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FTELD TRIP ACROSS THE APPALACHTAN OROGENIC BELT

FTELD TRIP ACROSS THE APPALACHTAN OROGENIC BELT

FTELD TRIP ACROSS THE APPALACHTAN OROGENIC BELT

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synclinal east hrall meets the south highwall. The bedding<br />

pIane, while dipping steeply, contains some large wrinkles,<br />

which are not reflected in the overlying synclinal sequence.<br />

Could the wrinkles actually develop in to synclines and<br />

anticlines? How far does a fold structure continue, anyway?<br />

Don't all folds have to stop somewhere? and how do they stop?<br />

Think about the folds in a wrinkled rug - do they die out<br />

along their length? Could rocks deforrn tike that too? Could<br />

the whaleback anticline simply die out, by flattening out?<br />

4. The lack of continuity of syncline, whaleback anticline and<br />

overturned anticline at the end of the pit could suggest that<br />

the two sides are separated by a fautt of some kind. Could<br />

the positions of the structures be consistent with movement on<br />

fault blocks? a strike-slip fault? a thrust fault? And if<br />

this is true, the fault must pass through the pit at the east<br />

end, between the anticline and the wall. Is there evidence<br />

there for a fault? What would you look for to postulate the<br />

presence of a fault?<br />

In summary, your opinions and conclusions are as good as anyone<br />

else's .<br />

TIIB TOSSTLS<br />

The debris fron the mining operations, which rnay be found<br />

anywhere in the nrine area, contains abundant fossil remains of<br />

terrestrial plants. Most of the fossil plants brere unique to the<br />

Pennsylvanian Period, and include scale trees, other types of<br />

trees and large plants, ferns, and other plant types. Diagrams of<br />

the more commonly found plant types are shown on the following<br />

p.age. Leaves, bark, stems, scales, branches, logs, and occasional<br />

stumps and other parts of the plants may be found in abundance.<br />

VirtualIy every piece of shaly rock is fossiliferous. Collect<br />

away, with the coal company's blessingsi the best collectingr is<br />

probably on the tailings piles at above road level. But be<br />

careful of footing.

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