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LSU Researchers Discover Minerals in Volcanic Rock that May Offer New Insights into the First 1.5 Billion Years of Earth's Evolution（图）
LSU Researchers Minerals Volcanic Rock First 1.5 Billion Years Earth's Evolution
2017/11/23
The first 1.5 billion years of Earth’s evolution is subject to considerable uncertainty due to the lack of any significant rock record prior to four billion years ago and a very limited record until a...
Devitrification of Volcanic Glasses in Konya Volcanic Units, Turkey
Clay Minerals Feldspar Devitrification Volcanic Glass Konya Turkey
2009/7/8
The study area is composed of volcanic, sedimentary and volcano-sedimentary units, which are exposed south and southwest of the city of Konya. XRD analysis indicates that the volcanic units contain ha...
Compositional Variations, Zoning Types and Petrogenetic Implications of Low-pressure Clinopyroxenes in the Neogene Alkaline Volcanic Rocks of Northeastern Turkey
clinopyroxene zoning low-pressure alkaline volcanics eastern Pontides Northeastern Turkey
2009/7/7
Clinopyroxene phenocrysts and microphenocrysts in different series of the Neogene alkaline volcanic rocks from the eastern Pontides (NE Turkey) record various stages in the crystallization conditions ...
