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Callan Bentley's Snapshots

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  1. Another batch of shells

    Snapshot Title: Another batch of shells
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    In 3D and cross-section.



  2. Shells

    Snapshot Title: Shells
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus productid brachiopod fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    in cross-section



  3. 3D shells

    Snapshot Title: 3D shells
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus productid brachiopod fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Exposed on the underside of the bedding plane.



  4. 3D shells

    Snapshot Title: 3D shells
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Exposed on the underside of the bedding plane.



  5. Cross-section of shells
  6. Cross-section of shell

    Snapshot Title: Cross-section of shell
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Gigantoproductus giganteus en.wikipedia.org/wiki/Gigantoproductus_giganteus Will open in a new tab or window



  7. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Gigantoproductus giganteus productid brachiopod fossils in Permian limestone, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Pencil with 1 cm black bars along the side.



  8. Pencil for scale

    Snapshot Title: Pencil for scale
    Taken by: Callan Bentley

    Image: Mylonite at Corrie Sands, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Each black bar is 1 cm long.



  9. Fulmar petrel

    Snapshot Title: Fulmar petrel
    Taken by: Callan Bentley

    Image: Drumadoon Sill
    Image Owner: Callan Bentley



    Description:

    Or jaeger?



  10. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Drumadoon Sill
    Image Owner: Callan Bentley



    Description:

    Two pigeons.



  11. Host rock

    Snapshot Title: Host rock
    Taken by: Callan Bentley

    Image: Drumadoon Sill
    Image Owner: Callan Bentley



    Description:

    Permian red beds



  12. Shell

    Snapshot Title: Shell
    Taken by: Callan Bentley

    Image: Sediment from the St. Ninian's Isle Tombolo, Scotland
    Image Owner: Robin Rohrback



    Description:

    Most of the light-colored material is CaCO3 shell fragments.



  13. Quartz

    Snapshot Title: Quartz
    Taken by: Callan Bentley

    Image: Sediment from the St. Ninian's Isle Tombolo, Scotland
    Image Owner: Robin Rohrback



    Description:

    Weathered out of veins in metamorphics?



  14. Phyllite

    Snapshot Title: Phyllite
    Taken by: Callan Bentley

    Image: Sediment from the St. Ninian's Isle Tombolo, Scotland
    Image Owner: Robin Rohrback



    Description:

    Plenty of outcrops of Dalradian phyllite on the neighboring landmasses.



  15. Splotches

    Snapshot Title: Splotches
    Taken by: Callan Bentley

    Image: Contact between two dikes, Blackwaterfoot, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Which are raindrops, which are amygdules?



  16. Contact

    Snapshot Title: Contact
    Taken by: Callan Bentley

    Image: Contact between two dikes, Blackwaterfoot, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Between the two intrusions. Which came first?



  17. Scale

    Snapshot Title: Scale
    Taken by: Callan Bentley

    Image: Contact between two dikes, Blackwaterfoot, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    1 cm



  18. Scale
  19. Valley

    Snapshot Title: Valley
    Taken by: Callan Bentley

    Image: Jura as viewed from Islay
    Image Owner: Callan Bentley



    Description:

    incised into raised beach platform.



  20. Paps of Jura

    Snapshot Title: Paps of Jura
    Taken by: Callan Bentley

    Image: Jura as viewed from Islay
    Image Owner: Callan Bentley



    Description:

    Mountains held up by quartzite.



  21. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Hutton's Unconformity, Arran
    Image Owner: Callan Bentley



    Description:

    Pencil w/ 1 cm black bars along the side.



  22. Fault

    Snapshot Title: Fault
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Same fault? Or a different one?



  23. Fault

    Snapshot Title: Fault
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Offset in the contact here.



  24. Strain

    Snapshot Title: Strain
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    These large grains show evidence of pressure solution in response to pure shear.



  25. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Mechanical pencil with 1 cm black bars along the side.



  26. Gradation

    Snapshot Title: Gradation
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Even in this small area, a gradational grain size transition can be observed.



  27. Crisp contact

    Snapshot Title: Crisp contact
    Taken by: Callan Bentley

    Image: Inverted graded bedding in Dalradian metagraywackes, Lochranza, Arran, Scotland
    Image Owner: Callan Bentley



    Description:

    Non-gradational switch from coarse to fine. So which what's up?



  28. Outsized clast

    Snapshot Title: Outsized clast
    Taken by: Callan Bentley

    Image: Port Askaig "Tillite" (Diamictite), Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Large chunk of granite



  29. Chilled margin

    Snapshot Title: Chilled margin
    Taken by: Callan Bentley

    Image: Dike cross-cutting Colonsay Group meta-sediments, Machir Beach, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Edge of dike, contact w/ host rocks.



  30. Folds and cleavage

    Snapshot Title: Folds and cleavage
    Taken by: Callan Bentley

    Image: Dike cross-cutting Colonsay Group meta-sediments, Machir Beach, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Cutting across the Kilchoman Phyllite of the Colonsay Group.



  31. Folds

    Snapshot Title: Folds
    Taken by: Callan Bentley

    Image: Dike cross-cutting Colonsay Group meta-sediments, Machir Beach, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    The metasediments here are folded.



  32. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Dike cross-cutting Colonsay Group meta-sediments, Machir Beach, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Pencil with 1 cm black bars along the side.



  33. Bake zone

    Snapshot Title: Bake zone
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Contact metamorphism.



  34. Amygdules and flow banding

    Snapshot Title: Amygdules and flow banding
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    In the dike.



  35. Dike

    Snapshot Title: Dike
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Igneous seam cutting across the dolostone.



  36. Stromatolites

    Snapshot Title: Stromatolites
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Doming upward.



  37. Stromatolite

    Snapshot Title: Stromatolite
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Doming upward.



  38. Stromatolites

    Snapshot Title: Stromatolites
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Upward doming.



  39. Stromatolite

    Snapshot Title: Stromatolite
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Doming upward.



  40. Sense of scale

    Snapshot Title: Sense of scale
    Taken by: Callan Bentley

    Image: Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
    Image Owner: Callan Bentley



    Description:

    Pencil with 1 cm black bars along the side.



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