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![](./images/clear.gif) 1.- Origin of the low Delta (super 18) O silicic ignimbrites associated with the Guachipelin Caldera, NW Costa Rica
Geological Society of America (GSA); Boulder, CO; USA; United States, 2009
Geological Society of America, North-Central Section, 42nd annual meeting
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![](./images/clear.gif) 2.- Trace-element variations induced by incipient weathering of volcanic rocks; implications for interpretations of Central American volcanism
Geological Society of America (GSA); Boulder, CO; USA; United States, 2009
Geological Society of America, North-Central Section, 42nd annual meeting
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