Alfred Harker

Alfred Harker FRS^[1] (19 February 1859 – 28 July 1939) was an English geologist who specialised in petrology and interpretive petrography. He worked for the Geological Survey of Scotland and conducted extensive surveying and geological studies of western Scotland and the Isle of Skye. He and other British geologists pioneered the use of thin sections and the petrographic microscope in interpretive petrology.

Education and career

Harker's father was the Yorkshire corn merchant Portas Hewart Harker, his mother Ellen Mary Harker. He attended Hull and East Riding College, and the private Clewer House School (Windsor) before enrolling as an undergraduate at St. John's College (Cambridge) from where he graduated with an M.A. on 18 January 1882.^[2] Whilst at Cambridge he was an early member of the Sedgwick Club.^[3] In 1884 he held the post of Demonstrator in the Geology Department under Thomas McKenny Hughes (whom he regarded his mentor), as Lecturer at Newnham College in 1892 at St. Johns College, as University Lecturer in 1904, and as Reader in Petrology in 1918.

Harker's duties included teaching Mineralogy and Petrology to students. Harker was elected as a College Fellow of St. John's in 1885. A geological tour of Western Europe in 1887 introduced him to the metamorphic rocks of the Ardennes which proved to be an influential experience to his continuing research. Harker accompanied Professor Thomas McKenny Hughes to the United States in 1891 where they attended the 5th International Geological Congress. This was the first time the event had been held outside of Europe.

Fieldwork and research

In 1895, Harker commenced employment with the Geological Survey of Great Britain on a part-time basis. Professor McKenny-Hughes had also worked with the Survey, but Harker's invitation came from the then Director General, Archibald Geikie. This was to assist in the mapping and determination of the igneous rocks of the Isle of Skye and the small Isles. This association lasted some 10 years or so. At this time, he also became a Member of the Scottish Mountaineering Club.

Harker’s active fieldwork programme also saw him collaborating with Professor John Edward Marr of the Department of Geology on the volcanic rocks of the Lake District in 1889. The Sedgwick Museum of Earth Sciences opened in 1904 and three years later, Harker published research on material he had prepared petrological rock slices of. He named the petrological samples brought back by Charles Darwin as the 'Beagle Collection of Rocks'.

Later years

Harker retired in 1931 and St. John's College made him a Life Fellow soon after his retirement. He died in 1939. A book illustrating the geology and landscapes of the Western Isles of Scotland was published post-humously. Many of the illustrations in this work were based on drawings he made in his numerous field notebooks.

Honors and awards

He was elected a Fellow of the Royal Society (FRS) in June 1902,^[4] and received their Royal Medal in 1935. In 1907 he was awarded the Murchison Medal, and in 1922 the Wollaston medal, both by the Geological Society of London, to which he had served as president from 1916–1918.^[1] The University of Edinburgh awarded him with an honorary doctoral degree in law in 1919. Harker Glacier on South Georgia Island,^[5] Mount Harker in Antarctica,^[5] and Dorsa Harker,^[6] a feature on the Moon, are named after him. The mineral harkerite, first found on the Isle of Skye, is named after him. After his retirement, he was given the post of honorary curator of the Cambridge Petrological Museum, and their extensive rock collection bears his name. Two lecture rooms are named after him in the Department of Earth Sciences, University of Cambridge.

Works

Petrology for Students, 1895, Cambridge University Press
The Tertiary Igneous Rocks of Skye, 1904, Geological Survey of Scotland Memoir
The Natural History of Igneous Rocks, 1909, Macmillan

References

1 2 Seward, A. C.; Tilley, C. E. (1940). "Alfred Harker. 1859-1939". Obituary Notices of Fellows of the Royal Society. 3 (8): 196. doi:10.1098/rsbm.1940.0017.
↑ "Harker, Alfred (HRKR878A)". A Cambridge Alumni Database. University of Cambridge.
↑ "The Sedgwick Club". sedgwickclub.soc.srcf.net. Retrieved 2016-04-06.
↑ "Court Circular". The Times (36787). London. 6 June 1902. p. 10.
1 2 United States Geological Survey (2002). "Feature Name: Harker". United States Geological Survey, United States Department of the Interior. Retrieved 10 May 2007.
↑ United States Geological Survey (2007). "Moon: Dorsa Harker". Gazetteer of Planetary Nomenclature Feature Information. Retrieved 20 June 2007.
↑ "Sedgwick Museum of Earth Sciences – Welcome". Sedgwickmuseum.org. Retrieved 10 December 2012.
↑ "gb590-hrkr – The papers of Alfred Harker". Archives Hub. 9 March 2011. Retrieved 10 December 2012.

Bibliography

Young, Davis A., (2003) Mind Over Magma: The Story of Igneous Petrology, Princeton University Press. ISBN 0-691-10279-1
Bragg, William (1939) Address of the President Sir William Bragg, O.M., at the Anniversary Meeting, 30 November 1939, Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences 173(954):286–312 (18 December 1939). Obituary pp. 294–295.

Presidents of the Geological Society of London

19th century	George Bellas Greenough Henry Grey Bennet William Blake John MacCulloch George Bellas Greenough Earl Compton William Babington William Buckland John Bostock William Fitton Adam Sedgwick Roderick Murchison George Bellas Greenough Charles Lyell William Whewell William Buckland Roderick Murchison Henry Warburton Leonard Horner Henry De la Beche Charles Lyell William Hopkins Edward Forbes William Hamilton Daniel Sharpe Joseph Ellison Portlock John Phillips Leonard Horner Andrew Crombie Ramsay William Hamilton Warington Wilkinson Smyth Thomas Henry Huxley Joseph Prestwich George Douglas Campbell John Evans Peter Martin Duncan Henry Clifton Sorby Robert Etheridge John Whitaker Hulke Thomas Bonney John Wesley Judd William Blanford Archibald Geikie Wilfred Hudleston Henry Woodward Henry Hicks William Whitaker

20th century	Jethro Teall Charles Lapworth John Marr Archibald Geikie William Sollas William Watts Aubrey Strahan Arthur Smith Woodward Alfred Harker George Lamplugh Richard Oldham Albert Seward John Evans Francis Bather John Gregory Edmund Garwood Thomas Holland John Green Owen Thomas Jones Henry Hurd Swinnerton Percy Boswell Herbert Leader Hawkins William Fearnsides Arthur Trueman Herbert Harold Read Cecil Tilley Owen Thomas Jones George Lees William King Walter Campbell Smith Leonard Hawkes James Stubblefield Sydney Hollingworth Oliver Bulman Frederick Shotton Kingsley Dunham Thomas Neville George William Alexander Deer Thomas Westoll Percy Kent Wallace Pitcher Percival Allen Howel Francis Janet Watson Charles Holland Bernard Leake Derek Blundell Anthony Harris Charles Curtis R. S. J. Sparks Richard Hardman Robin Cocks

21st century	Ronald Oxburgh Mark Moody-Stuart Peter Styles Richard Fortey Lynne Frostick

Authority control	WorldCat Identities VIAF: 10598458 LCCN: n85805672 ISNI: 0000 0000 8090 3138 GND: 116476206 SUDOC: 076319482

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