tephra

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tephra是什么意思
英式音标:['tefrə]英式读音
美式音标:['tefrə]美式读音
词汇分类:Word Menu,Better Wordpower
词义:

n.

火山灰;

英英释义

Tephra

Tephra horizons in south-central Iceland].

以上来源于:Wikipedia

用法:

权威例句

The thickness, volume and grainsize of tephra fall deposits

Sedimentation of tephra by volcanic plumes. Part 2: controls on thickness and grain-size variations of tephra fall deposits

Quantitative models of the fallout and dispersal of tephra from volcanic eruption columns

Quantitative models of fallout and dispersal of tephra from volcanic eruption columns. Bull Volcanol

Thickness variations and volume estimates of tephra fall deposits: the importance of particle Reynolds number

Comment and Reply on ‘Comparison of zircon and glass fission-track ages from tephra horizons’

Influence of particle aggregation on deposition of distal tephra from the May 18, 1980, eruption of Mount St. Helens volcano

Fingerprints and age models for widespread New Zealand tephra marker beds erupted since 30,000 years ago: a framework for NZ-INTIMAT...

A review of late Quaternary silicic and some other tephra formations from New Zealand: Their stratigraphy, nomenclature, distributio...

A Younger Dryas Ash Bed in western Norway, and its possible correlations with tephra in cores from the Norwegian Sea and the North A...
同义词:volcanic ash,pozzuolana,pozzolana
造句:

1. Mustafar's skies are obscured by choking black clouds of ash, smoke and tephra.

穆斯塔法的天空弥漫着令人窒息的黑云,其主要成分为灰烬、烟雾与火山灰。

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2. Tephra is any fragmented material produced by a volcanic eruption, be it ash or rock.

无论是灰烬还是岩石,所有因火山爆发而形成的碎片状物质都称作火山灰。

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3. The ledge was covered with heavy ash, called tephra, and speckled with droplets of volcanic glass and delicate lava threads known as Pele's hair.

岩架上覆盖了厚厚的火山灰烬,其间点缀着火山玻璃珠和被称之为火山毛(Pele ' s hair)的熔岩细线。

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4. New information on the response of vegetation to air-fall volcanic ash is provided by analysis of phytoliths from sediments containing major tephra beds.

含火山灰层沉积的植硅体分析为了解植被对从空中下降的火山灰的反应提供新的信息。

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5. Significant changes in phytolith assemblages occur at the same depth as four major tephra. indicating a sharp decline in trees and shrubs and a surge in grass and Cyperaceae.

植硅体组合在4个主要的火山灰层都发生了明显的变化,表现在树木和灌木的急剧下降及禾草类和莎草科的繁盛。

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6. Around the same time, a massive volcanic eruption in the Wrangell Mountains in Alaska occurred, blanketing the area in a layer of ash, up to a foot deep, called the White River tephra.

大致在同一时期,阿拉斯加州的弗兰格尔山脉出现了大规模的火山爆发,这个地区遂被深达一英尺的怀特河火山灰所覆盖。

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7. Around the same time, a massive volcanic eruption in the Wrangell Mountains in Alaska occurred, blanketing the area in a layer of ash, up to a foot deep, called the White River tephra.

大致在同一时期,阿拉斯加州的弗兰格尔山脉出现了大规模的火山爆发,这个地区遂被深达一英尺的怀特河火山灰所覆盖。

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tephra

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