Large boulders and smaller rocks can be carried by a river. When rocks and sediment are displaced, it's called erosion.
Clay particles are very fine grained and light weight, so easily carried along by flowing water.
New Zealand is the place that has huge round boulders along the beach. These boulders are called the Moeraki Boulders.
Moraine is the word for rocks and boulders carried along by a glacier and then left behind.
Particles of soil and rock that are carried along in water are called sediment. They can include a range of sizes, from tiny clay particles to larger pebbles and boulders. Sediment transport is an important process in shaping the landscape and can contribute to erosion and deposition in rivers and other water bodies.
The boulders, sand, clay, and silt that are deposited by a glacier as it slows down and melts are called glacial till. This material is unsorted and varies in size, ranging from large boulders to fine silt. Glacial till is often found as moraines, which are accumulations of debris along the edges or at the terminus of a glacier.
Large, heavy materials such as boulders or gravel are least likely to be carried in suspension because they require more energy to keep them moving in the water column. Instead, these materials tend to be transported as bed load, rolling or sliding along the riverbed.
A stream can bounce large pebbles and boulders, along the stream bed. These rocks are called bed load. A stream can carry sand in suspension. These materials, called suspended load, make the river look muddy. The dissolved load is material carried in a solution, which means that the material is dissolved in the water. Sodium and calcium are some of the materials in the dissolved load.
sediment
Carried Along was created in 2000.
Rip rap is a pile of large boulders or rocks -- usually placed along a shoreline to help prevent erosing from waves. http://lmgtfy.com/?q=what+is+rip+rap
Sediment that is carried by a stream along the bottom of its channel.