on April 2, 2022
What types of rocks are basalt?
Regional SpecificsWhat is Basalt? Basalt is a dark-colored, fine-grained, igneous rockigneous rockIgneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. What type of metamorphic rock
on April 2, 2022
What is the most recent eon?
Regional Specificsthe Phanerozoicthe Phanerozoic, which began about 540 million years ago. This eon is very distinct from the previous three—the Hadean, Archean, and Proterozoic—which are sometimes known as the Precambrian era. What are the 4 eons in order? For example, the entire age of the earth is divided into four eons: the Hadean Eon, the Archean
on April 2, 2022
Where are subduction zones?
Regional SpecificsSubduction zones occur all around the edge of the Pacific Ocean, offshore of Washington, Canada, Alaska, Russia, Japan and Indonesia. Called the “Ring of Fire,” these subduction zones are responsible for the world’s biggest earthquakes, the most terrible tsunamis and some of the worst volcanic eruptions. What plates have subduction zones? Only oceanic plates, which
on April 2, 2022
What are the 8 properties used to identify minerals?
Regional SpecificsMost minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity. What are the 10 mineral properties? These include: color, streak, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility, and many more. These physical properties are useful for identifying minerals. What are the
on April 2, 2022
Is hematite a stone or metal?
Regional SpecificsHematite is a natural stone that is often used to balance and support the healing of your body and your home when used with feng shui intention. The dark color can be used to protect and absorb any negative energies in your home. Is hematite a natural stone? Hematite is a natural stone that is
on April 2, 2022
What are the 4 eras of Earth history?
Regional SpecificsEarth’s history is characterized by four eons; in order from oldest to youngest, these are the Hadeon, Archean, Proterozoic, and Phanerozoic. What are the 4 major eras in Earth’s history in order? The Precambrian, Paleozoic, Mesozoic, and Cenozoic Eras The Geologic Time Scale is the history of the Earth broken down into four spans of