Folds are geologic structures that are formed when rocks bend but do not break.
Clastic: These rocks are composed predominantly of broken pieces of older weathered and eroded rocks Non-clastic/ Organic: A sedimentary rock composed of the remains of plants and animals.
It is definitely a sedimentary rock because you cannot find sea shells where metamorphic rocks are formed, nor can you find them in magma and lava. This is because metamorphic rocks are formed below the earths surface where the plates of the earth squash an existing rock even small to make it metamorphic, and igneous rocks are obviously formed in volcanoes where the heat and pressure would melt the fossil.
Birds have gizzards that rely on small pebbles to help grind the food they ingest. The human animals' use of rocks is breathtaking in scope. Sea otters use rocks to break shells of sea creatures before eating them.
Copper is actually an element, although it is present in rocks as a mineral. Physically, it's a metal mostly used for the conduction of electricity. As for other rocks, granite and basalt are igneous rocks, as in they were formed straight from a flow of lava. They will be generally of one colour and are not easy to break. Sedimentary rocks include limestone, sandstone, and other softer rocks. They are basically layers of mud that have hardened and compressed into rock over millions of years. You can find lots of fossils in sedimentary rocks. Beds of sedimentary rock will look like many layers sandwiched on top of each other and should be fairly brittle and easy to break. Metamorphic rock is sedimentary rock that has fused and reformed into "igneous" or solid rock because of heat, pressure and time. The sedimentary rock was heated under the surface of the earth, re-fused into a solid mass, and then cooled. Some rocks will have different coloured bands around them, this is a good indication of metamorphic process.
roots and diggingPlant roots break up rocks as they grow in search of water and nutrients. Animals that burrow in the ground expose rocks to the air where they can be further weathered.When animals die they produce acids which reacts with rocks causing them to break down or decay.
Folds are geologic structures that are formed when rocks bend but do not break.
Planes of minerals formed in response to stress, a feature of many metamorphic rocks
The process in which rocks first bend and then break is called deformation. Deformation occurs when rocks experience stress, which can be caused by tectonic forces, pressure, or temperature changes. Initially, rocks may bend or fold under this stress, but if the stress is too great, the rocks can eventually break or fracture.
it has rocks and stones that break your bones
When they have to much stress put on them.
earthquake
Earthquakes
Fault
Emotional stress
They can give you clues to how, when and where the rocks formed. :D
The rocks either fracture under the stress, or become compressed in different rocks known as "metamorphic".
Name a feature that is formed by underground erosion