geological period following the Cambrian and preceding the Silurian, 1879, coined by English geologist Charles Lapworth (1842-1920) from Latin Ordovices, name of an ancient British tribe in North Wales. The period so called because rocks from it first were studied extensively in the region around Bala in North Wales. The tribe's name is Celtic, literally "those who fight with hammers," from Celtic base *ordo "hammer" + PIE *wik- "to fight, conquer" (see victor).
双语例句
1. Marine volcanics of Early Ordovician was found in Zhifang region.
摘要纸房地区具有早奥陶世海相火山岩存在.
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2. This was the result from the large - scale regression in the Late Ordovician.
这是晚奥陶世晚期大规模海退的结果.
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3. The Cambrian - Ordovician strata in Luxi Block are very continuous and well exposed.
鲁西地块的寒武 - 奥陶纪地层出露连续,露头较好.
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4. NOTES ON THE GENUS REEDOCALYMENE KOBAYASHI, 1951 ( TRILOBITA, ORDOVICIAN )
论奥陶纪三叶虫属ReedocalymeneKobayashi, 1951 ( 英文 )
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5. The Lower Ordovician in Tazhong area is dominated by marine carbonate.
