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Geology of the State of Morelos and contiguous areas in south-central Mexico
Carl F. Fries
1959, Open-File Report 59-41
The area described lies in south-central Mexico and embraces all but the southeastern corner and easternmost border of the State of Moreles, the second smallest State in the Mexican Republic. It includes small contiguous parts of the State of Mexico, in the northeastern corner, and of the State of Guerrero...
Occurrences of alunite, pyrophyllite, and clays in the Cerro La Tiza area, Puerto Rico
Fred Adelbert Hildebrand, Raymond J. Smith
1959, Open-File Report 59-54
A deposit of hydrothermally altered rocks in the Cerro La Tiza area located between the towns of Comerio and Aguas Buenas, approximately 25 kilometers southwest of San Juan, Puerto Rico, was mapped and studied to determine the principal minerals, their extent distribution and origin, and the possibility of their economic...