Image:Junction fault 0112.jpg

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Description
English: Dividing fault between Appalachian Mountains and Allegheny Plateau. A major geologic fault (directly behind small trees) can be seen in a new roadcut about 10 miles north of en:Williamsport, Pennsylvania on new Route 15. The fault is just about at the line that divides the folded en:Appalachian Mountains and the merely uplifted en:dissected plateau of the en:Allegheny Plateau. On the left hand (south side) is metamorphic rock. On the right hand is en:sedimentary rock, which, as one continues northward becomes mostly horizontal.

Image copyleft: Image taken by me, released under GFDL, Pollinator 06:08, Dec 25, 2004 (UTC)


I'm not so sure those are metamorphic rocks on the left hand side of the photo. Been to the area and I thought they were sedimentary rocks. We are looking at a synclinal fold occuring in a laminar sedimentary sequence. This is not a fault at all.

So where is the repetition of strata across the synclinal fold closure if you are correct? The right-hand side appears to have the right kinematic indication (dragging or bedding against the 'fault') to indicate thrusting??..maybe you should go back and have anyother look?

Source

Transfered from en.wikipedia

Date

2004-12-25 (original upload date)

Author

Pollinator at en.wikipedia

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( Reusing this image)

GFDL-WITH-DISCLAIMERS; Released under the GNU Free Documentation License.


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  • 2004-12-25 06:01 Pollinator 2560×1920×8 (4068378 bytes) Dividing fault between Appalachian Mountains and Allegheny Plateau

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current 10:08, 17 December 2007 2,560×1,920 (3.88 MB) File Upload Bot (Magnus Manske) ( {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|Dividing fault between Appalachian Mountains and Allegheny Plateau A major geologic fault (directly behind small trees) can be seen in a new roadcut about 10 miles north of [[:en:Williams)
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