Four of the metamorphic rocks are gneiss,slate,marble and schist.
Igneous, sedimentary, metamorphic, and extraterrestrial.
What are the four metamorphic rock producing processes
sedimentary,metormorphic , igneous .........
There are three broad categories of rock (Igneous, Metamorphic and Sedimentary) but these are themselves further subdivided into a large number of differing rocks.
Sedimentary rocks are formed by a four step process called Lithification (1. Erosion, 2. Deposition, 3. Cementation, 4. Compaction). Metamorphic rocks are formed by heat, time, and pressure.
In the rock cycle, rocks undergo continuous transformation through four main processes: weathering and erosion, where rocks break down into sediments; sedimentation, where these sediments accumulate and compact to form sedimentary rocks; metamorphism, where heat and pressure alter existing rocks into metamorphic rocks; and melting, where rocks are transformed into magma, which can cool and solidify to create igneous rocks. This cycle illustrates the dynamic nature of Earth's materials.
Rocks can change types due to processes such as weathering and erosion, which break down existing rocks into sediment. These sediments can then be compacted and cemented to form sedimentary rocks. Additionally, metamorphism occurs when rocks are subjected to high pressure and temperature, transforming them into metamorphic rocks. Lastly, volcanic activity can melt rocks into magma, which can cool and solidify into igneous rocks.
Slate is a low-grade metamorphic rock characterized by fine-grained foliated structure. Phyllite is intermediate-grade metamorphic rock with a greater degree of crystallization and foliation than slate. Schist is a medium-grade metamorphic rock with visible mineral grains and strong foliation. Gneiss is a high-grade metamorphic rock with distinct banding of light and dark minerals and high crystallization.
First a rock gets erupted within or on the Earth surface in the form of igneous rocks. Those are over time eroded away and deposited as sedimentary rocks. By subjecting these rocks to tremendous pressure and heat they metamorphose or change into metamorphic rocks which can eventually wind up in molten state and get re-introduced and erupt back as igneous rocks.
rocks,ocean,glasiers,animals trust me
Igneous,sedimentry and metamorphic
Four types of metamorphic rock are marble, slate, quartzite, and schist. Each of these rocks forms through the alteration of existing rock types under high pressure and temperature conditions deep within the Earth's crust.