The original rock that has undergone metamorphism is called the protolith. Protolith can be any type of rock and sometimes the changes in texture and mineralogy are so dramatic that is difficult to distinguish what the protolith was. 1  Note that diagenesis and weathering are also a changes in form that occur in rocks.
Industrial Emergency Services, LLC is an industry leader in providing emergency preparedness, response and related safety services.mergency Services Leader. Industrial Emergency Services, LLC is an industry leader in providing emergency preparedness, response and related safety services. We have been working with our customers to protect their people and property for over 13 years in the United States and abroad.
Industrialisation or industrialization is the period of social and economic change that transforms a human group from an agrarian society into an industrial one, involving the extensive re-organisation of an economy for the purpose of manufacturing.