John Strachey FRS (10 May 1671 – 11 June 1743) was a British

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...

and

topographer Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary scie ...

. He was born in

Chew Magna Chew Magna is a village and civil parish within the Chew Valley in the Unitary authorities of England, unitary authority of Bath and North East Somerset, in the Ceremonial counties of England, ceremonial county of Somerset, England. The parish ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. He inherited estates including

Sutton Court Sutton Court is an English house remodelled by Thomas Henry Wyatt in the 1850s from a manor house built in the 15th and 16th centuries around a 14th-century fortified pele tower and surrounding buildings. The house has been designated as Grad ...

from his father at three years of age. He matriculated at

Trinity College, Oxford (That which you wish to be secret, tell to nobody) , named_for = The Holy Trinity , established = , sister_college = Churchill College, Cambridge , president = Dame Hilary Boulding , location = Broad Street, Oxford OX1 3BH , coordinates ...

and was admitted at

Middle Temple The Honourable Society of the Middle Temple, commonly known simply as Middle Temple, is one of the four Inns of Court exclusively entitled to call their members to the English Bar as barristers, the others being the Inner Temple, Gray's Inn an ...

, London, in 1688. He was elected a

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...

in 1719. He introduced a theory of rock formations known as

Stratum In geology and related fields, a stratum ( : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as ei ...

, based on a pictorial cross-section of the geology under his estate at

Bishop Sutton Bishop Sutton () is a village on the northern slopes of the Mendip Hills, within the affluent Chew Valley in Somerset. It lies east of Chew Valley Lake and north east of the Mendip Hills, approximately ten miles south of Bristol on the A368, ...

and Stowey in the

Chew Valley The Chew Valley is an affluent area in North Somerset, England, named after the River Chew, which rises at Chewton Mendip, and joins the River Avon at Keynsham. Technically, the area of the valley is bounded by the water catchment area of t ...

and coal seams in nearby coal works of the Somerset coalfield, projecting them according to their measured thicknesses and attitudes into unknown areas between the coal workings. The purpose was to enhance the value of his grant of a coal-lease on parts of his estate. This work was later developed by William Smith. In addition to his map making and geological interests he had several other publications including ''An Alphabetical List of the Religious Houses in Somersetshire (1731)''. He died in

Greenwich Greenwich ( , ,) is a town in south-east London, England, within the ceremonial county of Greater London. It is situated east-southeast of Charing Cross. Greenwich is notable for its maritime history and for giving its name to the Greenwich ...

, London. He had married twice; firstly Elizabeth Elletson, with whom he had 18 children (see picture of 8 of them) and secondly Christina Staveley, with whom he had a further one child.

Homage

Strachey Stump, a flat-topped mountain in Antarctica, is named after him.

References

1671 births 1743 deaths British geologists People from Bath and North East Somerset John (geologist) Fellows of the Royal Society English male writers {{England-painter-stub