What is the relation between acid lava and cone volcanoes?

Acid lava is much less flowy. It is sticky and more solid. Hence they produce much steeper volcanos. Less acid lava is almost like yoghurt. It is rather liquid till it cools. So this produces the shield type. read more

Acid lava comes from composite cone volcanoes, is slow moving and viscous. Basic lava comes from shield volcanoes, is runny and flows faster. Acidic lava is felsic, or high in quartz and potassium feldspars. Basic lava is mafic, and higher in plagioclase feldspar. read more

The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava. A pyroclastic flow is a superheated mixture of hot steam, ash, rock and dust. A pyroclastic flow can travel down the side of a volcano at very high speeds with temperatures over 400 degrees celsius. read more