If lava cools almost instantly, the rocks that form are glassy with no individual crystals. The basalt has a glassy appearance because of very... View Article
Basaltic magma is formed by the partial melting of mantle rocks. Basaltic lava is high in iron, magnesium, and calcium but low in potassium and... View Article
Basaltic lava can flow for tens of kilometres from an erupting vent. Basaltic lavas are relatively thin and are very fluid when erupted. Shield... View Article
Basaltic magma is formed by the partial melting of mantle rocks. Basaltic lava is high in iron, magnesium, and calcium but low in potassium and... View Article
No, volcanoes with basaltic lavas are not explosive. They are characterised by low explosivity. They become explosive if somehow water gets into... View Article
Volcanoes with basaltic lava are shield volcanoes. They are the largest of all the volcanoes on the earth. The Hawaiian volcanoes are the most... View Article
Basaltic lava is high in iron, magnesium, and calcium but low in potassium and sodium. It ranges in temperature from about 1000oC to 1200oC. They... View Article
There are three basic types of lave. They are Basaltic: Basaltic lava is high in iron, magnesium, and calcium but low in potassium and sodium.... View Article
Basaltic lavas are relatively thin and are very fluid when erupted. Shield volcanoes have basaltic lava. They are the largest of all the... View Article
Shield volcanoes have basaltic lava. They are the largest of all the volcanoes on the earth. The Hawaiian volcanoes are the most famous examples.... View Article
There are two main types of basaltic lava flows. They are: Pahoehoe (pronounced 'paw-hoey-hoey"): Pahoehoe lava is characterized by a smooth,... View Article
A rift valley is a lowland region that forms where Earth’s tectonic plates move apart or rift. Faulting due to divergence creates the rift... View Article
A rift valley is a lowland region that forms where Earth’s tectonic plates move apart or rift. Faulting due to divergence creates the rift... View Article
The Narmada and the Tapi are the major rivers in India that flow through rift valleys. The Narmada originates on the western flank of the... View Article
Yes, the Dead Sea is part of the Great Rift Valley. The northern part of the system is the Jordan Rift Valley. The Jordan Rift Valley stretches... View Article
The Great Rift Valley is the well known rift valley in the world. It stretches from the Middle East in the north to Mozambique in the south. It... View Article
Physical weathering: Physical weathering is the disintegration of rock by mechanical processes and therefore depends on the application of force.... View Article
