snapshots

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  1. Sheared primary sedimentary structures

    Snapshot Title: Sheared primary sedimentary structures
    Taken by: Callan Bentley

    Image: Weverton Formation exposed at Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Possible scours + cross-bedding, sheared (top to the left; east over west) to oversteepen the right side.



  2. Quartz vein

    Snapshot Title: Quartz vein
    Taken by: Callan Bentley

    Image: Weverton Formation exposed at Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Offsetting bedding (black lines are traces of bedding), apparently with a east-over-west kinematic sense.



  3. Pencil for scale

    Snapshot Title: Pencil for scale
    Taken by: Callan Bentley

    Image: Weverton Formation exposed at Thoroughfare Gap, Virginia
    Image Owner: Callan Bentley



    Description:

    Each black bar on the pencil is 1 cm.



  4. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

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



    Description:

    At this wall: www.gigapan.com/gigapans/181674



  5. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Mauch Chunk Formation
    Image Owner: Joshua Benton



    Description:

    At this wall: www.gigapan.com/gigapans/181674



  6. Convolute contact

    Snapshot Title: Convolute contact
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    between shalier layer and overlying massive, fossiliferous layer.



  7. Articulate brachiopod - both valves

    Snapshot Title: Articulate brachiopod - both valves
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Still articulated! (buried alive)



  8. Cavity fill

    Snapshot Title: Cavity fill
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    A nice geopetal indicator: the lower part of the shell is full of sediment; the upper (formerly empty) part is filled with sparry calcite.



  9. Cavity fill

    Snapshot Title: Cavity fill
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    A nice geopetal indicator: the lower part of the shell is full of sediment; the upper (formerly empty) part is filled with sparry calcite.



  10. Gastropod

    Snapshot Title: Gastropod
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    (fossil)



  11. Gastropod

    Snapshot Title: Gastropod
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    (fossil)



  12. Gastropod

    Snapshot Title: Gastropod
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    (fossil)



  13. Strophomenid brachiopod

    Snapshot Title: Strophomenid brachiopod
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    (fossil)



  14. Strophomenid bachiopod

    Snapshot Title: Strophomenid bachiopod
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    (fossil)



  15. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Each of the black bars on the side of this pencil is 1 centimeter in length.



  16. A closer look
  17. A closer look
  18. Spechty Kopf diamictite

    Snapshot Title: Spechty Kopf diamictite
    Taken by: Callan Bentley

    Image: Latest Devonian Spechty Kopf formation roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    The next unit down in the sequence is this diamictite: www.gigapan.com/gigapans/181670



  19. Clast w/ apparent faceted shape

    Snapshot Title: Clast w/ apparent faceted shape
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  20. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  21. Big quartz pebble

    Snapshot Title: Big quartz pebble
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  22. Granitic clast

    Snapshot Title: Granitic clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    w/ apparent faceted shape.



  23. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  24. Faceted clast

    Snapshot Title: Faceted clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  25. Outsized, blurry clast

    Snapshot Title: Outsized, blurry clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  26. WHY are all the good ones out of focus?

    Snapshot Title: WHY are all the good ones out of focus?
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Aaargh.



  27. Outsized clast w/ faceted shape

    Snapshot Title: Outsized clast w/ faceted shape
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  28. Outsized clast.

    Snapshot Title: Outsized clast.
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  29. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  30. Another blurry clast

    Snapshot Title: Another blurry clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    :(



  31. Scratched clast

    Snapshot Title: Scratched clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Linear scratches at several orientations are visible.



  32. Two clasts

    Snapshot Title: Two clasts
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    set in the muddy matrix



  33. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Possible dropstone.



  34. Nice example of a faceted clast

    Snapshot Title: Nice example of a faceted clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    Too bad it's so goddamn blurry.



  35. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Spechty Kopf Diamictite, exposed on Corridor H, West Virginia (second berm)
    Image Owner: Callan Bentley



    Description:

    (possible dropstone)



  36. Articulate brachiopod

    Snapshot Title: Articulate brachiopod
    Taken by: Callan Bentley

    Image: Greenops boothi (?) trilobite pygidium
    Image Owner: Callan Bentley



    Description:

    Ribs seems to show small crenulations.



  37. Trilobite pygidium

    Snapshot Title: Trilobite pygidium
    Taken by: Callan Bentley

    Image: Greenops boothi (?) trilobite pygidium
    Image Owner: Callan Bentley



    Description:

    Distinctive flanges coming off the sides.



  38. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Greenops boothi (?) trilobite pygidium
    Image Owner: Callan Bentley



    Description:

    1 cm wide



  39. Bird

    Snapshot Title: Bird
    Taken by: Callan Bentley

    Image: Petroglyph Panel along Little Colorado River, Arizona
    Image Owner: rmark



    Description:

    Soaring jauntily along



  40. Chesapecten nefrens

    Snapshot Title: Chesapecten nefrens
    Taken by: Callan Bentley

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



    Description:

    (I think)



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