The discontinuity indicates a gap in the rock record. What is the minimum and ma

Question

The discontinuity indicates a gap in the rock record. What is the minimum and maximum amount of time that is not reflected in the rock record at this location (in million years) KEY TO SYMBOLS Sedimentary rocks Conglomerate Gravel Sandstbne Siltstone Shale Clay Limestone Dolomite igneous rocks Metamorphic rocks Granite Basalt Schist Gneiss Other features Zone of Unconformity contact Fault Contact metamorphism Figure 8.2 Superposition and undeformed (original) horizontal strata. Block diagram showing undisturhed

Explanation / Answer

The discontinuity indicates a gap in the rock record. Minimum 430 Myr and maximum 485 Myr of time that is not reflected in the rock record at this location (in million years).

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