Final answer:
Kilauea and Mauna Loa are basaltic, shield volcanoes located in Hawaii, characterized by effusive eruptions and basalt lava flows.
Step-by-step explanation:
Kilauea and Mauna Loa are basaltic, shield volcanoes. These Hawaiian volcanoes are known for their effusive eruptions, where lava flows smoothly from the volcano, creating broad, gently sloping shield shapes rather than steep, explosive mountains. The physical composition of their lava is primarily basalt, which is less viscous than the andesitic or rhyolitic lavas that might be found in composite or explosive volcanoes. Kilauea, in particular, is one of the most active volcanoes in the world and, together with Mauna Loa, is powered by a mantle hot spot beneath the island of Hawaii. The lava from these volcanoes is predominantly composed of basalt, as evidenced by geological samples like the vesicular porphyritic olivine basalt from Kilauea's eruptions.