1 Formation
1.1 Formation
Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite rock and forms as a result of magmatic differentiation.
Chalk is formed from lime mud, which accumulates on the sea floor which is then transformed into rock by geological processes.
1.2 Composition
1.2.1 Mineral Content
Augite, Biotite, Feldspar, Hornblade, Plagioclase, Quartz
Calcite, Clay, Clay Minerals, Quartz, Sand
1.2.2 Compound Content
Potassium Oxide, Sodium Oxide, Silicon Dioxide
Ca, NaCl, CaO
1.3 Transformation
1.3.1 Metamorphism
1.3.2 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Not Applicable
1.3.3 Weathering
1.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering
1.3.5 Erosion
1.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Water Erosion