petrographer การใช้
ประโยค
- ตัวอย่างการใช้เพิ่มเติม: 1 2
- The cash prize, named after American geologist and petrographer Felix Chayes, was established in 1997
- From 1901 to 1911, he was geologist to the Geological Survey of Great Britain and was a petrographer from 1911 to 1935 working for the Geological Survey Department.
- Working in the Lake District, Rutley began to make a special study of rocks and rock-forming minerals, and soon qualified as acting petrographer on the Survey.
- The following year he joined the Michigan State Geologic Survey as a petrographer, and he remained in that post into 1892 while also serving as an instructor at the Michigan College of Mines.
- He served as Lecturer in Petrology at Edinburgh University, and as Petrographer ( 1901 ), Assistant Director ( 1911 ) and Director ( 1920 3 ) of the Geological Survey of Great Britain.
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