Alfonso Basin, Gulf of California, Mexico
Reference
Perez-Cruz, L. 2006. Climate and ocean variability during the middle and late Holocene recorded in laminated sediments from Alfonso Basin, Gulf of California, Mexico. Quaternary Research 65: 401-410.
Reference
Perez-Cruz, L. 2006. Climate and ocean variability during the middle and late Holocene recorded in laminated sediments from Alfonso Basin, Gulf of California, Mexico. Quaternary Research 65: 401-410.
Description
Working with a laminated sediment core recovered from the Alfonso Basin in the Bay of La Paz (24°38.12'N, 110°33.24'W), the author studied the population history of the "equatorial" radiolarian Tetrapyle octacantha, which "is closely associated with warm subtropical and equatorial waters." This effort revealed, in the words of Perez-Cruz, that "two conspicuous intervals at AD ~910 and 1000 may be correlated to the 'Medieval Warm Period' ... that is consistent with the global pattern."