Rocks formed by solidification (lithification) of sediments formed and transported at the Earth's surface.

a rock formed of fragments transported from their source, usually by water. The sediments are usually laid down in layers. Sandstone and limestone, the two major rocks found at Mammoth Cave, are both sedimentary.

Refers to rocks formed by the consolidation and lithification (rock-forming processes) of accumulated sediments.

Layered rocks that are formed by the consolidation of loose particles (sediments) of older rocks. They may result from river, wind, or glacial transport, as well as through slow accumulation on the sea floor. Sedimentary rocks also include chemical precipitates such as limestone and rock salt.

Rocks formed on the earth's surface or sea floor from small particles or dissolved substances from other rocks

rocks formed through the process of deposition of particles consisting of either minerals or rock fragments.

rocks formed by the settling of particles in water or air. These accumulations result in layers and bedding.

rocks formed by the accumulation of fragments, or the precipitation of dissolved material, that result from the weathering of pre-existing rocks.

Rocks formed by the accumulation of sediment in water or from air.

Rock formed from the weathered products of preexisting rocks that have been transported by water, wind, or glaciers. Sedimentary rocks include various varieties of limestone and sandstone.

Rocks formed by the deposition or accumulation of pieces of weathered rocks that later were buried and cemented, or glued, together.

most form on from particles eroded from rocks on land; some form from dissolved chemicals or organic particles from shells or other living organisms

rocks, which have been deposited in layers, often by water, and consist of material worn away from pre-existing rock.

Sedimentary rocks are formed by the layering of air or water borne mineral grains cemented together (chalk, clay, coal, limestone, mudstone, sandstone and shale).

Secondary rocks formed from material derived from other rocks and laid down under water. Examples are limestone, shale and sandstone.

Fossils are found primarily in sedimentary rocks, formed from particles of sediment, usually laid down in water. As great weights of sediment form, the pressure compacts and cements the deeper sediments into rock. The succession of layers in sedimentary rocks forms a geological 'timeline', and the study of fossils found in different layers makes it possible to track the development of plant and animal life over time. See also igneous and metamorphic rocks.

Secondary rocks formed from material derived from other rocks and laid down under water, e.g., limestone, shale and sandstone.

recycled rocks made of fragments most often of other rocks and minerals, or organic remains, such as shells or shell debris. The organic parts of any sedimentary rock are referred to as fossils.

Sedimentary rocks are formed when rock fragments are deposited and pressed together. Useful products from oil

loose, unconsolidated accumulations of mineral or rock particles that have been transported by wind, water, or ice, or shifted under the influence of gravity, and redeposited.

Rocks formed by the consolidation and hardening of rock fragments organic remains, or other material.

Rocks formed from material derived from pre-existing rocks by processes of denudation, together with material of organic origin. The term includes both consolidated and unconsolidated material; the latter is also referred to as 'sediment'.

Rocks composed of approximately horizontal layers (beds).