@misc{indiciae573e9f4c3c97, title = {Composition of basalts from the Mid-Atlantic Ridge}, author = {A.E.J. Engel and C.G. Engel}, year = {1964}, doi = {10.1126/science.144.3624.1330}, url = {https://pubs.usgs.gov/publication/70010817}, note = {Source identifier: 70010817} }