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Callan Bentley's Snapshots

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  1. Amygdules

    Snapshot Title: Amygdules
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Catoctin formation meta-basalt, Blue Ridge province of Virginia.



  2. Shattercones

    Snapshot Title: Shattercones
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Beaverhead impact site, Montana



  3. Oysters encrusting giant Inoceramid clam

    Snapshot Title: Oysters encrusting giant Inoceramid clam
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Cretaceous chalk of Kansas



  4. Porphyritic rhyolite

    Snapshot Title: Porphyritic rhyolite
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Beartooth highway in Montana, west of Red Lodge.



  5. Chimney swifts

    Snapshot Title: Chimney swifts
    Taken by: Callan Bentley

    Image: Avila
    Image Owner: Daniel MrZeon



    Description:

    ...near a chimney!



  6. What time is it?

    Snapshot Title: What time is it?
    Taken by: Callan Bentley

    Image: Avila
    Image Owner: Daniel MrZeon



    Description:

    He's checking his watch!



  7. Geologist at work

    Snapshot Title: Geologist at work
    Taken by: Callan Bentley

    Image: Baie des Trepasses, Cornouaille, Brittany, France
    Image Owner: Manuel Sintubin



    Description:

    Checking out the rocks



  8. Massanutten Synclinorium

    Snapshot Title: Massanutten Synclinorium
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Southern end of the classic Valley & Ridge structure. plunges to the northeast.



  9. Breccia

    Snapshot Title: Breccia
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Marks the base of the Blue Ridge Thrust Fault



  10. National Mall issue of National Geographic

    Snapshot Title: National Mall issue of National Geographic
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    An interesting case study of a famous public space in my city.



  11. Anorthosite

    Snapshot Title: Anorthosite
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Adirondacks, New York.



  12. Conglomerate

    Snapshot Title: Conglomerate
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Cerro Toro Formation, a Cretaceous aged sedimentary rock unit from the Chilean part of Patagonia.



  13. Notebooks

    Snapshot Title: Notebooks
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    You can see the pixels on this label!



  14. Dimetrodon

    Snapshot Title: Dimetrodon
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    NOT a dinosaur!



  15. Calcite

    Snapshot Title: Calcite
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Part 2 of 2 of my "cleavage" demonstration for Physical Geology students.



  16. Amphibole

    Snapshot Title: Amphibole
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Part 1 of 2 of my "cleavage" demonstration for Physical Geology students.



  17. Hematite concretion

    Snapshot Title: Hematite concretion
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Hell Creek Formation, Glendive, Montana.



  18. Giraffe tooth

    Snapshot Title: Giraffe tooth
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    With copper wiring decoration, from an artistic friend who collected the tooth in Kenya.



  19. Rhea

    Snapshot Title: Rhea
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    As pictured on the cover of Darwin's Origin of Species.



  20. Talc/magnetite/malachite schist

    Snapshot Title: Talc/magnetite/malachite schist
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    A metamorphosed "black smoker" deposit! Mineral Hill, Maryland.



  21. Magnetite with magnet

    Snapshot Title: Magnetite with magnet
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Collected near Mineral Hill, Maryland.



  22. Straight nautiloid fossil

    Snapshot Title: Straight nautiloid fossil
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Needmore Formation of the Fort Valley in western Virginia. Devonian.



  23. Soapstone cobble

    Snapshot Title: Soapstone cobble
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from Soapstone Valley, Washington, DC



  24. Garnets

    Snapshot Title: Garnets
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    in the Setters Schist of Maryland.



  25. Rhythmic bedding

    Snapshot Title: Rhythmic bedding
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    in the Hell Creek Formation, just below the K/Pg boundary, near Glendive, Montana.



  26. MacCready Formation

    Snapshot Title: MacCready Formation
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Rock gypsum -- Mississippian evaporites from SW Virginia.



  27. Fern fossil

    Snapshot Title: Fern fossil
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Llewellyn Formation, St. Clair, Pennsylvania.



  28. Plant fossils in fine grained sandstone

    Snapshot Title: Plant fossils in fine grained sandstone
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    From the side of the Al-Can highway, somewhere in northern British Columbia.



  29. Feldspar megacryst

    Snapshot Title: Feldspar megacryst
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Cathedral Peak granodiorite pluton in the high Sierra, California.



  30. Arkose

    Snapshot Title: Arkose
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Fountain Formation (Flatirons, west of Boulder, Colorado)



  31. Ammonitic sutures

    Snapshot Title: Ammonitic sutures
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    On an ammonite fossil



  32. Field notebooks

    Snapshot Title: Field notebooks
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    "Rite in the Rain" brand



  33. Finger monster

    Snapshot Title: Finger monster
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Rowr.



  34. Where it all began...

    Snapshot Title: Where it all began...
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    from the Museum of Unnatural History in Columbia Heights, DC.



  35. Doorstop

    Snapshot Title: Doorstop
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Well used, as you can see from the pattern of physical weathering.



  36. Conglomerate

    Snapshot Title: Conglomerate
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Anchor Bay, California.



  37. Owner's tag

    Snapshot Title: Owner's tag
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Fine fellow tag, courtesy of Gigapan staff and the Fine Outreach for Science.



  38. Geologic map of Scotland

    Snapshot Title: Geologic map of Scotland
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    (detail)



  39. Old Nalgenes

    Snapshot Title: Old Nalgenes
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Sticker adorned, but not BPA-free. Consigned to decorative duty for the rest of their lives.



  40. It's better

    Snapshot Title: It's better
    Taken by: Callan Bentley

    Image: The shelf on the south wall of my office
    Image Owner: Callan Bentley



    Description:

    Pure coffee



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