- pyroclastic tephra
- 火山碎屑物
English-Chinese geology dictionary (英汉地质大词典). 2013.
pyroclastic tephra
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Pyroclastic flow — Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 1984 … Wikipedia
Pyroclastic rock — Pyroclastic rocks or pyroclastics (derived from the Greek πῦρ , meaning fire, and κλαστός , meaning broken) are clastic rocks composed solely or primarily of volcanic materials. Where the volcanic material has been transported and reworked… … Wikipedia
Tephra — is air fall material produced by a volcanic eruption regardless of composition or fragment size. [This is the broad definition of tephra (Greek tephra , ash ) proposed by the Icelandic volcanologist Sigurdur Thorarinsson in 1954, in connection… … Wikipedia
pyroclastic flow — ▪ volcanism in a volcanic eruption, a fluidized mixture of hot rock fragments, hot gases, and entrapped air that moves at high speed in thick, gray to black, turbulent clouds that hug the ground. The temperature of the volcanic gases can… … Universalium
Tephra — Fossile pyroklastische Brekzie, Grand Teton Nationalpark, Wyoming Als Pyroklastische Sedimente, auch pyroklastische Ablagerungen oder Pyroklastika, werden in der Vulkanologie Ablagerungen bezeichnet, die zu mehr als 75% aus Pyroklasten bestehen.… … Deutsch Wikipedia
tephra — see pyroclastic cloud … Geography glossary
stratovolcano — ALASKA VOLCANO OBSERVATORY GLOSSARY also called a stratocone or composite cone A steep sided volcano, usually conical in shape, built of lava flows and fragmental deposits from explosive eruptions. GLOSSARY OF VOLCANIC TERMS A generally steep… … Glossary of volcanic terms
The Hagerman Horse Quarry — The Hagerman Fossil Beds National Monument is located west of Hagerman, Idaho at the geographic division of the Snake River Plain. The Hagerman Horse Quarry is an integral part of the monument and is located on the northern flank of Fossil Gulch… … Wikipedia
composite volcano — GLOSSARY OF VOLCANIC TERMS A generally steep sided volcano composed of a mixture of lava flows, pyroclastic deposits, and volcaniclastic sedimentary deposits. Composite volcanoes commonly have increasing slopes toward their summits since they… … Glossary of volcanic terms
Mount Vesuvius — This article is about the mountain/volcano in Italy. For other uses, see Vesuvius (disambiguation). Mount Vesuvius Monte Vesuvio … Wikipedia
Volcanic ash — consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions,United States Geological Survey. [http://volcanoes.usgs.gov/Hazards/What/Tephra/tephra.html Tephra: Volcanic Rock and Glass Fragments.] Retrieved… … Wikipedia
