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The Relations of the Traps of the Newark System in the New Jersey Region
From introduction: This contribution is a summary of the more complete results of a systematic study of the relations of the traps of the Newark system in New Jersey and New York
Date:
1890
Creator:
Darton, Nelson Horatio
System:
The UNT Digital Library
On a Group of Volcanic Rocks from the Tewan Mountains, New Mexico and on the Occurrence of Primary Quartz in Certain Basalts
A report about volcanic rocks from the Tewan Mountains which present a series of transitions from acid rhyolite, through audesite, to quite basic basalt.
Date:
1890
Creator:
Iddings, Joseph Paxson
System:
The UNT Digital Library