FN Archimer Export Format PT J TI Volcanics from the Sierra Leone Rise BT AF HEKINIAN, Roger BONTE, P. DUPLEY, P.L. BLANC, P.L. JEHANO, C. LABEYRIE, L. DUPLEYSSIS, J.C. AS 1:;2:;3:;4:;5:;6:;7:; FF 1:;2:;3:;4:;5:;6:;7:; TC 0 UR https://archimer.ifremer.fr/doc/1979/publication-5259.pdf LA English DT Article DE ;Histoire Ifremer AB THE Sierra Leone Rise, located in the east equatorial Atlantic, forms a discontinuous chain of seamounts as shallow as 2 km extending with a general NE-SW trend from near the Sierra Leone Coast of Africa, to the St Paul fracture zone near the Mid-Atlantic Ridge (Fig. 1). The origin of this feature has remained a topic of discussion. Sheridan et al. have hypothesised that the Sierra Leone Rise is a volcanic structure formed at the beginning of the opening of the Atlantic in the early Cretaceous period. [NOT CONTROLLED OCR] PY 1979 PD DEC SO Nature PU Macmillan Journals VL 257 IS 5680 BP 536 EP 538 ID 5259 ER EF