1. Skip to navigation
  2. Skip to content
  3. Skip to sidebar


Callan Bentley's Snapshots

Go to page:
  1. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Characteristic of this horizon



  2. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Characteristic of this horizon



  3. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Characteristic of this horizon



  4. Carbonate nodule

    Snapshot Title: Carbonate nodule
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    Characteristic of this horizon



  5. Rock hammer

    Snapshot Title: Rock hammer
    Taken by: Callan Bentley

    Image: Millboro Formation shale, Route 33 near Brandywine, West Virginia
    Image Owner: Callan Bentley



    Description:

    to serve as a sense of scale



  6. "Like a Mongolian latrine in winter"

    Snapshot Title: "Like a Mongolian latrine in winter"
    Taken by: Callan Bentley

    Image: aden spatter cone
    Image Owner: Joshua Villalobos



    Description:

    Mafic spatter pile



  7. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Lower Martinsburg Formation outcrop at Funk Road and Route 11, south of Strasburg, Virginia
    Image Owner: Callan Bentley



    Description:

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



  8. Vein

    Snapshot Title: Vein
    Taken by: Callan Bentley

    Image: Oolitic Limestone
    Image Owner: Robin Rohrback



    Description:

    of calcite



  9. Upside down shell

    Snapshot Title: Upside down shell
    Taken by: Callan Bentley

    Image: Oolitic Limestone
    Image Owner: Robin Rohrback



    Description:

    With mud and very few ooids filling it.



  10. 1 cm

    Snapshot Title: 1 cm
    Taken by: Callan Bentley

    Image: Oolitic Limestone
    Image Owner: Robin Rohrback



    Description:

    Scale



  11. Concentric ribs

    Snapshot Title: Concentric ribs
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    Another example of this aspect of joint anatomy - temporary arrest lines.



  12. Concentric ribs

    Snapshot Title: Concentric ribs
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    joint propagation signature



  13. Zoophycos

    Snapshot Title: Zoophycos
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    Great curvy example



  14. Body fossil

    Snapshot Title: Body fossil
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    Brach??



  15. Zoophycos

    Snapshot Title: Zoophycos
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    more feeding traces



  16. Zoophycos

    Snapshot Title: Zoophycos
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    more feeding traces



  17. Zoophycos

    Snapshot Title: Zoophycos
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    feeding trace fossils



  18. Rock hammer

    Snapshot Title: Rock hammer
    Taken by: Callan Bentley

    Image: Mahantango Formation, showing Zoophycos trace fossils
    Image Owner: Callan Bentley



    Description:

    for sense of scale



  19. This edge...

    Snapshot Title: This edge...
    Taken by: Callan Bentley

    Image: Weverton Formation
    Image Owner: Callan Bentley



    Description:

    ...is defined by foliation.



  20. This edge...

    Snapshot Title: This edge...
    Taken by: Callan Bentley

    Image: Weverton Formation
    Image Owner: Callan Bentley



    Description:

    ...is defined by bedding.



  21. Foliation

    Snapshot Title: Foliation
    Taken by: Callan Bentley

    Image: Weverton Formation
    Image Owner: Callan Bentley



    Description:

    Runs at ~45 degrees from lower left to upper right across this sample.



  22. Bedding

    Snapshot Title: Bedding
    Taken by: Callan Bentley

    Image: Weverton Formation
    Image Owner: Callan Bentley



    Description:

    Runs left-to-right across this sample.



  23. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Weverton Formation
    Image Owner: Callan Bentley



    Description:

    1 cm



  24. A closer look

    Snapshot Title: A closer look
    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:

    The coal here contains abundant pyrite, as seen in this sample: www.gigapan.com/gigapans/170818



  25. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Slabs of Brallier Formation shale, Paw Paw Tunnel
    Image Owner: Callan Bentley



    Description:

    You can examine a macro GigaPan of chlorite slickensides here:
    www.gigapan.com/gigapans/170768



  26. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Slickensides on slabs of Brallier Formation shale, Paw Paw Tunnel
    Image Owner: Callan Bentley



    Description:

    Examine a hand sample of chlorite slickensides with this macro GigaPan:
    www.gigapan.com/gigapans/170768



  27. Pothole

    Snapshot Title: Pothole
    Taken by: Callan Bentley

    Image: Belle Isle and James River Park, Richmond, Virginia
    Image Owner: Callan Bentley



    Description:

    one of many in this expansive pavement outcrop



  28. Hiking

    Snapshot Title: Hiking
    Taken by: Callan Bentley

    Image: Belle Isle and James River Park, Richmond, Virginia
    Image Owner: Callan Bentley



    Description:

    with a hiking stick



  29. Picking up trash

    Snapshot Title: Picking up trash
    Taken by: Callan Bentley

    Image: Belle Isle and James River Park, Richmond, Virginia
    Image Owner: Callan Bentley



    Description:

    Cleaning up the park!



  30. Cyclists

    Snapshot Title: Cyclists
    Taken by: Callan Bentley

    Image: Belle Isle and James River Park, Richmond, Virginia
    Image Owner: Callan Bentley



    Description:

    Can't imagine they rode across this!



  31. Geopetal

    Snapshot Title: Geopetal
    Taken by: Callan Bentley

    Image: Stromatolites in Helena (Siyeh) Formation Limstone from Alberta, Canada
    Image Owner: Robin Rohrback



    Description:

    Which way is up?



  32. Ostracode

    Snapshot Title: Ostracode
    Taken by: Callan Bentley

    Image: Tonoloway Ostracode Bed
    Image Owner: Callan Bentley



    Description:

    Unusually clean, but with transverse stress fractures.



  33. Ostracode

    Snapshot Title: Ostracode
    Taken by: Callan Bentley

    Image: Tonoloway Ostracode Bed
    Image Owner: Callan Bentley



    Description:

    Partial peel-back of the shell.



  34. Ostracode shell

    Snapshot Title: Ostracode shell
    Taken by: Callan Bentley

    Image: Tonoloway Ostracode Bed
    Image Owner: Callan Bentley



    Description:

    Ostracodes are arthropods with significant "beanlike" shells surrounding their leggy bodies.



  35. 1 cm

    Snapshot Title: 1 cm
    Taken by: Callan Bentley

    Image: Tonoloway Ostracode Bed
    Image Owner: Callan Bentley



    Description:

    Scale bar



  36. Geopetal

    Snapshot Title: Geopetal
    Taken by: Callan Bentley

    Image: Crossbedded Fine Sandstone
    Image Owner: Robin Rohrback



    Description:

    Which way is up?



  37. Geopetal

    Snapshot Title: Geopetal
    Taken by: Callan Bentley

    Image: Crossbedded Fine Sandstone
    Image Owner: Robin Rohrback



    Description:

    Which way is up?



  38. Vein cutting amydule

    Snapshot Title: Vein cutting amydule
    Taken by: Callan Bentley

    Image: Catoctin Formation metabasalt showing amygdules and asbestos veins
    Image Owner: Robin Rohrback



    Description:

    Amygdule (or at least the epidote component of the amygdule) is older in this case than the vein.



  39. Cross-cutting

    Snapshot Title: Cross-cutting
    Taken by: Callan Bentley

    Image: Catoctin Formation metabasalt showing amygdules and asbestos veins
    Image Owner: Robin Rohrback



    Description:

    An interesting blend of cross-cutting relationships here: The big amygdule has no vein cutting across it, but the little one to the right does. Hmmm.



  40. Grinding marks

    Snapshot Title: Grinding marks
    Taken by: Callan Bentley

    Image: Catoctin Formation metabasalt showing amygdules and asbestos veins
    Image Owner: Robin Rohrback



    Description:

    Sloppy work



Go to page: