How Do Minerals & Rocks Get Their Names?
What’s in a Mineral Name? Before 1960 mineralogists would introduce new mineral names in In 1960, to reduce this chaos the International Mineralogical Society established. In 1960, to reduce this … Read More
Tag: rocks
Mud loggers descriptions of rocks
Properties of rock described by mud loggers Color It is recommended that colors of rock be described by mud loggers on wet samples under ten-powered magnification. The wet surface will … Read More
Correlation of Rock Layers
Explain how rocks of similar age that are in different places can be matched up. To develop a geologic time scale that is applicable to the entire Earth, rocks of … Read More
How Magmas Evolve
Describe how magmatic differentiation can generate a body that has mineralogy (chemical composition) that is different from its parent magma. Geologists have observed that, over time, a volcano may extrude … Read More
What Drives Metamorphism?
The agents of metamorphism include heat, pressure, directional stress, and chemically active fluids.During metamorphism, rocks may be subjected to all four metamorphic agents simultaneously.However, the degree of metamorphism and the … Read More