Ted Ringwood

Alfred Edward "Ted" Ringwood FRS FAA (19 Afrilu 1930 - 12 Nuwamba 1993) ƙwararren masanin kimiyyar ƙasa ne kuma masanin kimiyyar ƙasa na Australiya, kuma a shekarar 1988 ya sami lambar yabo ta Wollaston.  

An sanya wa wannan ma'adinai suna ne saboda sunansa.

 Rayuwar farko da karatu 
An haifi Ringwood a Kew, ɗa ɗaya tilo ga Alfred Edward Ringwood. Ya halarci Makarantar Jihar Hawthorn ta Yamma inda ya buga wasan kurket da ƙwallon ƙafa ta Dokokin Australiya . A shekarar 1943 ya yi nasarar samun tallafin karatu a Makarantar Grammar Geelong inda ya yi karatu. Bayan kammala karatunsa, ya yi karatun digiri na kimiyya a fannin Geology a Jami'ar Melbourne inda ya sami tallafin karatu na gwamnatin Commonwealth, kuma an ba shi tallafin karatu na zama a Kwalejin Trinity . Ya wakilci kwalejin da jami'a a fannin ƙwallon ƙafa. Ya sami digiri na farko a fannin Geology kuma ya fara digiri na biyu a fannin taswirar filin da kuma nazarin man fetur na aman wutar lantarki na Kogin Devonian Snowy da ke arewa maso gabashin Victoria, inda ya kammala karatunsa da girmamawa a shekarar 1953. Daga nan Ringwood ya yi digiri na uku, inda ya fara nazarin gwaji game da asalin ma'adinan ƙarfe, amma daga baya ya canza batun bincikensa don amfani da ilimin geochemistry don fahimtar tsarin Duniya, musamman tsarin ma'adinai na mannewar Duniya.D.H. Green (1998). "Alfred Edward Ringwood 1930–1993". Historical Records of Australian Science. 12 (2): 247. doi:10.1071/HR9981220247. Retrieved 20 December 2012.

 Jamusate da kuma duniyarmu 
A ƙarshen shekarun 1950 da 1960, Ringwood ya yi aiki a kan germanates. Ya gano cewa suna aiki a matsayin ƙarancin matsin lamba kamar silicates masu matsin lamba. Da wannan fahimtar, ya sami damar yin hasashen cewa canje-canjen lokaci na ma'adanai olivine da pyroxene za su faru a Yankin Canji. A Jami'ar Ƙasa ta Australiya, ya fara nazarin silicates a babban matsin lamba, kuma a shekarar 1959 ya nuna cewa ƙarfen olivine ya canza zuwa tsarin spinel mai yawa, kamar yadda aka yi amfani da mafita masu ƙarfi da yawa na germanate da germanate-silicate. A shekarar 1966, Ringwood da Alan Major, jami'in fasaha wanda ya yi aiki tare da shi daga 1964 zuwa 1993, sun haɗa nau'in spinel na , Haka kuma a shekarar 1966, an cimma canjin forsterite mai tsarki ( Mg2SiO4 ) zuwa yanayin spinel.

A shekarar 1969, an gano wani sabon ma'adinai a cikin gutsuttsuran meteorite na Tenham wanda ke da tsarin lu'ulu'u iri ɗaya da polymorph mai matsin lamba na olivine. Wannan shine karo na farko da aka gano polymorph da Ringwood ya annabta a yanayi. Don girmama mahimmancin aikin Ringwood, an sanya wa ma'adinan suna ringwoodite. Wata ƙungiya daga Jami'ar Alberta ta ware ringwoodite na ƙasa a cikin samfurin lu'ulu'u mai launin ruwan kasa da aka samo a Brazil a 2008. Bincikensu ya nuna cewa akwai ruwa a cikin rufin Duniya.

 Manazarta 

Rukuni:Mutuwan 1993
Rukuni:Haifaffun 1930