(Solved): DIAGRAM 4 KEY-LITHOLOGIC SYMBOLS 1.) Unit A tapers or 'pinches out' to the leff. What stratigraph ...

DIAGRAM 4 KEY-LITHOLOGIC SYMBOLS 1.) Unit A tapers or 'pinches out' to the leff. What stratigraphic principle explains why this happens? 2.) What type of unconformity is shown in Diagram 4 ? 3.) Unit B is a shallow intrusive igneous body. Is it a dike or sill? 4.) Without fossils or absolute age dates, how do you know the relative ages of the units above the unconformity? Your answer should be a stratigraphic principle. 5.) Unit $\mathrm{A}$ is a deep water mudstone and becomes thicker to the right. Unit $\mathrm{C}$ is a quartz sandstone (beach sandstone) and grows thicker to the left. Which direction (left or right) was the shoreline when these rocks were deposited? Correlation: draw solid lines connecting units above the unconformity across the two canyons. Correlate the unconformity with a wavy line.