The dip of the inclined layers are shown using strike-and-dip symbols. If the la

Question

The dip of the inclined layers are shown using strike-and-dip symbols. If the layers are horizontal, they are depicted with a symbol that is a circle with a cross inside. On the geologic map, the faults are shown as heavy black lines with an arrow indicating the direction and amount in which the fault dips.

Based along line A-A', why is the outcrop width of the Kincaid Limestone (Mkc) greater on the eastern side of the syncline than on the western side?

The unit is faulted and dips more steeply on the western side than it does on the eastern side.

      
It is eroded along an unconformity below the Rosiclare Sandstone.

      
It is eroded along an unconformity below the Tar Spring Sandstone.

      
The unit dips ore steeply on the eastern side than it does on the western side.

The arrows on the faults indicate which way the fault dips. What type of fault is most common in the area along A-A'?

Thrust faults

      
Reverse faults

      
Normal faults

      
There is no way to tell what types of faults are present.

Ms Mwvr Mme 80 Mts 10 A Mts Mpt Mme MWN Msgf 83 Msgr Msgl Mre Msgf Msgl 1 mile Msgl Mcb PENNSYLVANIAN Caseyville Fm. MISSISSIPPIAN Mkc Kincaid Limestone Mpt Palestine Sandstone Mme Menard Limestone Mwv Waltersburg Sis. Mts Tar Spring Ss. Mcb Cypress-Bethel Ss. Mre Renault Formation Msgl Levias Limestone Msgr Rosiclare Sandstone Msgf Fredonia Limestone Msl St. Louis Limestone

Explanation / Answer

1) The unit is faulted and dips more steeply on the western side than it does on the eastern side. Because we can expect some traces of fault on west side of the kinacaid limestone.

2) Normal faults. Because in the normal faults the direction of dip is set towards hangling wall that exists below the foot wall. So here we can expect such type.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---