Geology of Madagascar

protected area in northern Madagascar

stratigraphic unit in sub-Saharan Africa

thumb|Active lavaka on right, with inactive, largely infilled older lavakas to left Lavaka (), the Malagasy word for "hole", usually found on the side of a hill, is a type of erosional feature common in Madagascar. However, Lavaka have also been found in South Africa, the Democratic Republic of the Congo, and South Carolina, and similar landforms have been found in Brazil, the Great Plains of the United States, and Eswatini. They are most common in tropical regions between the Cancer and Capricorn latitudes, especially the Central Highlands of Madagascar, where approximately one metre thick la

Overview of the Geology of Madagascar