Cetacean strandings in Ghana artisanal fishing boats and are towed to port. The Vridi specimen was harpooned for research purposes. A single skeletal specimen was known for Ghana and was probably collected in 1956. Killer whales are present in Gulf of Guinea waters although population size is not considered in great numbers. A killer whale was harpooned some 15-20 nm south of Abidjan in 1958 but the animal sank. This shows that killer whales are present in the West African marine waters. Observers on industrial tuna purse-seiners reported a few sightings off the coast of Liberia, Ivory Coast and Ghana. The first record in
Geology of Liberia Geology of Liberia The geology of Liberia is largely extremely ancient rock formed between 3.5 billion and 541 million years ago in the Archean and the Neoproterozoic, with some rocks from the past 145 million years near the coast. The country has rich iron resources as well as some diamonds, gold and other minerals in ancient sediment formations weathered to higher concentrations by tropical rainfall. Two billion to 1.6 billion year old Archean and Paleoproterozoic underlie 90% of Liberia, forming the Man Shield, part of the West African Craton—a region of stable continental crust leftover from early continent formation. The