Sedimentology Branch, BP Exploration Co., Ltd., Britannic House, Moor Lane, London EC2Y 9BU.
The strontium isotopic composition and origin of burial cements in the Lincolnshire Limestone (Bajocian) of central Lincolnshire, England
Article first published online: 14 JUN 2006
Volume 34, Issue 5, pages 795–806, October 1987
How to Cite
EMERY, D., DICKSON, J. A. D. and SMALLEY, P. C. (1987), The strontium isotopic composition and origin of burial cements in the Lincolnshire Limestone (Bajocian) of central Lincolnshire, England. Sedimentology, 34: 795–806. doi: 10.1111/j.1365-3091.1987.tb00803.x
- Issue published online: 14 JUN 2006
- Article first published online: 14 JUN 2006
- Received 7 July 1986 Revised 20 November 1986
Strontium isotopic composition (87Sr/86Sr) of two petrographically, chemically and isotopically (δ18O and δ13C) distinct phases of burial calcites from the Lincolnshire Limestone are indistinguishable (0.70820± 26). The mean 87Sr/86Sr ratio of these phases is considerably more radiogenic than 87Sr/86Sr ratios of Bajocian marine waters (∼0.70725). Neither Bajocian marine waters nor meteoric waters buffered by host marine carbonate in the Limestone could have precipitated the burial spars. Radiogenic strontium may have been contributed from K-feldspar dissolution and/or clay recrystallization, either within clastic portions of the Limestone itself, or from major clastic units adjacent to the Limestone. Alternatively, Palaeozoic marine waters or remobilized Palaeozoic marine carbonate and/or sulphate could have supplied the necessary radiogenic strontium.