PASSEQ - Recognition of the lithosphere-asthenosphere system in the transition between Proterozoic and Phanerozoic Europe

Abstract

Loan 814 provided 10 broadband seismometers which were deployed along a profile as part of a multinational project to investigate the structure of the Trans European Suture Zone (TESZ). The instruments recorded continuously for a period of up to 18 months. Teleseismic arrivals from 81 events Mb > 6.5 have been used to calculate Receiver Functions which show an increase in crustal thickness from c. 30 km beneath the Early Palaeozoic mobile belts of western Europe to c. 45 km thick crust beneath the East European Craton. These results are broadly consistent with modelling and interpretation of existing wide-angle/refraction data. The UK data will be integrated with a larger dataset recorded on 39 broadband sensors and 139 short period instruments across the TESZ when this becomes available.