Browsing by Subject "Iceland"
Now showing items 1-4 of 4
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(2015-07-21)Department: Environmental EngineeringTiming and duration of magmatism, involvement of fluid or assimilation of material, and geodynamic context are all important when assessing the processes by which silicic magmas are produced, erupted, or emplaced. This ...
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(2015-07-23)Department: Environmental EngineeringSilicic magmas (>65 wt.% SiO2) play an integral role in creating permanent continental crust. Understanding how silicic magmatic systems evolve can help us better understand the processes that control whether silicic magmas ...
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(2008-05-14)Department: Earth and Environmental SciencesIn the Siða-Fljotshverfi District of south Iceland, Pleistocene basaltic lava forms flame-like apophyses, dikes, and disaggregation structures that invade overlying hyaloclastite. Apophyses as well as underlying lavas are ...
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(2014-07-22)Department: Environmental EngineeringIceland’s great abundance of silicic rock (10-13% of subaerial exposures), coupled with the unusual thickness of the island’s crust, hints at continental nucleation and permanent crust construction in an oceanic environment. ...