What type of volcanic structure results from the accumulation of fluid lava flows?

Shield volcanoes are characterized by their broad, gently sloping sides and result primarily from the accumulation of fluid lava flows. The lava that erupts from shield volcanoes is typically very low in viscosity, which allows it to travel over long distances before cooling and solidifying. This process leads to the formation of extensive, wide landforms that resemble a warrior's shield, hence the name.

When considering the nature of lava flow, it's important to note that the fluidity of the lava is a key factor in creating the smooth, broad outline typical of shield volcanoes, distinguishing them from other volcanic structures such as cinder cone volcanoes, which are built from more viscous lava that tends to pile up around the vent, forming steep slopes. Similarly, volcanic mountains are often formed through more explosive eruptions that lead to the accumulation of various materials, while fault-block mountains are a result of tectonic forces rather than volcanic activity.