1. Crosta A.P., Vasconcelos M.A.R. (2013) Update on the current knowledge of the Brazilian impact craters // 44th Lunar and Planetary Science Conference.
2. Monika Kumlehn de Mamani & Ingrid Grambow IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.(2010)

Tefe is a buried circular structure in the Solimoes Basin in northern Brazil, identified during oil exploration surveys using seismic methods. It has a diameter of 15 km, with a central elevation 4 km wide, and shows all the morphological features of an impact crater. Tertiary sedimentary strata 350 m thick were deposited after the formation of the structure. It was formed in Cretaceous-Paleozoic sedimentary rocks and the deformation seems to reach the basement at a depth of at least 3.2 km (Crosta A.P., Vasconcelos M.A.R., 2013).

Рельеф из Wikimapia.

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