structures batch 3.pdf
TRANSCRIPT
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Faults
Notmal
Ristric
Anthetic and snythetic
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Synrift sediments onlapping large rotated fault blocks which creates potential 4-way dip closures in younger strata. There are several gas chimneys seen over the fault blocks. A wedge of anomalously high amplitudes pinches out towards the shelf. Source: PGS/TGS
http://www.geoexpro.com/articles/2013/08/beneath-the-labrador-sea
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Traps
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Faults (Normal and Listric)
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Reverse fault
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Sny- rift Wedge shape deposits(during faulting) Onlaps partens
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Other features
1. Delta sequence
The sections outline the characteristic bedding within the delta sequence Inline NVGTI-92-106
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2. Differential Compaction
Yellow/Orange line shows the area that has undergone differential compaction. The BCU is normally a very hard surface and therefore fits into the model. Note that the thicknesses on the flanks are larger than above the domelike structure in the pre-rift section. Also note that the effect of differential compaction gradually dies out upwards indicated by the black lines.
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Passive margins
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Anticline
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Roll over anticline
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Volcano penetrating sea bottom (Atlantic margin)
Volcano
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Mud volcano
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volcanic
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salt Rim syncline