Again, there’s some uncertainty. Nepheline syenite, a rock, is in the area. The only other places it is found in the United States is in Texas and Arkansas. Whether the presence of the rock is ...
In their correspondence, He and colleagues question our conclusion of little or no uplift preceding Emeishan volcanism that we reported in our letter 1. Debate concerns the nature of the contact ...
The purpose of the program was to test several new geological and geophysical targets along with historical near surface gold mineralization along the edges of the O'Brien Syenite Intrusion ("O ...