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地質学

596 件の記事

Metamorphosed (serpentinized) clinopyroxenite, made of green diopside, from the Shetland ophiolite, Unst, Scotland

パイロキセナイト(輝石岩)の組成と地球内部における役割

パイロキセナイト輝石岩超塩基性岩上部マントル
Texture in a thin section of mylonitic quartzite from the Alps, Italy

岩石の組織と微細構造地質学的成り立ちを読み解く鍵

岩石組織微細構造火成岩堆積岩
Vesicular texture in volcanic rock from Tenerife

気孔状組織とは?火山岩に見られる穴の正体と形成メカニズム

気孔状組織火山岩溶岩気孔
Jointed rocks as seen in the Bar Harbor Formation, Bar Harbor, Maine.

節理(ジョイント)の地質学的特性と形成メカニズム

節理地質学構造地質学柱状節理
Columnar jointing in Giant's Causeway in Northern Ireland

柱状節理のメカニズムと世界的な事例自然が造る幾何学的な岩石構造

柱状節理玄武岩火山岩地質学
Mid-ocean ridge cross-section (cut-away view)

中央海嶺地球最大の山脈が形作る海底のダイナミズム

中央海嶺プレートテクトニクス海底拡張説海洋地殻
Only a few of the largest large igneous provinces appear (coloured dark purple) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data.

巨大火成岩岩省(LIP)の正体地球規模の火山活動と大量絶滅の相関

巨大火成岩岩省LIPマントルプルーム洪水玄武岩
Only a few of the largest large igneous provinces appear (coloured dark purple) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data.

巨大火成岩岩省(LIP)の正体地球規模の火山活動と大量絶滅の相関

巨大火成岩岩省LIPマントルプルーム洪水玄武岩
A cliff at the Paraná Magmatic Province. Rio do Rastro, Santa Catarina. One can see the near vertical escarpment of silicic succession from waning-stage volcanism.

パラナ・エテンデカ大火成岩岩州超巨大火山活動が刻んだ地球の記憶

パラナ・エテンデカ大火成岩岩州洪水玄武岩パンゲア
The extent of the Siberian Traps showing where lava, tuff and tuffite were deposited. (map in German)

シベリアトラップ地球史上最大級の火山活動と大量絶滅の謎

シベリアトラップ大量絶滅ペルム紀・三畳紀境界洪水玄武岩
A view from the top of the Great Escarpment in the Karoo National Park near Beaufort West, looking south across the plains of the Lower Karoo: Note the remnants and extent of the former central plateau on the plain below the escarpment (see diagram on the right). Also note the dolerite sills which top the escarpment and mountains in the middle distance, giving these structures their characteristic flat-topped appearance.

カルー地方の地質と生態系南アフリカの広大な半乾燥地帯

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コロンビア川玄武岩群の地質学巨大火成岩岩州の形成とホットスポットの謎

コロンビア川玄武岩群巨大火成岩岩州ホットスポット北米プレート