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Callan Bentley's Snapshots

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  1. Shelf fungus

    Snapshot Title: Shelf fungus
    Taken by: Callan Bentley

    Image: Patterson Creek Mountain Anticline 1
    Image Owner: Alan Pitts



    Description:

    Off on a tree



  2. Tension fractures galore

    Snapshot Title: Tension fractures galore
    Taken by: Callan Bentley

    Image: Patterson Creek Mountain Anticline 1
    Image Owner: Alan Pitts



    Description:

    Must have been a very stressed-out area



  3. Cave?

    Snapshot Title: Cave?
    Taken by: Callan Bentley

    Image: Patterson Creek Mountain Anticline 1
    Image Owner: Alan Pitts



    Description:

    Looks like it



  4. Rock hammer

    Snapshot Title: Rock hammer
    Taken by: Callan Bentley

    Image: Patterson Creek Mountain Anticline 1
    Image Owner: Alan Pitts



    Description:

    for scale



  5. Preferred alignment of grains

    Snapshot Title: Preferred alignment of grains
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    Long axes all point to upper right.



  6. Nubbin og a quartz vein

    Snapshot Title: Nubbin og a quartz vein
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    Just a tiny fragment left sticking to the edge of the sample.



  7. P sol & empty space

    Snapshot Title: P sol & empty space
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    Lovely example of a stack of sutured grains running from upper left towards lower right; empty space along strike both to the upper right and lower left of that. Strain pattern here appears to broadly...



  8. Sutured grains

    Snapshot Title: Sutured grains
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    Maximum stress oriented from upper left toward bottom right; note also the open gaps in the spaces between the grains in an upper right towards lower left direction...



  9. Rusty pancake

    Snapshot Title: Rusty pancake
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    with a dollop of quartz on top



  10. Sutured grain boundaries

    Snapshot Title: Sutured grain boundaries
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    P sol!



  11. Outsized grain

    Snapshot Title: Outsized grain
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    This thing is a pebble! Bigger than the rest of this otherwise well-sorted sample.



  12. Preferred alignment of grains

    Snapshot Title: Preferred alignment of grains
    Taken by: Callan Bentley

    Image: Strained Antietam Formation
    Image Owner: Callan Bentley



    Description:

    Perhaps due to pressure solution?



  13. Hiker

    Snapshot Title: Hiker
    Taken by: Callan Bentley

    Image: Seneca Rocks
    Image Owner: Alan Pitts



    Description:

    Headed for the hills!



  14. Sign, sign...

    Snapshot Title: Sign, sign...
    Taken by: Callan Bentley

    Image: Seneca Rocks
    Image Owner: Alan Pitts



    Description:

    ...everywhere a sign.



  15. Fishermen

    Snapshot Title: Fishermen
    Taken by: Callan Bentley

    Image: Seneca Rocks
    Image Owner: Alan Pitts



    Description:

    .



  16. Observation deck

    Snapshot Title: Observation deck
    Taken by: Callan Bentley

    Image: Seneca Rocks
    Image Owner: Alan Pitts



    Description:

    Reward for the hikers who are tough enough to get to the top, but not comfortable enough with heights to go walking out onto the upright bedding of the Rocks.



  17. Couple of vultures

    Snapshot Title: Couple of vultures
    Taken by: Callan Bentley

    Image: Seneca Rocks
    Image Owner: Alan Pitts



    Description:

    ? I think?



  18. Interesting cobble

    Snapshot Title: Interesting cobble
    Taken by: Callan Bentley

    Image: "Rocks of Virginia" garden at the DGMR
    Image Owner: Callan Bentley



    Description:

    It has stripes, and that is very important!



  19. Sample number

    Snapshot Title: Sample number
    Taken by: Callan Bentley

    Image: Coloeptera 1030b
    Image Owner: Robin Rohrback-Schiavone



    Description:

    1030B



  20. Antennae

    Snapshot Title: Antennae
    Taken by: Callan Bentley

    Image: Coloeptera 1030b
    Image Owner: Robin Rohrback-Schiavone



    Description:

    segments visible!



  21. Little abdomen

    Snapshot Title: Little abdomen
    Taken by: Callan Bentley

    Image: Coloeptera 1030b
    Image Owner: Robin Rohrback-Schiavone



    Description:

    of something...



  22. What is this critter?

    Snapshot Title: What is this critter?
    Taken by: Callan Bentley

    Image: Coloeptera 1030b
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Seems to have a very big head...



  23. Bonus wasp

    Snapshot Title: Bonus wasp
    Taken by: Callan Bentley

    Image: Coloeptera 1030b
    Image Owner: Robin Rohrback-Schiavone



    Description:

    A little something extra, revealed by the GigaPan!



  24. Ooid

    Snapshot Title: Ooid
    Taken by: Callan Bentley

    Image: Snowball Earth Eduational Rock Sample Suite TS-7
    Image Owner: Robin Rohrback-Schiavone



    Description:

    This grain contains concentrically zoned spherical grains! Are they ooids?



  25. Weird color difference

    Snapshot Title: Weird color difference
    Taken by: Callan Bentley

    Image: Snowball Earth Educational Rock Sample Suite TS-12
    Image Owner: Robin Rohrback-Schiavone



    Description:

    What's up with that?



  26. Dropstone

    Snapshot Title: Dropstone
    Taken by: Callan Bentley

    Image: Snowball Earth Educational Rock Sample Suite TS-12
    Image Owner: Robin Rohrback-Schiavone



    Description:

    .



  27. Cross bedding

    Snapshot Title: Cross bedding
    Taken by: Callan Bentley

    Image: Snowball Earth Educational Rock Sample Suite TS-12
    Image Owner: Robin Rohrback-Schiavone



    Description:

    current flow to the right



  28. Oblique fracture taking advantage of horizontal joint set

    Snapshot Title: Oblique fracture taking advantage of horizontal joint set
    Taken by: Callan Bentley

    Image: Conway Robinson State Forest- Diabase
    Image Owner: Alan Pitts



    Description:

    ...creating jagged zig zag staircase effect.



  29. Sea urchin spine?

    Snapshot Title: Sea urchin spine?
    Taken by: Callan Bentley

    Image: Sand from Miami, FL, USA
    Image Owner: Robin Rohrback-Schiavone



    Description:

    .



  30. Biotite cluster surrounding...

    Snapshot Title: Biotite cluster surrounding...
    Taken by: Callan Bentley

    Image: Granitic dikes in granite
    Image Owner: Callan Bentley



    Description:

    ... something green?



  31. Easter egg

    Snapshot Title: Easter egg
    Taken by: Callan Bentley

    Image: Sand from Virginia Beach, Virginia
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Well-rounded grain



  32. Curved columns

    Snapshot Title: Curved columns
    Taken by: Callan Bentley

    Image: Bishop Tuff in the Owens Gorge
    Image Owner: ahochstaedter



    Description:

    Columnar jointing of welded tuff



  33. Leaf

    Snapshot Title: Leaf
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    A little brown leaf - something native to the eastern slopes of the Sierra Nevada, presumably.



  34. Lint

    Snapshot Title: Lint
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    a stray fiber, probably not native to the sample



  35. Hornblende

    Snapshot Title: Hornblende
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Just a little guy, part of a bigger lithic clast dominated by quartz.



  36. Feldspar

    Snapshot Title: Feldspar
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    .



  37. Feldpsar

    Snapshot Title: Feldpsar
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Boxy, angular shape from 2 planes of cleavage more or less at right angles.



  38. Lithic clast

    Snapshot Title: Lithic clast
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    A little chunk of rock (multiple mineral crystals in a single particle of sediment).



  39. Organic bits

    Snapshot Title: Organic bits
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    From some of the native scrubby vegetation, no doubt.



  40. Quartz

    Snapshot Title: Quartz
    Taken by: Callan Bentley

    Image: Grus
    Image Owner: Robin Rohrback-Schiavone



    Description:

    Conchoidal fracture visible.



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