Quiz on Geology PDF

### Quiz James Usher: discovered fossils by looking at strange triangles in pieces of rock, determined them to be sharks teeth James Hutton: individual features take a long time to grow, foundation of geologic and relative time Steno Hutton: first geologic terms in order to determine which rocks...

### Quiz James Usher: discovered fossils by looking at strange triangles in pieces of rock, determined them to be sharks teeth James Hutton: individual features take a long time to grow, foundation of geologic and relative time Steno Hutton: first geologic terms in order to determine which rocks came first Principle of fossil succession:  Deeper species lived druther back Geologic principles (including uniformitarianism, super position, cross-cutting relations, and fossil succession) provide the basis for determining the relative ages of rocks and other geologic features. By working out relative ages, we can reconstruct the geologic history of a region. Unconformity Unconformities represent time intervals of nondeposition and possibly erosion. Where rock below the unconformity was folded or tilted before deposition of strata above, an angular unconformity occurs. Nonconformities juxtapose strata above with basement below. Strata above and below a disconformity are parallel, so a gap in the fossil record or evidence of erosion reveals the unconformity