Magmatism and zones

Magmatism and Zones

Syl Andrei Pantinople, Terence Mates, Jannah Danica Maseral

What is Magmatism?

Magmatism is a geological process that involves the formation, movement, and solidification of magma, which is molten rock beneath the Earth's surface. When magma reaches the surface, it erupts as lava and forms volcanic features such as volcanoes, lava flows, and volcanic mountains.

hi

During magmatism, the Earth's mantle, which is located beneath the crust, undergoes partial melting. This creates magma, which is less dense than surrounding solid rock and therefore rises towars the surface. As magma ascends, it can interact with other rocks, causing melting, assimilation, and differention.

There are three types of Zones in magmatism

Convergent Plate Bounderies, Divergent Plate Bounderies, Hotspots

Convergent Plate bounderies

These zones occur where two tectonic plates collide or converge. Volcanoes in this zone are often explosive and can form volcanic arcs, such as The Cascade Range.

One of the examples of Convergent plate bounderies is

The Cascade Range

The Cascade Range is a volcanic arc in westen North America, extending from Northern California through Oregon and Washington. It is formed by the seduction of the Juan de Fuca beneath the North American Plate. Famous volcanoes in the Cascade Range include Mount Rainier, Mount St. Helens, and Mount Hood.

Divergent Plate bounderies

These zones occur where two tectonic plates move apart, creating a gap or rift. Volcanoes in this zone are typically less explosive and form along mid-ocean ridges, such as the Mid- Atlantic Ridge.

One of the examples of DIVERGENT plate bounderies is

iceland

The entire country of Iceland sits on top of the Mid-Atlantic Ridge. It experiences frequent volcanic activity due to the movement of tectonic plates.

Hotspots

Hotspots are areas of volcanic activity that are not directly associated with plate bounderies. These zones occur when mantle plume rises through the Earth's crush, creating volcanoes. Examples of hospots include te Hawaiian Islands and Yellowstone National Park.

One of the examples of hotspots is

Yellowstone national park

Located in the United States, Yellowstnes is another well-known hotspot zone. The hotspot beneath Yellowstone has created a supervolcano, which is responsible for the geothermal features and periodic eruptions in the area.

Thank you!

-Syl Andrei Pantinople-Jannah Danica Maseral -Terence Mates

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