lava
An opening in Earth's crust through which lava flows is called a volcano. When pressure from molten rock beneath the surface builds up, it can erupt through the volcano, releasing lava, ash, and gases into the surrounding area.
An opening in the Earth's crust through which volcanic materials pass to the surface is called a volcano. Volcanoes can manifest in different forms, such as shield volcanoes, stratovolcanoes, and cinder cone volcanoes, depending on the type of eruption and the materials involved. Volcanic activity can range from gentle lava flows to explosive eruptions, influenced by factors like magma composition and gas content.
A natural opening where water can return to the surface is called a spring. Springs occur when groundwater flows up to the surface through an opening in the Earth's crust, such as a crack or fissure, due to pressure differences or geological formations. This allows the water to emerge on the land surface or into a body of water.
Heat from Earth's center flows toward the surface through a process called convection, where hot material rises and cooler material sinks. This movement creates a cycle that helps to transfer heat outwards. Over time, this heat transfer leads to the movement of tectonic plates, volcanic activity, and the formation of Earth's crust.
Most metal ores are deposited in the Earth's crust through a process called hydrothermal deposition. This occurs when hot water carrying dissolved minerals flows through cracks in the Earth's crust and deposits the minerals as the water cools. Over time, these deposits accumulate and form metal ores.
a valcano
Vent
lava
lava
Volcanoes
An opening in Earth's crust through which lava flows is called a volcano. When pressure from molten rock beneath the surface builds up, it can erupt through the volcano, releasing lava, ash, and gases into the surrounding area.
a valcano
Valcano
A volcano erupts when molten rock, known as magma, flows through a central opening in the Earth's crust called a vent. This release of magma, gases, and ash can result in a volcanic eruption.
Crater or vent. Sometimes lava also comes from fissures as well. However crater is the most commonly used term.
Lumen
the opening where the lava flows is call a vent