Table 3.

Comparison of basic hydrogeochemical data from deep boreholes in Permo-Triassic basins of the UK.

BoreholeBasinTotal depthFormationTemp.TDSδ18Oδ2H
(m bgl)(°C)(g l-1)(‰)(‰)
Larne No. 2N. Ireland2880Permian40198−3.2−19
BallymacilroyN. Ireland1981Triassic62110−7.3−47
BallymacilroyN. IrelandPermian78117−7.5−46
CleethorpesE. Yorks & Lincs2100Triassic5380−6.6−46
CleethorpesE. Yorks & LincsPermian64230−0.3−5
KempseyWorcester2310Triassic326−7.9−53
KempseyWorcesterPermian6322−7.4−50
MarchwoodWessex2617Triassic73103−3.1−29
W EsplanadeWessex1827Triassic76125−2.1−26

TDS, total dissolved solids. Data from Edmunds (1986) and Darling et al. (1997).