Volcanic rocks found on Phú Quý Island
PHÚ QUÝ ISLAND — Experts from the Việt Nam Institute of Geosciences and Mineral Resources have found a unique complex of sedimentary rocks that were formed from eruptive volcanoes 一 二 million years ago on Phú Quý Island, off the coast of central south Bình Thuận Province.
Dr Nguyễn Xuân Nam from the institute told Việt Nam News that the rocks were discovered on Cao Cát Mountain – the highest point of the island – during field trips last year.
He said the complex of rocks was created by volcanic ash during eruptions, and then weathered over millions of years.
“Many rocks in hemispherical form dotted the mountain. The surface of rocks would be flattened by strong wind and rain a long, long time ago,” Nam said.
“The volcano in the area would erupt in different periods, but we could see the latest vestige from the Holocene (approximately thousands of year ago),” he said.
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