This field book contains daily, diary like notes on the paleontological specimen and geology of Caborca, Sonora, Mexico taken from 23 March 1943 to 10 May 1944. Cooper describes stratigraphy, often ...
MEXICO CITY, Oct 18 (Reuters) - Mexican mining and transportation conglomerate Grupo Mexico sent a proposal to the interior ministry to establish a work group to address contamination of the Bacanuchi ...
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