Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900...

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Describing folds

Transcript of Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900...

Page 1: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)

Describing folds

Page 2: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)

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480.0500.0520.0540.0560.0580.0600.0620.0640.0660.0680.0- B90-37 -

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c)E

CMP

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1.25 km

Possible descriptive terms:

Hinge

LimbLimb

Axial surface

Interlimb angle

Things to label:

Limb

Interlimb angle

Hinge✕

Axial surface

Upright symmetrical antiform with open rounded fold

Page 3: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)

Possible descriptive term:

Monocline, a step shaped fold

Page 4: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)

Possible descriptive terms:

Upright antiforms with open rounded folds, the eastern

one is symmetrical, the western one is asymmetical

and

an upright angular symmetrical open synform.

Page 5: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)
Page 6: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)
Page 7: Describing folds. 200 300 400 500 600 700 800 900 1000 1100 1200 200 300 400 500 600 700 800 900 1000 1100 1200 1180120011601140110010601020980 TWT (msec)

Possible descriptive terms: Rounded inclined symmetric open antiform with several faults; two normal and one reverse. The faults indicate there has been more than one episode of deformation, and the faults are likely to have been re-activated.