The faunal richness of headwater streams: progress report for the period January - June 1991

[摘要] This description of the engineering geology of the district around Exeter is based on the lithostratigraphical units (Table 1) identified during the remapping of the district (Fig. 1 1:50 000 geological map sheet 325) by the field geologists of the British Geological Survey (Bristow et al 1985) and a geotechnical database compiled by the Engineering Geology Group of the BGS.

[发布机构] National Rivers Authority