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By the Principle of superposition of geological events, the fault or intrusion is more modern than the strata to which it cuts.

Fault E cuts strata A, B, C, and intrusion D, so it has to be more modern.

Intrusion D cuts strata A, B, and C, making it more modern than them, but less modern than Fault E.

By the principle of superposition of the strata, the most modern strata were deposited on top of the oldest. Therefore, stratum C is the oldest, followed by B and A.

The geological history is as follows:

• Deposit of the materials that formed stratum C.
• Deposit of the materials that formed stratum B.
• Deposit of the materials that formed stratum A.
• Magmatic intrusion D through already formed sedimentary rocks.
• Tensile stresses that produced failure E, which affects the above materials.
• Erosion and sedimentation until leaving the current relief on stratum A.

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The brown strata (A) are older than the dike B that runs through them.

Dam B is older than the erosion surface (C) that cuts it off.

Erosion surface C is older than the gray layers (D) above it.

The gray strata are older than the dike (E) that runs through it.

The dike (E) is cut by a fault (F), so the fault has to be more modern.

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• Deposit of the materials that will form strata 1, 2, 3 and 4.
• Folding that causes the layers to be inclined.
• Erosion.
• Deposit of the materials that will form layers 5, 6 and 7, on a surface of discordance.
• Erosion until leaving the current relief.

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• Deposit of materials from stratum E.
• Deposit of materials from stratum C.
• Deposit of materials from stratum B.
• Intrusion affecting strata E, C and B.
• Erosion.
• Deposit of materials from stratum A.
• Erosion.

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• Deposit of the materials that will form strata 1, 2, 3 and 4.
• Folding of strata 1, 2, 3 and 4.
• Erosion.
• Deposit of the materials that will form the stratum 5.

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• Deposit of materials that will form layers 1, 4 and 3.
• Folding.
• Reverse failure produced by compressive stress that affects materials 1, 4 and 3 that were already bent.
• Erosion.
• Deposit of materials 2.
• Erosion until the current relief remains.

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• Deposit of the materials that formed the brown and gray layers.
• Compressive stresses fold the strata and reverse failure A also occurs.
• Intrusion B going through the strata and into fault A.
• Erosion affecting the strata, fault A, and intrusion B.
• On the erosion surface, materials are deposited that form the C strata.
• A volcanic dam D cuts through intrusion B, fault A, and strata C.
• Erosion and deposit of the materials that form the E strata on the C strata and the Dyke.
• Normal failure F, due to distensive stresses, which affects the brown strata, the intrusion B, the strata C and the strata E.