Ocean mixing and ice-sheet control of seawater 234 U/ 238 U during the last deglaciation | Zendy

Tianyu Chen | Zendy; Laura F. Robinson | Zendy; Matthew P. Beasley | Zendy; Louis M. Claxton | Zendy; Morten B. Andersen | Zendy; Lauren Gregoire | Zendy; Jemma L. Wadham | Zendy; Daniel J. Fornari | Zendy; K. S. Harpp | Zendy

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Ocean mixing and ice-sheet control of seawater ²³⁴ U/ ²³⁸ U during the last deglaciation

Author(s) -

Tianyu Chen,

Laura F. Robinson,

Matthew P. Beasley,

Louis M. Claxton,

Morten B. Andersen,

Lauren Gregoire,

Jemma L. Wadham,

Daniel J. Fornari,

K. S. Harpp

Publication year - 2016

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.aag1015

Subject(s) - deglaciation , oceanography , geology , seawater , ice sheet , deep sea , holocene

Uranium in the deep sea The ratio of234 U to238 U in seawater underlies modern marine uranium-thorium geochronology, but it is difficult to establish the ratio precisely. Chenet al. report two234 U/238 U records derived from deep-sea corals (see the Perspective by Yokoyama and Esat). The records reveal a number of important similarities to and differences from existing records of the past 30,000 years. Higher values during the most recent 10,000 years than during earlier glaciated conditions may reflect enhanced subglacial melting during deglaciation.Science , this issue p.626 ; see also p.550

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