Geology Archives - Page 2 of 5

Pacific Plate: Movement and Direction of the Pacific Tectonic Boundary

The Pacific Plate stretches all the way along the west coast of North America and reaches all the way to the east coast of the islands of Japan & Indonesia. […]

How Volcanoes Form Igneous Rocks

Volcanoes are the foundation for igneous rocks. When volcanoes erupt, magma and lava spews out. After cooling and solidifying, they become igneous rocks. […]

Human Timeline: How Long Have Humans Existed?

The earliest anatomically modern human fossil found was dated at about 200-300,000 years old in Morocco, Africa. They had modern faces and used stone tools. […]

Convergent Plate Boundaries Tectonics Type

Convergent Plate Boundaries: The Collision of Plate Tectonics

Convergent plate boundaries have some of the most violent catastrophes and geology on Earth. When plates smash together, it has created chains of volcanoes. […]

Hadean Eon: The Formation of Earth (4.6 to 4.0 billion years ago)

4,567,000,000 years ago, Earth was covered in molten lava. In the Hadean Eon, it was in its earliest stage of formation as it clumped from a cloud of dust. […]

African Plate and the East African Rift Zone

The African major plate contains all of Africa as well as the surrounding oceanic crust of the Atlantic Ocean. It moves at an average rate of 2.5 cm per year. […]

Soil Nutrients Deficiency and Replenishing

Plants mostly use water and carbon dioxide from the air to grow. But nutrients like nitrogen (N), phosphorus (P) & potassium (K) are also key ingredients. […]

Mass Extinctions: The 5 Biggest Dying Events in History

Earth has witnessed 5 mass extinctions where life experienced an abrupt ending. Time and time again, nature has always found a way to reshuffle the deck. […]

5 Soil Formation Factors: How Rocks Weather into Dirt

Soil formation is vital for food production and plant growth. Weathering is the process that breaks rock down into soils. Without it, soil wouldn’t exist. […]

Biological Weathering: How Living Things Break Down Rocks

Biological weathering can occur from mechanical force and chemical reactions such as through plants, bacteria, fungi, burrowing animals and living organisms […]

History of Oxygen in Earth’s Atmosphere

In Earth’s atmosphere history, oxygen levels have changed significantly. This includes hydrogen, helium, carbon dioxide and nitrogen composition in the air. […]

Is Vaalbara Earth’s First Supercontinent?

The evidence that Vaalbara (2.7-3.6 billion years ago) was the first supercontinent is mainly based on their sedimentary sequences and magnetic orientation. […]

Banded Iron Formation (BIF): How These Rocks Got Their Stripes

Long ago, oxygen filled the oceans. It mixed with iron which reacted by rusting. The seafloor collected rusted iron called banded iron formation (BIF). […]

Great Oxygenation Event: How Oxygen Filled the Atmosphere

Over 4 billion years ago, Earth’s atmosphere was mostly methane & nitrogen. The Great Oxygenation Event marks a time when free oxygen filled the atmosphere. […]

Pangea Fossils: Evidence of the Pangaea Supercontinent

At one point in time, all continents were merged together as one supercontinent “Pangea”. We’ve used fossil evidence to know continental drift exists. […]