Basic lava, also called mafic lava, is a type of lava that consists of 50 percent silica. This type of lava is highly fluid and commonly creates large lava flows. Basic lava can reach speeds of up to 20 miles per hour and reach distances of 60 miles.
lava dome has a more vicious lava than of a shield volcano.lava dome is formed by relatively, small bulbous gases,however for the shield volcano it is made up of BASIC lava.the basic lava spreads ...
Types of Lava : basic lava & Acidic lava Short cut to IAS/IPS/IFS/IRS/UPSC : Civil Service Lectures ... 7 15 13 Lava Flow Hawaii Kilauea Volcano Lava Flow GoPro Hero 2 - Duration: ...
Shield volcano/basaltic lava volcano/basic lava cone - A shield volcano is a wide volcano with shal-lowly-sloping sides. A shield volcano have a broad profile is built up over time by flow after flow of relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano. Many of the largest volcanoes on Earth are shield ...
Volcanoes are classified according to the ejected materials. Shield volcanoes or basic lava cones eject basic lava. As basic lava is non-viscous, it can reach very far from the vent before it finally cools down and solidifies. Therefore, basic lava cones have short height, concave slopes and large base area. Acidic lava cones eject acidic lava ...
Types of volcanic structures. As a first classification we shall consider the common forms of volcano associated with basic lava, acid lava, scoria eruption and mixed eruption. Basic Lava Volcanoes. Basic lavas are characteristically very fluid, so spread easily and give rise typically to volcanoes of low gradient.
Lava Dome Volcano . A lava dome is a mound that will form when lava piles up over a volcano’s vent instead of moving away. Since the eruption of lava is slow there is no chance for a lava flow to occur and therefore the lava dome will form.
The three main types of volcanoes are:. stratovolcano (or composite volcano) — a conical volcano consisting of layers of solid lava flows mixed with layers of other rock. cinder cone volcano ...
This video was made to show at the Pahoa Transfer Station for schoolchildren visiting to see the new lava flows. It gives a brief history of what happened up though November 2014.
A lava fountain is a volcanic phenomenon in which lava is forcefully but non-explosively ejected from a crater, vent, or fissure. The highest lava fountains recorded were during the 1999 eruption of Mount Etna in Italy, which reached heights of 2,000 m (6,562 ft).