RT Journal Article
SR Electronic
T1 Seismic studies in the North Celtic Sea Basin: implications for basin development
JF Journal of the Geological Society
JO Journal of the Geological Society
FD Geological Society of London
SP 191
OP 195
DO 10.1144/gsjgs.148.1.0191
VO 148
IS 1
A1 O’REILLY, B. M.
A1 SHANNON, P. M.
A1 VOGT, U.
YR 1991
UL http://jgs.lyellcollection.org/content/148/1/191.abstract
AB Modelling of seismic refraction data from the North Celtic Sea Basin offshore Ireland demonstrates the presence of a NNW-trending basement flexure. Mesozoic sediments are 4 km thick on the west and 6 km thick on the east of the feature, which is Interpreted as a transfer fault zone lying along a major reactivated basement fracture. Bulk extension is greater in the lower lithosphere than in the upper crust, with the interface being a rheologically regulated mid-crustal detachment surface. The basin developed in response to the interplay between periodic disengagement along the detachment and selective strain transfer into the upper crust.