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.