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Callan Bentley's Snapshots

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  1. Moon

    Snapshot Title: Moon
    Taken by: Callan Bentley

    Image: Torres Del Paine with moonrise
    Image Owner: Suk Choo Kim



    Description:

    Or "Luna," if you're actually in Patagonia.



  2. Stoping

    Snapshot Title: Stoping
    Taken by: Callan Bentley

    Image: Torres Del Paine with moonrise
    Image Owner: Suk Choo Kim



    Description:

    When chunks of "host" rock break off from the roof (or walls) of a magma chamber, and become independent liberated bits called "xenoliths."



  3. Olivine phenocrysts

    Snapshot Title: Olivine phenocrysts
    Taken by: Callan Bentley

    Image: Porphyritic Vesicular Basalt from Ka Lae, Hawaii
    Image Owner: Callan Bentley



    Description:

    and vesicles



  4. Axial planar cleavage

    Snapshot Title: Axial planar cleavage
    Taken by: Callan Bentley

    Image: South Fort Valley Antiform
    Image Owner: Alan Pitts



    Description:

    Lovely structure within a structure.



  5. Conchoidal fracture

    Snapshot Title: Conchoidal fracture
    Taken by: Callan Bentley

    Image: Olivine-Rich Sand from Ka Lae, Hawai'i
    Image Owner: Robin Rohrback-Schiavone



    Description:

    on the left side of this olivine grain.



  6. 10 cm

    Snapshot Title: 10 cm
    Taken by: Callan Bentley

    Image: Veach Gap Anticline 2
    Image Owner: Alan Pitts



    Description:

    = red line



  7. 10cm

    Snapshot Title: 10cm
    Taken by: Callan Bentley

    Image: Veach Gap Anticline 1
    Image Owner: Alan Pitts



    Description:

    = red stripe



  8. Mr. E. coli

    Snapshot Title: Mr. E. coli
    Taken by: Callan Bentley

    Image: Veach Gap Anticline 1
    Image Owner: Alan Pitts



    Description:

    in his little anticline house.



  9. Dropstone

    Snapshot Title: Dropstone
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    The only one in this layer...



  10. Pyrite

    Snapshot Title: Pyrite
    Taken by: Callan Bentley

    Image: Sand from Paphos, Cyprus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    cubic grain



  11. Cleavage

    Snapshot Title: Cleavage
    Taken by: Callan Bentley

    Image: Sand from Halls Lake, Ontario, Canada
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Nice



  12. Lithic clast?

    Snapshot Title: Lithic clast?
    Taken by: Callan Bentley

    Image: Ignimbrite thin section
    Image Owner: Ian Butler



    Description:

    Seems like this could be a poly-crystal aggregate that preceded eruption?



  13. Interesting contrast / comparison

    Snapshot Title: Interesting contrast / comparison
    Taken by: Callan Bentley

    Image: WV Rt 55 Whipcove Anticline
    Image Owner: Alan Pitts



    Description:

    between weathering 'style' of the outcrop and the clast size of the sediment that is building up in the small "mini-talus" slopes at the base of the cliff.



  14. More snapshots

    Snapshot Title: More snapshots
    Taken by: Callan Bentley

    Image: WV Rt 55 Whipcove Anticline
    Image Owner: Alan Pitts



    Description:

    about hinges and wrinkles



  15. Synform hinge

    Snapshot Title: Synform hinge
    Taken by: Callan Bentley

    Image: WV Rt 55 Whipcove Anticline
    Image Owner: Alan Pitts



    Description:

    appears to be here. A good place to measure the limbs' strike and dip and then use a stereonet to determine the trend and plunge of the hinge line.



  16. Interesting

    Snapshot Title: Interesting
    Taken by: Callan Bentley

    Image: WV Rt 55 Whipcove Anticline
    Image Owner: Alan Pitts



    Description:

    that the same strata are yellow at the top and gray at the bottom.



  17. One way

    Snapshot Title: One way
    Taken by: Callan Bentley

    Image: WV new Route 55 Folded Tonoloway
    Image Owner: Alan Pitts



    Description:

    GigaPan is the only way.



  18. Rhythmic bedding

    Snapshot Title: Rhythmic bedding
    Taken by: Callan Bentley

    Image: WV new Route 55 Folded Tonoloway
    Image Owner: Alan Pitts



    Description:

    Gray, yellow, brown - seems to be a repeating pattern. What does this mean?



  19. Steeply dipping

    Snapshot Title: Steeply dipping
    Taken by: Callan Bentley

    Image: WV new Route 55 Folded Tonoloway
    Image Owner: Alan Pitts



    Description:

    east-facing joint set



  20. Great looking sand

    Snapshot Title: Great looking sand
    Taken by: Callan Bentley

    Image: Calvert Cliffs Sand
    Image Owner: Robin Rohrback-Schiavone



    Description:

    .



  21. Multicolored

    Snapshot Title: Multicolored
    Taken by: Callan Bentley

    Image: Sand from LaParee Beach, Bretignolles-sur-Mer, France
    Image Owner: Robin Rohrback-Schiavone



    Description:

    well rounded, too!



  22. Focus contrast

    Snapshot Title: Focus contrast
    Taken by: Callan Bentley

    Image: Setters Schist
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Some areas are in focus, others aren't, like the big porphyroblast of garnet in the lower right of this snapshot.



  23. Some doubling up

    Snapshot Title: Some doubling up
    Taken by: Callan Bentley

    Image: Setters Schist
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Image stacking slightly misaligned. Arrrgh.



  24. Mud laminations

    Snapshot Title: Mud laminations
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Very fine-grains; very calm deposition (lake bottom?)



  25. Arkosic sand

    Snapshot Title: Arkosic sand
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    .



  26. Climbing ripples?

    Snapshot Title: Climbing ripples?
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Is that what's going on here?



  27. Flame structure

    Snapshot Title: Flame structure
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    soft sediment deformation - graviational instability generated by the sudden deposition of a bolus of sand atop layers of squishy mud.



  28. Dropstones

    Snapshot Title: Dropstones
    Taken by: Callan Bentley

    Image: Konnarock Formation as Cautionary Tale 2
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Iceberg-rafted dropstones.



  29. Ball & pillow

    Snapshot Title: Ball & pillow
    Taken by: Callan Bentley

    Image: Monocline in Hampshire Formation
    Image Owner: Alan Pitts



    Description:

    Looks like some soft sediment deformation to me.



  30. Compare & contrast

    Snapshot Title: Compare & contrast
    Taken by: Callan Bentley

    Image: Konnarock Formation: a GIGAmacro Cautionary Tale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Properly stacked (left) and improperly (right)



  31. And, yet,

    Snapshot Title: And, yet,
    Taken by: Callan Bentley

    Image: Konnarock Formation: a GIGAmacro Cautionary Tale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    ...some areas look just fine upon zooming in. What gives?



  32. Seeing double

    Snapshot Title: Seeing double
    Taken by: Callan Bentley

    Image: Konnarock Formation: a GIGAmacro Cautionary Tale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Focal stacking chooses two different "base" images?



  33. The dreaded 'starburst' effect

    Snapshot Title: The dreaded 'starburst' effect
    Taken by: Callan Bentley

    Image: Konnarock Formation: a GIGAmacro Cautionary Tale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Why, oh why?



  34. Focal stacking 'edge' artifact

    Snapshot Title: Focal stacking 'edge' artifact
    Taken by: Callan Bentley

    Image: Konnarock Formation: a GIGAmacro Cautionary Tale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Aaaarrrrgggghhh.



  35. Cross-beds

    Snapshot Title: Cross-beds
    Taken by: Callan Bentley

    Image: Ferron Sandstone
    Image Owner: Mark Barton



    Description:

    Sweet - "textbook" example.



  36. Weird lumps

    Snapshot Title: Weird lumps
    Taken by: Callan Bentley

    Image: Flute Casts in Brallier Formation Shale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Not sure how to interpret this blob, the biggest protrusion from the bottom of the bed. (Burrow infill?)



  37. Interesting way these...

    Snapshot Title: Interesting way these...
    Taken by: Callan Bentley

    Image: Flute Casts in Brallier Formation Shale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    ...joints (veins) tip out with respect to one another.



  38. Tool marks

    Snapshot Title: Tool marks
    Taken by: Callan Bentley

    Image: Flute Casts in Brallier Formation Shale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    These straight grooves (angled from lower left towards upper right) may be tool marks (gouges in the sediment when a stick or shell or something -- a "tool" -- is dragged in a current over the sedimen...



  39. Interesting fracture/vein relationship

    Snapshot Title: Interesting fracture/vein relationship
    Taken by: Callan Bentley

    Image: Flute Casts in Brallier Formation Shale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    They're the same, but then the split, and re-merge?



  40. More sweet flutes

    Snapshot Title: More sweet flutes
    Taken by: Callan Bentley

    Image: Flute Casts in Brallier Formation Shale
    Image Owner: Robin Rohrback-Schiavone



    Description:

    pointed at upstream end, flaring out wider on the downstream end.



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