A petrologist, much of his field work concerned rocks in Colorado.
2.
*We need a petrologist here not an archeologist.
3.
Cross was a petrologist, and much of his field work focused on rocks.
4.
He was primarily a petrologist and mineralogist, though later in his career contributed to geochronology.
5.
It was first described in 1913 from an occurrence in Swedish petrologist Per Johan Holmquist ( 1866 1946 ).
6.
Petrologist use the age of the overburden to help to attain and double confirm the latest age of the underburden.
7.
"' J�zef Morozewicz "'( 27 March 1865 12 June 1941 ) was a Polish mineralogist and petrologist.
8.
During the war, he investigated British supplies of moulding sands for use in metal foundries and ultimately became " a recognized authority as a sedimentary petrologist ."
9.
The mineral name was chosen to honor Dmitriy A . Ivanov ( 1962 1986 ), a geologist, mineralogist, and petrologist who died on a field expedition.
10.
"I'm still struggling with it, " says petrologist Harry McSween of the University of Tennessee, the Pathfinder team's lead rock expert.
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