Clarence R. Allen

Clarence Roderic Allen (15 ga Fabrairu, 1925 - 21 ga Janairu, 2021) masanin ilmin ƙasa ne ɗan ƙasar Amurka wanda ya yi karatun kimiyyar girgizar ƙasa .

 Sana'a 
Ya kammala karatunsa a Kwalejin Reed (BA, 1949) da kuma Cibiyar Fasaha ta California (MS, 1951; Ph.D., 1954). 

Allen ya kasance Shugaban Ƙungiyar Girgizar Ƙasa ta Amurka a shekarar 1975  da Ƙungiyar Geological Society of America . Ya kasance memba na Ƙungiyar Ci Gaban Kimiyya ta Amurka, Ƙungiyar Geophysical Union ta Amurka, da Ƙungiyar Geological Society of America. An zaɓe shi a matsayin memba na Kwalejin Fasaha da Kimiyya ta Amurka a shekarar 1975.  Allen memba ne na Kwalejin Kimiyya ta Ƙasa da Kwalejin Injiniya ta Ƙasa tun daga shekarar 1976. 

Allen ya sami lambar yabo ta farko ta GK Gilbert a fannin ilimin ƙasa mai girgizar ƙasa, kuma a shekarar 1995 ya sami lambar yabo ta ƙungiyar nazarin ƙasa mai girgizar ƙasa ta Amurka. 

Ya kasance memba na malaman Cibiyar Fasaha ta California tun 1955.  Ya zama farfesa mai ritaya a can a 1990. "Clarence R. Allen – Caltech: Geological and Planetary Sciences". Archived from the original on September 20, 2012. Retrieved March 13, 2009.

Allan ya rasu a ranar 21 ga Janairu, 2021, yana da shekaru 95. 

 Littattafai 

 "Ilimin Kasa na Girgizar Kasa" tare da Robert S. Yeats da Kerry E. Sieh . Oxford University Press (1997) 
 "Nazarin kwatancen neotectonics na Xianshuihe Fault, China" (1987)
 "Ci gaba da nazarin creep da strain a kudancin California" (1984)
 "Nazarin rarrafe da damuwa a kudancin California: Rahoton fasaha na ƙarshe" (1986)
 "Girgizar Ƙasa ta Yankin Kudancin California, daga 1 ga Janairu 1932 zuwa 31 ga Disamba 1972" tare da John M. Nordquist da James A. Hileman (1973)
 "Rashin aiki a arewacin Turkiyya" (1969)
 "Laifi na Agua Blanca: Babban ginin da ke kan iyaka na arewacin Baja California, Mexico" (1960)

 Manazarta 

Rukuni:Matattun 2021
Rukuni:Haifaffun 1925