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Callan Bentley's Snapshots

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  1. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: Hampshire Formation, Corridor H, West Virginia
    Image Owner: Marissa Dudek



    Description:

    Here's a macro look at the contact between the oxidized and reduced zones in this shale. gigapan.com/gigapans/170646



  2. Fold

    Snapshot Title: Fold
    Taken by: Callan Bentley

    Image: Moose Mountain
    Image Owner: Mary Sanseverino



    Description:

    Nice exposure!



  3. A closer look

    Snapshot Title: A closer look
    Taken by: Callan Bentley

    Image: "Diamond in the Rough" outcrop of Hampshire Formation, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Here's a sample from this site of the contact between oxidized and reduced muds: gigapan.com/galleries/10019/gigapans/170646



  4. Zoom in here for a closer look

    Snapshot Title: Zoom in here for a closer look
    Taken by: Callan Bentley

    Image: Pennsylvanian Conemaugh Group - cropped
    Image Owner: Alan Pitts



    Description:

    gigapan.com/gigapans/177173



  5. GigaPanner Callan Bentley

    Snapshot Title: GigaPanner Callan Bentley
    Taken by: Callan Bentley

    Image: Pennsylvanian Conemaugh Group - cropped
    Image Owner: Alan Pitts



    Description:

    gigapan.com/profiles/callanbentley



  6. The Dragon's Tongue

    Snapshot Title: The Dragon's Tongue
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    (moniker by Mitch Blake)



  7. Channel

    Snapshot Title: Channel
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    with multiple episodes of infilling???



  8. Another truncated coal

    Snapshot Title: Another truncated coal
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    Orange-stained sandstone above



  9. Truncation

    Snapshot Title: Truncation
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    thin-bedded siltstone truncated by white sandstone



  10. Rockslide

    Snapshot Title: Rockslide
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    These outcrops are already falling apart.



  11. Truncation

    Snapshot Title: Truncation
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    Coal is older than sandstone



  12. GigaPan in progress

    Snapshot Title: GigaPan in progress
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    The results are here: gigapan.com/galleries/10019/gigapans/177078



  13. GigaPanMobile

    Snapshot Title: GigaPanMobile
    Taken by: Callan Bentley

    Image: "Dragon's Tongue" Outcrop, Corridor H, West Virginia
    Image Owner: Jeffrey Rollins



    Description:

    Of MAGICian Callan Bentley gigapan.com/profiles/callanbentley



  14. Cross-bedding

    Snapshot Title: Cross-bedding
    Taken by: Callan Bentley

    Image: Conococheague Formation exposed near Mulberry Run, Virginia
    Image Owner: Jeffrey Rollins



    Description:

    A signal of deposition in a directional current of water.



  15. Crenulated shale

    Snapshot Title: Crenulated shale
    Taken by: Callan Bentley

    Image: Conemaugh Group, showing paleoslump and fluvial scour features, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    1 cm wavelength crinkle folds in the shale right here.



  16. Recumbent folds
  17. What it's all about

    Snapshot Title: What it's all about
    Taken by: Callan Bentley

    Image: Conemaugh Group, showing paleoslump and fluvial scour features, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    The key feature of this outcrop is that the moderately dipping shale and a coal seam are truncated by a shallowly-dipping internally cross-bedded sandstone (with conglomerate).



  18. Truncation of coal

    Snapshot Title: Truncation of coal
    Taken by: Callan Bentley

    Image: Conemaugh Group, showing paleoslump and fluvial scour features, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    This 2 meter wide snapshot shows the key feature of this outcrop - moderately dipping shale and a coal seam truncated by a shallowly-dipping internally cross-bedded sandstone (with conglomerate).



  19. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Conemaugh Group, showing paleoslump and fluvial scour features, Corridor H, West Virginia
    Image Owner: Callan Bentley



    Description:

    Jacob's staff with 10 cm increments marked off in blue. Set as a horizontal reference marker, too.



  20. Scroll left

    Snapshot Title: Scroll left
    Taken by: Callan Bentley

    Image: Conococheague Formation exposed near Mulberry Run, Virginia
    Image Owner: Callan Bentley



    Description:

    Take a closer look at the next outcrop to the left (west) with this GigaPan: www.gigapan.com/gigapans/177155



  21. Scroll right

    Snapshot Title: Scroll right
    Taken by: Callan Bentley

    Image: Conococheague Formation at Mulberry Run, showing stromatolites
    Image Owner: Callan Bentley



    Description:

    Take a look at the next outcrop to the right (east): gigapan.com/gigapans/150643



  22. Stromatolite

    Snapshot Title: Stromatolite
    Taken by: Callan Bentley

    Image: Conococheague Formation at Mulberry Run, showing stromatolites
    Image Owner: Callan Bentley



    Description:

    dome-shaped layered microbial mat



  23. Rock hammer

    Snapshot Title: Rock hammer
    Taken by: Callan Bentley

    Image: Conococheague Formation at Mulberry Run, showing stromatolites
    Image Owner: Callan Bentley



    Description:

    to serve as a sense of scale.



  24. Bedding orientation

    Snapshot Title: Bedding orientation
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    320°, 50° (right hand rule)



  25. Coal inclusion

    Snapshot Title: Coal inclusion
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Coalified tree trunk? Deformed coal stratum?



  26. Folding

    Snapshot Title: Folding
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Bedding here is folded to a subvertical (slightly overturned position) - It's 295°, 10° at the lower left of this snapshot (right hand rule), 152°, 90° in the middle right (along the edge of the b...



  27. Folding

    Snapshot Title: Folding
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Looks like some folding (soft sediment deformation??) in this gray shale package.



  28. Marker bed

    Snapshot Title: Marker bed
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Prominent thick-bedded sandstone with central coal seam; stained orange. Hanging wall.



  29. Marker bed

    Snapshot Title: Marker bed
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Prominent thick-bedded sandstone with central coal seam; stained orange. Footwall.



  30. Slip surface

    Snapshot Title: Slip surface
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Running through the middle of this snapshot is a slip surface that dips to the left (west) and offsets a prominent orangey-colored massive sandstone double-bed with a coal seam running through the mid...



  31. Road sign

    Snapshot Title: Road sign
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Showing distances to towns, headed west.



  32. Attitude change

    Snapshot Title: Attitude change
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Big swivel in the orientation of bedding here - close to horizontal at left; gets much steeper to the right.



  33. Channel scour

    Snapshot Title: Channel scour
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Sandstone portion is most obvious, but there are subparallel strata below it too.



  34. The Dragon's Tongue

    Snapshot Title: The Dragon's Tongue
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    Coal bed with forked offshoots



  35. Dan Doctor's rig

    Snapshot Title: Dan Doctor's rig
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    to serve as a sense of scale



  36. Mitch Blake's rig

    Snapshot Title: Mitch Blake's rig
    Taken by: Callan Bentley

    Image: Conemaugh Group, Corridor H
    Image Owner: Callan Bentley



    Description:

    to serve as a sense of scale



  37. Crenulation in shale

    Snapshot Title: Crenulation in shale
    Taken by: Callan Bentley

    Image: Paleoslump and Fluvial Incision Structures, Conemaugh Group, Corridor H, West Virginia
    Image Owner: Marissa Dudek



    Description:

    Small ~1cm wavelength crinkles in the platy shale.



  38. Recumbent folds

    Snapshot Title: Recumbent folds
    Taken by: Callan Bentley

    Image: Paleoslump and Fluvial Incision Structures, Conemaugh Group, Corridor H, West Virginia
    Image Owner: Marissa Dudek



    Description:

    I noted these recumbent folds (axial plane ~horizontal) in the field.



  39. Sectioned clast

    Snapshot Title: Sectioned clast
    Taken by: Callan Bentley

    Image: Sykesville Formation, Chain Bridge Flats, DC
    Image Owner: Callan Bentley



    Description:

    Exposed on 2 surfaces



  40. Dark-colored clast

    Snapshot Title: Dark-colored clast
    Taken by: Callan Bentley

    Image: Sykesville Formation, Chain Bridge Flats, DC
    Image Owner: Callan Bentley



    Description:

    Long axis included w/in the plane of foliation (late Ordovician Taconian Orogeny)



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