GEOLOGY

Detailed explanation-1: -Explanation; Gaps in rock layers that develop when agents of erosion remove existing rock layers are known as unconformities.

Detailed explanation-2: -These are called unconformities, and represent gaps in the rock record (periods of erosion and/or non-deposition).

Detailed explanation-3: -Put simply, an unconformity is a break in time in an otherwise continuous rock record. Unconformities are a type of geologic contact-a boundary between rocks-caused by a period of erosion or a pause in sediment accumulation, followed by the deposition of sediments anew.

Detailed explanation-4: -Though the rocks are right next to each other, they’re from very different time periods. The rocks representing the geologic record in between are missing. Geologists call this phenomenon the Great Unconformity. Although unconformities, or gaps in the rock record, are common, the Great Unconformity earns its title.

Detailed explanation-5: -Geologists can learn a lot about Earth’s history by studying sedimentary rock layers. But in some places, there’s a gap in time when no rock layers are present. A gap in the sequence of rock layers is called an unconformity.