geologist mineralogist. Jakob Johannes Sederholm was a Finnish petrologist most associated with his studies of migmatites. Education. Troubled by illness throughout his life, Sederholm originally chose to study geology to allow him to work outdoors. Career. J. J. Sederholm. Jakob Johannes (Hannes) Sederholm (20. heinäkuuta 1863 Helsinki - 26. kesäkuuta 1934 Helsinki) oli suomalainen geologi ja petrologi, joka tutki erityisesti migmatiittejä eli seoskiviä. Hän toimi Geologisen toimikunnan johtaja vuosina 1893-1933. Perhaps the best way to describe the person Jakob Johannes Sederholm is to use the Indian name he was given when he became honorary chief of the Winnebago tribe in North America: Inni-Pingah, the Good Mountain. Jakob, Johannes "J.J." Sederholm was born on month day 1863, in birth place, to Claes Theodor Sederholm and Maria Kristina Sofia Sederholm. Claes was born on January 9 1832, in Saaris gård, Mäntsälä, Finland. Maria was born on August 7 1834. Jakob had 4 siblings: Alfhild Johanna Sederholm and 3 other siblings. Sederholm, Bicester, Oxfordshire. 5,734 likes · 44 talking about this · 83 were here. Exclusive Distributors for Frederic Butet Saddles & Dy'on LeatherworkJakob Johannes Sederholm (born July 20, 1863, Helsinki, Fin., Russian Empire—died June 26, 1934, Helsinki) geologist who pioneered in the study of the Precambrian rocks (those from 3.96 billion to 570 million years old) of Finland. Jakob Johannes Sederholm (1863-1934) was one of the more influential pioneers in Precambrian geology having introduced some fundamental insights and concepts which are still relevant today. These issues are dealt with in publications that continue to be cited, for example his paper on the sediments in the Tampere region (Sederholm, 1897), the first paper that described migmatites (Sederholm, 1907) and the subsequent studies of migmatites and related rocks in southern Finland (Sederholm, 1923, Sederholm, 1926, Sederholm |jqa| wrw| ivz| ygq| hsy| gth| ouy| jou| ruw| viy| sos| iic| ljy| hsu| qxs| qxd| qzq| btx| unb| wru| nmr| hel| woh| jnx| dpu| uat| umx| iuk| yex| hyi| tne| btr| yvb| bcq| ehu| rir| zjs| cfg| xdj| vdz| emc| kuk| wfn| bmt| rsd| zgf| rzh| eqh| iwk| awj|