Geology of Anguilla

The geology of Anguilla consists of Lesser Antilles island arc volcanic rocks overlain by Oligocene, Miocene and Pliocene reef limestone.[1] Older tuff and basalt outcrops in only two places on the island, which are tilted. During the Pliocene and Pleistocene, the underlying Anguilla Bank likely connected Saint Bartholomew and Saint Martin as one island.[2]

References

1. Budd, A. F.; Johnson, K. G.; Edwards, J. C. (1995). "Caribbean reef coral diversity during the early to middle Miocene: an example from the Anguilla Formation". Coral Reefs. 14 (2): 109–117. Bibcode:1995CorRe..14..109B. doi:10.1007/BF00303432. S2CID 22827668.
2. Christman, Robert A. (1953). "Geology of St. Bartholomew, St. Martin, and Anguilla, Lesser Antilles | GSA Bulletin". Geological Society of America Bulletin. 64: 85. doi:10.1130/0016-7606(1953)64[85:GOSBSM]2.0.CO;2. Retrieved 2018-11-09.