An example of this action can be seen in the Hawaiian Island chain. Check them out here. Ideas and opinions expressed on this site are those of the authors and commenters alone.
City of Troy. Shield volcanos rarely erupt explosively. The volcanos of the Hawaiian islands and the newly-discovered Tamu Massif are examples of shield volcanos here on Earth. William Bassett on Sol 2252-2253: This inactive behemoth, which has been quiet for 140 million years, is a thousand miles east of Japan, rises 2 miles up from the ocean floor and has a base about 400 miles wide.
Shield volcanos on Earth often form over "hotspots. All Rights Reserved. Home Authors Contact. Unlike Earth, however, Mars doesn't have mobile tectonic plates.
Wiped clean-forever. That makes it 3 times the height of Mt. Scientists aren't exactly sure what causes a hotspot, but the heat melts the rock to create a magma chamber under the volcano. May still be active and erupt again at a future date.
Onwards to Midland Valley Sols 2318-2319: This distributes the total volume of lava among many volcanoes rather than one large volcano. Currently, the hotspot is under the Big Island of Hawaii where the active volcano Mauna Loa sits today.
Not Easy to See. Note that the horizontal scale is drastically squashed.
This may have allowed lava to pile up more quickly than it does on Earth, creating a higher mountain. Since these flows are geologically young, it may indicate that the volcano is still active. To compare, the largest volcano on Earth is Mauna Loa.