Category: Regional Specifics

What is the Paleozoic Era also known as?

Paleozoic Era, or Palaeozoic Era, Major interval of geologic time, c. 542–251 million years ago. From the Greek for “ancient life,” it is the first era of the Phanerozoic Eon and is followed by the Mesozoic Era. What was the middle Paleozoic Era known as? Figure 12.7: The middle Paleozoic is known as the Age

How is a transform boundary formed?

A transform plate boundary occurs when two plates slide past each other, horizontally. A well-known transform plate boundary is the San Andreas Fault, which is responsible for many of California’s earthquakes. Where are transform boundaries formed? Transform boundaries Most transform faults are found on the ocean floor. They commonly offset the active spreading ridges, producing

What is good porosity?

What is a good porosity percentage? For most rocks, porosity varies from less than 1% to 40%. The porosity of a rock depends on many factors, including the rock type and how the grains of a rock are arranged. Is a higher porosity better? The characteristics of higher porosity hair Whether due to genetics or

What do the divisions of the geologic time scale represent?

The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages. What defines the divisions of the geologic time scale? The geologic time scale provides geologists across the world with a shared reference of

How many earthquakes does Australia have?

While some parts of the country are more likely to experience earthquakes than others, large earthquakes can occur anywhere across the continent, and without warning. On average 100 earthquakes of magnitude 3 or more are recorded in Australia each year. How many earthquakes happen a day in Australia? How often do quakes occur in Australia?

What should a toddler do during an earthquake?

You will never know if the first jolt is start of the big one…so always Drop, Cover, and Hold On immediately! A parent or caregiver should carefully pick up the baby in their arms, holding the child against their chest, and carry them as they Drop, Cover and Hold On. How do you explain an

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