Louis Caryl Graton
Louis Caryl Graton (* 10. June 1880 in Parma (New York) , Monroe County (New York) ; † 22. July 1970 in New Haven (Connecticut) ) was an American deposits - geologist and mineralogist .
Life
Graton went to school in New York State and studied from 1896 natural sciences and especially geology and mineralogy at Cornell University with a bachelor's degree in 1900. He was then teaching assistant for chemistry at McGill University, where he dealt particularly with deposits in Ontario. In 1902 he returned to Cornell University and successfully completed the graduate program, but left the university before graduation (only the dissertation was missing) in 1903 and went to the US Geological Survey (USGS). There he dealt with deposits, initially the gold fields of Cripple Creek in Colorado as assistant to Waldemar Lindgren . He also worked in the southern Appalachians, Arizona, and California and wrote the regular reports on copper mining and a report on copper in the United States. In 1909 he left the USGS and became director of the newly formed Copper Producers Association in New York. In 1909 he became an instructor, 1910 assistant professor and 1912 professor of mining geology at Harvard University , but continued to work part-time for the Copper Producers Association for a while. In 1913 he was director of a comprehensive study of the US copper inventories and 1917 to 1919 he was secretary of the Committee of the copper producer to the war effort of the United States in the First World War . He then set up an influential school for reservoir geology at Harvard. In 1949 he retired from Harvard. Then he moved to New Haven.
He trained many deposit geologists for the mining industry in the USA and did a great deal at the beginning of the 20th century to ensure that American mining companies even hired geologists. As a deposit geologist, he represented the hydrothermal origin of ore deposits. He traveled to all major mining zones on earth to study deposits and also hydrothermally active areas to study the formation of deposits. At Harvard, he also worked on improving various laboratory devices for examining minerals and ores (grinding machines, micro-drills, cameras, devices for hardness testing, etc.) and worked on their development.
Graton advised many mining companies. From 1920 to 1950 he advised the mining group Cerro Corporation, which was particularly active in Peru (Cerro de Pasco), and from 1945 to 1967 he was on its board of directors. On his advice, a 7-mile tunnel (for transport, ventilation, drainage), then the longest tunnel in mining (Graton Tunnel), was dug 1000 feet under the existing mine in the Casapalca mine from 1961 to 1969.
He was married twice and had a son and daughter from his first marriage.
Honors
In 1914 Graton was elected to the American Academy of Arts and Sciences . In 1931 he became president of the Society of Economic Geologists. In 1950 he received the Penrose Gold Medal . He was an honorary doctorate from Berkeley.
The lead mineral gratonite from Cerro de Pasco was named in his honor in 1940.
Fonts
- Nature of the ore forming fluid, Economic Geology, Volume 35, 1940, pp. 197-358.
literature
- Ore deposits of the world 1933–1967, American Institute of Mining, Metallurgical and Petroleum Engineers 1968 (commemorative publication in his honor and those of Reno H. Sales ) (with list of publications)
- CS Hurlbut, Obituary in American Mineralogist, Volume 57, 1972, 638-643, PDF
Individual evidence
- ↑ In 1930 he submitted his work Hydrothermal Origin of the Rand Gold Deposits for a late doctorate.
| personal data | |
|---|---|
| SURNAME | Graton, Louis Caryl |
| BRIEF DESCRIPTION | American reservoir geologist and mineralogist |
| DATE OF BIRTH | June 10, 1880 |
| PLACE OF BIRTH | Parma (New York) , Monroe County (New York) |
| DATE OF DEATH | July 22, 1970 |
| Place of death | New Haven (Connecticut) |