If You Observe a Disconformity, You Would Infer That the Region

question 94

Multiple Choice

If you observe a disconformity, you would infer that the region had experienced______ .

• A) deposition in shallow water, uplift or lowering of sea level enough to expose the rocks to erosion and non- deposition for a period of time, and subsequent resubmergence of the remaining sedimentary units where they experience new deposition
• B) uplift and tilting of sedimentary units that exposes them to erosion over a period of time with subsequent renewed deposition
• C) deposition of sedimentary layers on crystalline igneous or metamorphic rocks that are exposed at the surface of the earth
• D) intrusion of igneous rocks into a depositional setting, forcing the sedimentary layers upward and possibly deforming them, followed by subsidence of the remaining sedimentary layers and renewed deposition

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