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Callan Bentley's Snapshots

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  1. Salmon River Canyon

    Snapshot Title: Salmon River Canyon
    Taken by: Callan Bentley

    Image: Rapid River Canyon, Idaho
    Image Owner: Callan Bentley



    Description:

    Rapid River Fish Hatchery and trailhead back this way.



  2. Wild Sheep Creek Formation

    Snapshot Title: Wild Sheep Creek Formation
    Taken by: Callan Bentley

    Image: Rapid River Canyon, Idaho
    Image Owner: Callan Bentley



    Description:

    Metavolcanic rocks



  3. Martin Bridge Formation

    Snapshot Title: Martin Bridge Formation
    Taken by: Callan Bentley

    Image: Rapid River Canyon, Idaho
    Image Owner: Callan Bentley



    Description:

    Marble (metamorphosed carbonate)



  4. J.R.

    Snapshot Title: J.R.
    Taken by: Callan Bentley

    Image: Rapid River Canyon, Idaho
    Image Owner: Callan Bentley



    Description:

    Geologist for scale.



  5. Exfoliation joint

    Snapshot Title: Exfoliation joint
    Taken by: Callan Bentley

    Image: Petersburg Granite at James River State Park - Richmond, VA
    Image Owner: Jeffrey Rollins



    Description:

    Subparallel to surface



  6. Pothole

    Snapshot Title: Pothole
    Taken by: Callan Bentley

    Image: Petersburg Granite at James River State Park - Richmond, VA
    Image Owner: Jeffrey Rollins



    Description:

    Evidence of incision by the James River.



  7. Xenolith

    Snapshot Title: Xenolith
    Taken by: Callan Bentley

    Image: Petersburg Granite at James River State Park - Richmond, VA
    Image Owner: Jeffrey Rollins



    Description:

    Foliated, darker country rock incorporated into the felsic intrusion.



  8. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Petersburg Granite at James River State Park - Richmond, VA
    Image Owner: Jeffrey Rollins



    Description:

    Field notebook: "Rollins - 2015"



  9. Chaotic zone

    Snapshot Title: Chaotic zone
    Taken by: Callan Bentley

    Image: Breccia boulder
    Image Owner: Callan Bentley



    Description:

    Clasts are completely disarticulated, rotated, and milled out (making them progressively rounder).



  10. Moderate dilational zone

    Snapshot Title: Moderate dilational zone
    Taken by: Callan Bentley

    Image: Breccia boulder
    Image Owner: Callan Bentley



    Description:

    Left-to-right extension and some clast rotation, but you can still see how the pieces were once connected.



  11. Relatively coherent zone

    Snapshot Title: Relatively coherent zone
    Taken by: Callan Bentley

    Image: Breccia boulder
    Image Owner: Callan Bentley



    Description:

    Not so broken up.



  12. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Breccia boulder
    Image Owner: Callan Bentley



    Description:

    This black bar is 1 centimeter long.



  13. Pencil for scale

    Snapshot Title: Pencil for scale
    Taken by: Callan Bentley

    Image: Permian Tuff of St. Gertrude, near Cottonwood, Idaho
    Image Owner: Callan Bentley



    Description:

    With 1 cm markings on the side.



  14. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Imbricated gravels of the Salmon River, Idaho
    Image Owner: Callan Bentley



    Description:

    Blurry 63 mm lens cap



  15. Angular relationship

    Snapshot Title: Angular relationship
    Taken by: Callan Bentley

    Image: Channeled Scabland with giant gravel bar, Pinto Ridge Road, WA
    Image Owner: Callan Bentley



    Description:

    Interesting - the horizontal units appear to have a tilted unit on top of them, dipping off to the right.



  16. Eroded basalt butte

    Snapshot Title: Eroded basalt butte
    Taken by: Callan Bentley

    Image: Channeled Scabland with giant gravel bar, Pinto Ridge Road, WA
    Image Owner: Callan Bentley



    Description:

    Gutted by the megafloods



  17. Giant gravel bar

    Snapshot Title: Giant gravel bar
    Taken by: Callan Bentley

    Image: Channeled Scabland with giant gravel bar, Pinto Ridge Road, WA
    Image Owner: Callan Bentley



    Description:

    Subaqueous gravel dune



  18. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Channeled Scabland with subaqueous gravel bars, Wilson Creek, WA
    Image Owner: Callan Bentley



    Description:

    Here's a GigaPan of this road cut:
    gigapan.com/gigapans/187288



  19. Giant gravel bar

    Snapshot Title: Giant gravel bar
    Taken by: Callan Bentley

    Image: Channeled Scabland with subaqueous gravel bars, Wilson Creek, WA
    Image Owner: Callan Bentley



    Description:

    Depositional feature - subaqueous gravel dune from the Missoula megafloods.



  20. Erosional cliff

    Snapshot Title: Erosional cliff
    Taken by: Callan Bentley

    Image: Channeled Scabland with subaqueous gravel bars, Wilson Creek, WA
    Image Owner: Callan Bentley



    Description:

    where the Missoula megafloods cut into Columbia River basalt flows.



  21. Bill

    Snapshot Title: Bill
    Taken by: Callan Bentley

    Image: Bar 3 cross section, near Wilson Creek, WA.
    Image Owner: Callan Bentley



    Description:

    Bill Richards of North Idaho College serves as sense of scale.



  22. Pencil for scale

    Snapshot Title: Pencil for scale
    Taken by: Callan Bentley

    Image: Foreset beds in gravel dune complex near Soap Lake
    Image Owner: Callan Bentley



    Description:

    1 cm black bars along its length.



  23. Cliffs

    Snapshot Title: Cliffs
    Taken by: Callan Bentley

    Image: Giant Current Ripples, Crescent Bar, Washington
    Image Owner: Callan Bentley



    Description:

    Cut into Columbia River basalt



  24. Pillows

    Snapshot Title: Pillows
    Taken by: Callan Bentley

    Image: Outcrop on Route 28 near Qunicy, WA
    Image Owner: Callan Bentley



    Description:

    Left: 3D sample
    Right: radial fractures in cross-section.



  25. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Meta-diamictite of the Mechum River Formation, Sharp Top, Virginia
    Image Owner: Callan Bentley



    Description:

    1 cm tall



  26. Stromatolite sample

    Snapshot Title: Stromatolite sample
    Taken by: Callan Bentley

    Image: White Mountain escarpment, Wyoming
    Image Owner: Callan Bentley



    Description:

    gigapan.com/gigapans/187031



  27. Groundmass

    Snapshot Title: Groundmass
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Aphanitic texture



  28. Geopetal V

    Snapshot Title: Geopetal V
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Jasper is first to be precipitated in the "stratigraphy" of the amygdule filling.



  29. Geopetal indicator IV

    Snapshot Title: Geopetal indicator IV
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Jasper is first to be precipitated in the "stratigraphy" of the amygdule filling.



  30. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    1 cm long



  31. Two more

    Snapshot Title: Two more
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Apparent geopetal indicators.



  32. Jasper geopetal indicator

    Snapshot Title: Jasper geopetal indicator
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Jasper lining the "bottom" of the vesicle void.



  33. Phenocryst

    Snapshot Title: Phenocryst
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    Plagioclase



  34. Paleo-level

    Snapshot Title: Paleo-level
    Taken by: Callan Bentley

    Image: Amydular (amygdaloidal) Catoctin Formation meta-basalt, Blue Ridge, Virginia
    Image Owner: Callan Bentley



    Description:

    and geopetal indicator (horizontal "top" to jasper deposit...



  35. Shell full of shells

    Snapshot Title: Shell full of shells
    Taken by: Callan Bentley

    Image: Brachiopod fauna of the Nealmont Formation
    Image Owner: Callan Bentley



    Description:

    Brachiopod shell with many other fossils filling its interior.



  36. Bryozoan

    Snapshot Title: Bryozoan
    Taken by: Callan Bentley

    Image: Brachiopod fauna of the Nealmont Formation
    Image Owner: Callan Bentley



    Description:

    Little fenestrae



  37. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Brachiopod fauna of the Nealmont Formation
    Image Owner: Callan Bentley



    Description:

    This is 1 cm wide.



  38. Where the pencil was manufactured

    Snapshot Title: Where the pencil was manufactured
    Taken by: Callan Bentley

    Image: Meta-komatiite
    Image Owner: Callan Bentley



    Description:

    CHINA



  39. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Meta-komatiite
    Image Owner: Callan Bentley



    Description:

    This is 1 cm.



  40. Strophomenid

    Snapshot Title: Strophomenid
    Taken by: Callan Bentley

    Image: Brachiopod fauna of the Nealmont Formation, Germany Valley, West Virginia
    Image Owner: Callan Bentley



    Description:

    classic



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