pyroclastic {{Geology}} - definição. O que é pyroclastic {{Geology}}. Significado, conceito
Diclib.com
Dicionário ChatGPT
Digite uma palavra ou frase em qualquer idioma 👆
Idioma:

Tradução e análise de palavras por inteligência artificial ChatGPT

Nesta página você pode obter uma análise detalhada de uma palavra ou frase, produzida usando a melhor tecnologia de inteligência artificial até o momento:

  • como a palavra é usada
  • frequência de uso
  • é usado com mais frequência na fala oral ou escrita
  • opções de tradução de palavras
  • exemplos de uso (várias frases com tradução)
  • etimologia

O que (quem) é pyroclastic {{Geology}} - definição

ROCKS COMPOSED SOLELY OR PRIMARILY OF FRAGMENTS DERIVED FROM EXPLOSIVE VOLCANIC ACTIVITY
Pyroclastic; Pyroclastic rocks; Pyroclastics; Pyroclastic material; Pyroclastic deposit
  • Rocks from the [[Bishop Tuff]], uncompressed with [[pumice]] on left; compressed with [[fiamme]] on right.
  • Katla]] in [[Iceland]]. Find spot: Beach near [[Vik]] at the end of road 215. Acquisition done using "CT Alpha" by "Procon X-Ray GmbH", Garbsen, Germany. Resolution 11,2μm/[[Voxel]], width approx. 24 mm.
  • 3D-Rendering of the above image stack, in parts transparent. Heavy particles in red.

pyroclastic {{Geology}}      
pyroclastic Geology [?p??r?(?)'klast?k]
¦ adjective of or denoting rock fragments or ash erupted by a volcano, especially as a hot, dense, destructive flow.
¦ noun (pyroclastics) pyroclastic material.
Derivatives
pyroclast noun
nuee ardente         
FAST-MOVING CONCENTRATED CURRENT OF HOT GAS AND VOLCANIC MATTER THAT MOVES AWAY FROM A VOLCANO
Pyroclastic flows; Pyroclastic Flow; Pyroclastic Eruption; Nuée ardente; Nuee ardente; Pyroclastic cloud; Nués ardentes; Pyroclasic flows; Pyroclastic density current; Ash flow; Nues ardentes; Nuees ardentes; Pyroclastic Flows; Stone wind; Nuée Ardente; Glowing Cloud; Nuées ardentes; Nuee Ardente; Pyroclastic eruption; Pyroclastic current; Pyroclastic Current; Pyroclastic Stream; Pyroclastic stream; Nue ardente; Ashflows; Ashflow
[?nj?e. ?:'d? uee ardentet]
¦ noun Geology an incandescent cloud of gas, ash, and lava fragments ejected from a volcano, typically as part of a pyroclastic flow.
Origin
Fr., lit. 'burning cloud'.
pyroclastics         
pyroclastic material.

Wikipédia

Pyroclastic rock

Pyroclastic rocks (derived from the Greek: πῦρ, meaning fire; and κλαστός, meaning broken) are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroclasts. Pyroclastic rocks are a type of volcaniclastic deposit, which are deposits made predominantly of volcanic particles. 'Phreatic' pyroclastic deposits are a variety of pyroclastic rock that forms from volcanic steam explosions and they are entirely made of accidental clasts. 'Phreatomagmatic' pyroclastic deposits are formed from explosive interaction of magma with groundwater.

Unconsolidated accumulations of pyroclasts are described as tephra. Tephra may become lithified to a pyroclastic rock by cementation or chemical reactions as the result of the passage of hot gases (fumarolic alteration) or groundwater (e.g. hydrothermal alteration and diagenesis) and burial, or, if it is emplaced at temperatures so hot that the soft glassy pyroclasts stick together at point contacts, and deform: this is known as welding.

One of the most spectacular types of pyroclastic deposit is an ignimbrite, which is the deposit of a ground-hugging pumiceous pyroclastic density current (a rapidly flowing hot suspension of pyroclasts in gas). Ignimbrites may be loose deposits or solid rock, and they can bury entire landscapes. An individual ignimbrite can exceed 1000 km3 in volume, can cover 20,000 km2 of land, and may exceed 1 km in thickness, for example where it is ponded within a volcanic caldera.