The major geological event of the Cambrian Period is that Rodina, the land mass that included all of the continents on Earth, split apart to form separate land masses that would eventually become the Earth as we know it today. The Cambrian Period lasted for about 53 million years.Know More
When the Cambrian Period began, land on Earth consisted of one super-continent called the Rodina. By the middle of the period, the Rodina broke apart into two different continents.
The mass that would eventually become modern Africa, Australia, South America, Antarctica and parts of Asia was called Gondwana, and it was located near the South Pole.
Laurentia would break up to become North America and much of Europe and it was located closer to the equator.Learn more about Geology
Geological principles state that if a fragment of rock is included, that is entirely surrounded by rock, it must be older than the surrounding rock. This is because it had to be present for the rock to form around it. This principle is one of several principles geologists use to guide them in guessing possible relative dates for rock formations they find during digs and other research.Full Answer >
The geological process of mountain building fits under the general term "orogenesis." This refers to the deformation of the Earth's crust at meeting points of the tectonic plates, which can move upward, downward, inward and outward.Full Answer >
Major events during the Jurassic included the further breakup of the supercontinent Pangaea, the development of subtropical conditions and larger dinosaurs. The earliest bird also took flight during the late Jurassic, and early mammals emerged that would later dominate the Earth.Full Answer >
Africa is the second largest continent on the Earth and includes about 22 percent of the Earth's land mass. It is also the second most populous continent, with 1.1 billion people, 16 percent of the world's population as of 2014. Half of those people are under 25 years of age. Over 2,000 languages spoken in Africa, and the most commonly spoken language is Arabic, with over 170 million speakers.Full Answer >