File:Guadalupe_Tuff.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as volcanic tuff
火山灰が地上や水中に堆積してできた岩石
Tuff is a type of rock formed from volcanic ash that has been compacted and sometimes fused together by heat. It has been used historically as a building material, as seen in structures ranging from Etruscan tombs to houses in volcanic regions like Germany and the American Southwest.
AI-generated from the Wikipedia summary — may contain errors.
In the Vinony graph
Vinony's link graph records 2,199 inbound references to 凝灰岩, and connects out to Saxony, igneous rock and basalt.
It is catalogued under the topic Tuff.
Vinony links it to 59 Wikipedia language editions.
Key facts
- Rock.name
- Tuff
- Rock.type
- Igneous
- Rock.image
- Guadalupe Tuff.jpg
- Rock.caption
- Tuff from the Guadalupe Formation in Luzon, Philippines
- Rock.composition
- Volcanic ash
- Rock.composition_secondary
- Quartz, feldspars (sanidine, anorthoclase, plagioclase), biotite, pyroxene (augite), hornblende, and magnetite
- Rock.class
- Mafic to felsic
- Rock.texture
- Pyroclastic or Eutaxitic
via Wikipedia infobox
Wikidata facts
- Subclass of
- pyroclastic rock
- Material used
- volcanic ash
- Image
- HoleInTheWallTuff.JPG
Show 4 more facts
- Commons category
- Tuff
- different from
- tufa
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- exact match
- purl.obolibrary.org/obo/ENVO_01000661
via Wikidata · CC0
Article · 日本語
凝灰岩(ぎょうかいがん、英: tuff、タフ)は、火山から噴出された火山灰が地上や水中に堆積してできた岩石。成分が火山由来であるが、生成条件から堆積岩(火山砕屑岩)に分類される。 典型的な凝灰岩は数mm以下の細かい火山灰が固まったもので、白色・灰色から暗緑色・暗青色・赤色までさまざまな色がある。塊状で割れ方に方向性はない。凝灰岩は層状構造(層理)を持たないことも多いが、大規模な噴煙から降下した場合や水中でゆっくり堆積した場合は層状をなすこともある。火山噴出物が凝結してできた岩石。凝灰石は流水によって運ばれないので形は角があって角ばった形になっている。
Abstract from DBpedia / Wikipedia · CC BY-SA
Gallery (30)
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