Many types rocks are formed by evaporation. They are referred to either as evaporites or chemical sedimentary rocks. They form in dry climates where the water can rapidly evaporate leaving sediment behind to precipitate. Evaporites are divided into two groups:…
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I remember as a child visiting the Great Smoky Mountains in East Tennessee. My family and I would spend hours driving around in the mountains, pulling over at the multiple viewing areas, taking pictures of the seemingly endless scenery. Sure,…
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Metamorphism is when minerals recrystallize in pre-existing, parent, igneous or sedimentary rock. Pressure, temperature, fluids or deformations are some of the causes of this change. It can also occur when the rocks are buried or dragged by an active lithosphere,…
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There are six general types of metamorphism established by geologists. Metamorphic rocks are created when sedimentary, igneous, or other metamorphic rocks are exposed to extreme heat, pressure, and occasionally chemical solutions. The types of metamorphism are distinguished by the factors involved…
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Today, close to half of the world’s population lives in metropolitan areas and it is projected that by 2030 about 20% more will flock to the cities and urban centers. The influx of people to these areas that are bustling…
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Metamorphic rocks are those rocks which have been changed by metamorphic processes, typically heat and pressure increases due to one or more physical factors-such as plate tectonic movements of the Earth’s crust-that create a new environment for the rock. The…
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A Metamorphic rock is an igneous or sedimentary rock that has changed from its original form to another completely different rock, through a process called metamorphism. Metamorphism involves the alteration of existing rocks into new rocks either with intense heat…
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Metamorphic rocks are ones that have undergone a change of form during a process called metamorphism. Metamorphic rocks tend to form deep in the Earth’s crust where immense heat and pressure alter the chemical composition of a rock creating a…
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In California, which is one of the richest growing regions of the world, the decline in honeybee populations has been going on for two decades. Honeybees are critical for distributing pollen to millions of fruit trees, vegetable crops and other…
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Metamorphic rocks occur when rocks go through a change. This change happens under high temperatures, pressure and, at times, chemical fluids. When a rock goes through metamorphosis, it changes its texture and even the mineral composition. Metamorphic rocks are changed…
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