GENERAL GEOLOGY

Detailed explanation-1: -The principle of cross-cutting relationships states that any geological feature that cuts across, or disrupts another feature must be younger than the feature that is disrupted. An example of this is given in Figure 8.7, which shows three different sedimentary layers.

Detailed explanation-2: -The principle of cross-cutting relationships Any geologic feature that crosscuts or modifies another feature must be younger than the rocks it cuts through. The cross-cutting feature is the younger feature because there must be something previously there to cross-cut.

Detailed explanation-3: -The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts. The fault labeled ‘E’ cuts through all three sedimentary rock layers (A, B, and C) and also cuts through the intrusion (D). So the fault must be the youngest formation that is seen.

Detailed explanation-4: -The law of lateral continuity states that fault lines and igneous rocks are younger features that cut through older features of rocks.

Detailed explanation-5: -The principle of intrusive relationships concerns crosscutting intrusions. In geology, when an igneous intrusion cuts across a formation of sedimentary rock, it can be determined that the igneous intrusion is younger than the sedimentary rock.