- Basaltic magma, which is high in temperature, very low on silica and with low gas content. …
- Basic lava, which is non-acidic and very runny.
- Gentle sides as the lava flows for long distances before it solidifies.
- No layers, as the volcano just consists of lava.
Which of the following best describes a shield volcano?
A shield volcano is
a wide volcano with shallowly-sloping sides
. Shield volcanoes are formed by lava flows of low viscosity – lava that flows easily.
What are the characteristics of shield and composite volcanoes?
Composite volcanoes are tall, steep cones that produce explosive eruptions
. Shield volcanoes form very large, gently sloped mounds from effusive eruptions. Cinder cones are the smallest volcanoes and result from accumulation of many small fragments of ejected material.
What are the distinct characteristics of shield cones?
Some unique characteristics of shield volcanoes are:
wide, broad dome shape
.
can have asymmetrical sides due to eruptions in vents
along the side of the volcano (rift zones) made from sheets of cooled lava flows (basalt)
What are the characteristics of the three types of volcanoes?
There are three main types of volcano –
composite or strato, shield and dome
. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.
What are the three major types of volcano?
Geologists generally group volcanoes into four main kinds–
cinder cones, composite volcanoes, shield volcanoes
, and lava domes.
What are 5 interesting facts about volcanoes?
- There are
Three
Major Kinds of
Volcanoes
: … -
Volcanoes
Erupt Because of Escaping Magma: … -
Volcanoes
can be Active, Dormant or Extinct: … -
Volcanoes
can Grow Quickly: … - There are 20
Volcanoes
Erupting Right Now: … -
Volcanoes
are Dangerous: … - Supervolcanoes are Really Dangerous:
What are the types of shield volcano?
Examples of shield volcanoes are Kilauea and Mauna Loa (and their Hawaiian friends)
, Fernandina (and its Galápagos friends), Karthala, Erta Ale, Tolbachik, Masaya, and many others
. Here are 4 of the volcanoes that comprise the big island of Hawai’i. They are Mauna Kea (MK), Mauna Loa (ML), Hualalai (H), and Kohala (K).
What are the 5 types of volcanic eruption?
Volcanic eruptions may fall into six major types:
Icelandic, Hawaiian, Strombolian, Vulcanian, Pelean, and Plinian
.
How does a shield volcano look like?
Shield volcanoes are large volcanoes that are built almost entirely of fluid lava flows, and have broad sloping sides and are generally surrounded by
gently sloping hills in a circular or fan-shaped pattern
that looks like a warrior’s shield.
What are the two types of volcano?
Strictly speaking there are two broad types of volcano,
a stratovolcano and a shield volcano
, although there are lots of different volcanic features that can form from erupted magma (such as cinder cones or lava domes) as well processes that shape volcanoes.
What are 3 differences between shield and composite volcanoes?
Composite volcanoes have a low magma supply rate
, resulting in infrequent eruptions. Shield volcanoes feature basaltic lava. This type of lava is hot, fluid and low in gas content. Shield volcanoes are characterized by a high magma supply rate, lending itself to frequent eruptions.
What is the lava like in a shield volcano?
Shield volcanoes have the following characteristics: basic lava, which is
non-acidic and very runny
.
gentle sides
as the lava flows for long distances before it solidifies. no layers, as the volcano just consists of lava.
Where are shield volcanoes commonly found?
Shield volcanoes are found
worldwide
. They can form over hotspots (points where magma from below the surface wells up), such as the Hawaiian–Emperor seamount chain and the Galápagos Islands, or over more conventional rift zones, such as the Icelandic shields and the shield volcanoes of East Africa.
What are the 11 types of volcanoes?
- Cinder Cone Volcanoes: These are the simplest type of volcano. …
- Composite Volcanoes: Composite volcanoes, or stratovolcanoes make up some of the world’s most memorable mountains: Mount Rainier, Mount Fuji, and Mount Cotopaxi, for example. …
- Shield Volcanoes: …
- Lava Domes:
Which type of volcano is the most explosive?
Because they form in a system of underground conduits,
stratovolcanoes
may blow out the sides of the cone as well as the summit crater. Stratovolcanoes are considered the most violent.
