Geological notes and local details for 1:10 000 sheet SP 11 NW (Farmington) : part of 1:50,000 sheets 217 (Moreton-in-Marsh) and 235 (Cirencester)

This account describes the geology of 1:lO 000 Sheet SP 11 NW (Farmington). The area falls largely within 150 000 Geological Sheet 235 (Cirencester), although the northenmost srtip (about lOOm wide) forms part of Sheet 217 (Moreton-in-Marsh). The first geological survey of the area was undertaken by E Hull during the 1850s; it was published as part of Old Series One-Inch Geological Sheet 44 in 1856, and described by Hull (1857). This survey was re-issued with minor amendments as New Series One-Inch Geological Sheets 217 and 235, published in 1929 and 1933, respectively. For the Farmington area, the only change from Hull’s original survey was the addition of alluvium and some outcrops of Chipping Norton Limestone by H G Dines. The geology of sheets 217 and 235 is described in memoirs by Richardson (1929; 1933); these are based on the work of Hull, supplemented by additional data such as quarry sections.