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Callan Bentley's Snapshots

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  1. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Rippled Eldon Formation
    Image Owner: Callan Bentley



    Description:

    Canadian one-dollar coin (a loony).



  2. Bedding

    Snapshot Title: Bedding
    Taken by: Callan Bentley

    Image: Chancellor Formation slate, near Yoho National Park, British Columbia, Canada
    Image Owner: Callan Bentley



    Description:

    Alternating light and dark lines are the traces of primary sedimentary stratification (bedding).



  3. Cleavage

    Snapshot Title: Cleavage
    Taken by: Callan Bentley

    Image: Chancellor Formation slate, near Yoho National Park, British Columbia, Canada
    Image Owner: Callan Bentley



    Description:

    This rock is dominated by a pervasive slaty cleavage, and this cleavage provides the prominent planes (cross-cutting bedding) that are the main focus of the image.



  4. Bedding

    Snapshot Title: Bedding
    Taken by: Callan Bentley

    Image: Chancellor Formation slate, near Yoho National Park, British Columbia, Canada
    Image Owner: Callan Bentley



    Description:

    The colored layers in this rock are primary sedimentary stratification, or bedding.



  5. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Chancellor Formation slate, near Yoho National Park, British Columbia, Canada
    Image Owner: Callan Bentley



    Description:

    This rectangle is 1 cm long.



  6. Heifer

    Snapshot Title: Heifer
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    out standing in his field



  7. Hand-some chairs

    Snapshot Title: Hand-some chairs
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    Belonging to the Koffs



  8. Targets

    Snapshot Title: Targets
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    Practice for sharpshooting



  9. Veach Gap

    Snapshot Title: Veach Gap
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    Where Mill Creek cuts across Little Crease Mountain



  10. Secret Passage Ranch sign

    Snapshot Title: Secret Passage Ranch sign
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    Don Warlick's horse operation



  11. Great blue heron

    Snapshot Title: Great blue heron
    Taken by: Callan Bentley

    Image: Incipient fall foliage on Massanutten Mountain, Virginia
    Image Owner: Callan Bentley



    Description:

    on Passage Creek



  12. Quartz-cemented quartz clast

    Snapshot Title: Quartz-cemented quartz clast
    Taken by: Callan Bentley

    Image: Quartz-cemented breccia, Antietam Formation quartzite, western Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Angular shape



  13. Scale
  14. Ooids

    Snapshot Title: Ooids
    Taken by: Callan Bentley

    Image: Ooids and rip-up clasts
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Concentrically zoned open-ocean concretions.



  15. Piercing relationship?

    Snapshot Title: Piercing relationship?
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Did this pebble "pierce" into the underlying fine-to-medium sandstone strata?



  16. Luminous grain

    Snapshot Title: Luminous grain
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    What's this green glowing thing?



  17. Flame structure?

    Snapshot Title: Flame structure?
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Is this an upside-down flame structure? (in medium-grained sandstone)



  18. Weathered feldspar grain

    Snapshot Title: Weathered feldspar grain
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Perthitic wisps abound.



  19. Angular clast

    Snapshot Title: Angular clast
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    One of the characteristics of glaciogenic sediments is a mix of angular and rounded clasts. This one appears particularly acute. Does that speak to a glaciogenic origin?



  20. Granitoid pebble

    Snapshot Title: Granitoid pebble
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    This is clearly a lithic clast of igneous provenance. Where did this pebble originate? The Acadian highlands to the "east" - but what was above sea level and in "E World" at this time? Far eastern Vir...



  21. Truncation

    Snapshot Title: Truncation
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    This smaller sample appears to be right-side-up based on this stratigraphic truncation (dropstone of pebble size in fine-medium sandstone???)



  22. Pyrite

    Snapshot Title: Pyrite
    Taken by: Callan Bentley

    Image: Diamictite
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Detrital pyrite in the Devonian?



  23. Diamictite

    Snapshot Title: Diamictite
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Somewhere in here is a diamictite layer, which we have sampled and imaged here:
    www.gigapan.com/gigapans/162387



  24. Diamictite

    Snapshot Title: Diamictite
    Taken by: Callan Bentley

    Image: Devonian Hampshire, Latest Devonian Spechty Kopf, and lower Mississippian Rockwell formations roadcut on Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Somewhere in here is a distinctive diamictite unit. Here's a sample in macro GigaPan view: www.gigapan.com/gigapans/162387



  25. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Crazy Cat Breccia
    Image Owner: Robin Rohrback-Schiavone



    Description:

    1 cm wide.



  26. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions as cm-scale scarps on the surface of the weathered-out masses.



  27. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions as cm-scale scarps on the surface of the weathered-out masses.



  28. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions as cm-scale scarps on the surface of the weathered-out masses.



  29. Nice little fold

    Snapshot Title: Nice little fold
    Taken by: Callan Bentley

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



    Description:

    Peeking out from the apron of shale below the outcrop.



  30. Nice cross-sectioned folds

    Snapshot Title: Nice cross-sectioned folds
    Taken by: Callan Bentley

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



    Description:

    On the surface of a joint truncating a "ploudin"...



  31. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



  32. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



  33. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



  34. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



  35. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

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



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  36. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

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



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  37. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

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



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  38. Folded ploudin

    Snapshot Title: Folded ploudin
    Taken by: Callan Bentley

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



    Description:

    Sandstone "ploudins" (pillows/boudins) show intense folding, in some cases isoclinal, within a muddy matrix (now shale).



  39. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



  40. Little faults

    Snapshot Title: Little faults
    Taken by: Callan Bentley

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



    Description:

    Many of the ploudins show small-scale faulting, which is expressed in three dimensions on the surface of the weathered-out masses.



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