Formation of Argillite and Gossan

Argillite

Gossan

Add ⊕

1 Formation

1.1 Formation

An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.

Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.

1.2 Composition

1.2.1 Mineral Content

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon

1.2.2 Compound Content

Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide

Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

1.3 Transformation

1.3.1 Metamorphism

✔ ✘

1.3.2 Types of Metamorphism

Not Applicable

1.3.3 Weathering

✔ ✘

1.3.4 Types of Weathering

Biological Weathering

Not Applicable

1.3.5 Erosion

✔ ✘

1.3.6 Types of Erosion

Chemical Erosion

Chemical Erosion, Sea Erosion, Wind Erosion

Argillite and Gossan Formation

Formation of rocks is a long process and hence, Argillite and Gossan formation sounds very interesting. According to the formation, all rocks are divided into :Igneous Rocks, Fossil Rocks and Metamorphic Rocks. Igneous rocks form by crystallization of magma or lava. The magma is made up of various components of pre-existing rocks which have been subjected to melting either at subduction zones or within the Earth's mantle. Igneous rocks are generally seen at mid ocean ridges or in intra-plate hotspots. Sedimentary rocks are formed when sediments accumulate gradually. As the sediments are buried they get compacted as more and more material is deposited on top. Eventually the sediments become so dense that they form a rock. Metamorphic rocks are rocks which once existed as igneous or sedimentary rocks but have been subjected to varying degrees of pressure and heat within the Earth's crust. Get to know all about formation of Argillite and Gossan, composition of Argillite and Gossan and their transformation.