it is alternating layers of pyroclstic materials
The volcanoes that erupt both ways are located on or near boundaries between oceanic and continental crust over subduction zones.
The source of materials for volcanoes that erupt in both explosive and effusive ways is primarily the mantle beneath the Earth's crust. Magma is generated from the partial melting of the mantle rock, which can lead to either explosive eruptions (due to trapped gases) or effusive eruptions (due to low gas content). This is known through the study of volcanic rocks, gases emitted during eruptions, and monitoring of volcanic activity.
It is not uncommon for volcanoes to erupt every year, someplace in the world. Two countries that have volcanoes that erupt from time to time are the United States and the Philippines. Other countries include El Salvador, Iceland, and Africa.
Volcanoes that erupt both explosively and effusively are typically located along tectonic plate boundaries, known as subduction zones. Examples include stratovolcanoes in the Ring of Fire in the Pacific Ocean, like Mount St. Helens in the United States and Mount Merapi in Indonesia. These volcanoes can have both explosive eruptions, ejecting ash and lava, as well as effusive eruptions with flowing lava.
it is alternating layers of pyroclstic materials
it is alternating layers of pyroclstic materials
The volcanoes that erupt both ways are located on or near boundaries between oceanic and continental crust over subduction zones.
Active volcanoes and dormant volcanoes both have a likely chance to erupt and have erupted in the past.
The source of materials for volcanoes that erupt in both explosive and effusive ways is primarily the mantle beneath the Earth's crust. Magma is generated from the partial melting of the mantle rock, which can lead to either explosive eruptions (due to trapped gases) or effusive eruptions (due to low gas content). This is known through the study of volcanic rocks, gases emitted during eruptions, and monitoring of volcanic activity.
Many are in Europe.
Did you know that composite volcanoes make up 60% of the Earths volcanoes. Composite volcanoes don't always have to erupt from the top. They can have many magma chambers and can erupt from the sides. They can be made of basalt, rhyolite and/or andesite. They erupt both ash and lava. The lava is very thick. When the time comes for the volcano to erupt they start to become very quiet. (Sneaky eh?)
Both erupt basaltic lava, which has a low silica content and a high temperature.
It is not uncommon for volcanoes to erupt every year, someplace in the world. Two countries that have volcanoes that erupt from time to time are the United States and the Philippines. Other countries include El Salvador, Iceland, and Africa.
Volcanoes that erupt both explosively and effusively are typically located along tectonic plate boundaries, known as subduction zones. Examples include stratovolcanoes in the Ring of Fire in the Pacific Ocean, like Mount St. Helens in the United States and Mount Merapi in Indonesia. These volcanoes can have both explosive eruptions, ejecting ash and lava, as well as effusive eruptions with flowing lava.
Scientists explore volcanoes in order to study its past eruption and/or when it will possibly erupt again. If the volcano is inactive they examine the old rocks around it in order to know the history of that volcano. There are both active and inactive volcanoes both of which are studied by scientists.
Both shield volcanoes and cinder cones primarily erupt basaltic lava.