Use the figure to answer the following questions. Bed 3 is the-oidest-bed and be

Question

Use the figure to answer the following questions. Bed 3 is the-oidest-bed and bed 8 is the youngest odae 8 6 4 3 7 16) The fold axis is ? (0.5pt) a) plunging b) non-plunging 17) This is a map of what type of structure? (0.5pt) a) non-plunging synclineb)non-plunging anticline c) plunging syncline 18) List the factors that determines the type of structure. (0.5pt) d) plunging a) the shape of the different layers and the strike and dip symbols b) the age relationship (oldest on the outside, youngest on the inside) c) the age relationship (youngest on the outside, oldest on the inside) d) a and b e) a and c 19) This structure results fromS 20) This type of structure typically forms at 21) The fold is an example of , stress. (0.5pt) a) tension b) ductile (plastic) c) compression d) brittle e) shear plate boundaries. (0.5pt) a) convergent b) divergent c) transform strain? (0.5pt d) brittle e) ductile (plas a) compression b) elastic c) tension

Explanation / Answer

as you have written bed 3 is yougest and the bed 8 is oldest, i am considering this.

16 - b non plunging.

here the hinges are of equal thickness as their limbs , if the fold was plunging towards east then the outer bed have the maximum thickness of hinge and if the fold was plunging towards west then the outer bed hinge must have the less thickness , hence the fold is non plunging.

17 - a non punging syncline

in syncline we have the core is youngest while the upper bed is oldest hence it is non plunging syncline.

18 - e) a and c

the factors which control the structure of fold is the layering of fold and the strike dip symbol and their age relationship as this determine the syncline and anticline .

19) -c)

fold is formed due to compression .

20) a)

the fold mosty form at the convergent plate boundries as there we have the compressional stress .

21) e

the fold once created it takes that shape through out its life hence it must be plastic (ductile) strain .

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