Louis H. Ahrens

**Louis Herman Ahrens** (24 Eprel 1918  5 Septemba 1990) bụ onye South Africa a mụrụ geochemist, agụmakwụkwọ, na onye edemede.   A maara ya nke ọma maka ọrụ ya na 1950s n'ịmepụta usoro iji rubidium-strontium dating dị ka ụzọ nke geochronology.

## Oge ọ malitere
A mụrụ Louis Ahrens na Pietermaritzburg, South Africa n'ọnwa Eprel afọ 1918 ma bụrụkwa nwa ndị ozi ala ọzọ Lutheran na mba ahụ.  bụ nwa F.W. Ahrens, onye majie distrikti ma soro nna ya gaa South Africa na South-West Africa. 'ịbụ onye na-enwetaghị akara ugo mmụta, ọ gara Mahadum Natal wee gụsịrị akwụkwọ na nzere Bachelor of Science na geology na chemistry na 1939.  :: 816  Ọ ga-amalite ọrụ ya na Johannesburg na 1940 na National Institute of Metallurgy (n'oge ahụ Government Metallurgical Laboratory) dị ka onye na-enyocha kemịkal na-ekwusi ike na nyocha anya. 'oge a, ọ rụrụ ọrụ na thesis doctorate ya na nyocha nke chemistry spectrochemical nke e nyere na 1944 site na Mahadum Pretoria .  'afọ 1945, ọ ghọrọ onye isi na-ahụ maka kemịkalụ na Government Metallurgical Laboratory . [1]

## Ọrụ agụmakwụkwọ
N'afọ 1946, e nyere ya post doctoral research fellowship site na Council for Scientific and Industrial Research (CSIR) wee gaa mba ofesi na mbụ na-eleta ụlọ nyocha nke Cambridge, Oxford na Durham na mgbe ahụ iji mee nyocha na Massachusetts Institute of Technology's Cabot Spectagraphic Laboratory . :: 816  N'afọ 1949, o bipụtara akwụkwọ na Bulletin of the Geological Society of America nke guzobere usoro nke iji Rubidium-strontium dating dị ka ụzọ dị irè nke geochronology. N'afọ 1950, mgbe mkpakọrịta ya gwụsịrị, ọ nwetara ọkwa nke Associate Professor of Geochemistry . :: 816   N'afọ 1951, Ahrens bipụtara akwụkwọ banyere omume nke silicate ntụ na d.c arcs.[3]

 kwagara Mahadum Oxford, England na 1954 wee nweta ọnọdụ dị ka onye na-agụ akwụkwọ na mineralogy ma nyere Lawrence Wager aka imeziwanye nyocha nke geochemical na geochronological nke mahadum ahụ. 'ebe ahụ, o mepụtara tebụl ọhụrụ nke radii ion.

'afọ 1956, Ahrens laghachiri South Africa na-ewere oche na kemịkalụ na Mahadum Cape Town ma mepụta ngalaba nke geochemistry dị ka ngalaba dị iche na geology site na 1961 wee ghọọ prọfesọ ya nke geochistry.  lara ezumike nká na mahadum na 1978 n'ihi ọrịa mana ọ gara n'ihu na ọrụ dị ka onye nchọpụta pụrụ iche ruo 1983.  bụ prọfesọ nleta nke Geochemistry site na 1962 ruo 1963 na MIT na prọfesụ nleta na Mahadum Göttingen na 1961.:: 819  Ọ ga-ebipụta akwụkwọ anọ ma dee ma soro dee ihe karịrị narị akwụkwọ nyocha abụọ.

'oge mmemme Apollo, Ahrens na ndị otu nyocha ya na Mahadum Cape Town natara ihe nlele nkume ọnwa maka nyocha geochemical. Nke  bụ n'ihi ọrụ o mere na nyocha nke meteorites na 1950s.  [2]

## Alụmdi na nwunye
Ahrens lụrụ Evelyn Millicent McCulloch na 1941.  nwere ụmụ atọ, Yolanda, Wendy na Ian . : 819 

## Ọnwụ
Ahrens nwụrụ na Cape Town, South Africa na Septemba 1990. 

## Nsọpụrụ

* Captain Scott Memorial Medal - nwa akwụkwọ nsọpụrụ kachasị mma, Geological Society of South Africa (c.1939) 
* Jubilee Gold Medal - usoro strontium nke ikpebi afọ, Geological Society of South Africa (1948) 
* *Fellow Royal Institute of Chemistry* (1948) 
* Fellow American Association for the Advancement of Science (1950) 
* Third Mineralogical Society of America Award - maka enyemaka na nyocha nke oge ala, Mineralogic Society of America (1953)  
*  nrite South Africa - South African Association for the Advancement of Science (1971) [1]
*  isi oche nke abụọ nke International Association of Geochemistry and Cosmochemistry (1972-1975) [1]
*  uru - nyocha na ihe nlele nkume ọnwa, NASA (1980) [1]

## Edensibia