andesitic
No, active continental margins typically do not have a continental rise. Instead, they often have a steep continental slope that descends into a deep oceanic trench due to tectonic activity. Continental rises are found at passive continental margins where there is minimal tectonic activity.
The narrow continental margin is typically found along passive continental margins, where the continental shelf is relatively small and steep. This type of margin is characterized by a gentle slope leading to the continental slope, followed by the continental rise and then the abyssal plain. Such margins often have limited sediment accumulation and are less tectonically active compared to wider margins. They play a crucial role in marine ecosystems and can influence ocean circulation patterns.
Continental margins can be labeled as either active or passive. Active margins are typically found along tectonic plate boundaries, featuring steep coastlines, narrow continental shelves, and significant geological activity such as earthquakes and volcanic activity. In contrast, passive margins are located along stable tectonic plates, characterized by broader continental shelves, gentle slopes, and less geological activity. Each margin type can further be divided into sub-zones, including the continental shelf, slope, and rise.
Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. Composite volcanoes have the following characteristics: Acidic lava, which is very viscous (sticky). Steep sides as the lava doesn't flow very far before it solidifies
Volcanoes are often found along tectonic plate boundaries, such as the Ring of Fire around the Pacific Ocean. They can also occur in hotspots, like Hawaii, where magma rises from deep within the Earth's mantle. Volcanoes can be found both on land and underwater.
Shield Volcanoes - Wide base found at constructive plate margins Composite Volcanoes - Steeper Sides found at Destructive (subduction) margins
continental rise
continental rise
they have a continental rise
Andesitic magma is commonly found in subduction zones where oceanic crust is being forced beneath continental crust. These environments are typically associated with volcanic arcs and stratovolcanoes. Examples of where andesitic magma is found include the Andes Mountains in South America and the Cascades in the western United States.
Shield Volcanoes - Wide base found at constructive plate margins Composite Volcanoes - Steeper Sides found at Destructive (subduction) margins
No, active continental margins typically do not have a continental rise. Instead, they often have a steep continental slope that descends into a deep oceanic trench due to tectonic activity. Continental rises are found at passive continental margins where there is minimal tectonic activity.
Both active and passive margins are found at the edges of continents. Active margins are associated with tectonic activity and are typically marked by earthquakes, volcanoes, and mountain building, while passive margins are geologically stable and characterized by broad continental shelves and sediment deposition.
Continental margins can be labeled as either active or passive. Active margins are typically found along tectonic plate boundaries, featuring steep coastlines, narrow continental shelves, and significant geological activity such as earthquakes and volcanic activity. In contrast, passive margins are located along stable tectonic plates, characterized by broader continental shelves, gentle slopes, and less geological activity. Each margin type can further be divided into sub-zones, including the continental shelf, slope, and rise.
Active and passive margins describe the various characteristics of continental margins that are a result of plate tectonics. An active margin usually has numerous volcanoes and mountains, while a passive margin typically do not have these formations.
Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. Composite volcanoes have the following characteristics: Acidic lava, which is very viscous (sticky). Steep sides as the lava doesn't flow very far before it solidifies
most volcanoes are along the ring of fire