@misc{misc05e73846, title = {40'AR' - 39'AR' ages and duration of magmatism associated with the break-up of the south atlantic}, author = {Kelley, S P and Turner, S P and Stewart, K A and Kirstein, L and Hawkesworth, C J and Keynes, M and Mantovani, Marta Silvia Maria}, year = {1995}, booktitle = {Fall Meeting American Geophysical Union} }