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地質学

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Turbidites are deposited in the deep ocean troughs below the continental shelf, or similar structures in deep lakes, by underwater avalanches which slide down the steep slopes of the continental shelf edge. When the material comes to rest in the ocean trough, it is the sand and other coarse material which settles first followed by mud and eventually the very fine particulate matter. It is this sequence of deposition that creates the Bouma sequences that characterize these rocks.

タービダイトのメカニズムと地質学的意義深海堆積物の構造と形成

タービダイト混濁流ブーマ・シーケンス深海堆積物
Greenland is isostatically depressed by the Greenland ice sheet such that parts of the bedrock surface in the interior are below sea level.

氷河地殻均衡(アイソスタシー)とグリーンランドの地殻変動

氷河地殻均衡アイソスタシー地殻沈降地殻リバウンド
The slump that destroyed Thistle, Utah, by creating an earthen dam that flooded the area

スランプ(地すべり)のメカニズムと種類斜面崩壊の科学

スランプ地すべりマスウェイスティング回転スランプ
Talus at the bottom of Mount Yamnuska, Alberta, Canada

ガレ場(スクリー)とタラスの科学形成メカニズムから生態系まで

ガレ場スクリータラス岩屑
Trees showing the presence of creep

土壌クリープ(土壌匍匐)のメカニズムと地表への影響

土壌クリープ土壌匍匐斜面崩壊地質学
Eemian erosion surface in a fossil coral reef on Great Inagua, The Bahamas. Foreground shows corals truncated by erosion; behind the geologist is a post-erosion coral pillar which grew on the surface after sea level rose again.

侵食面の地質学的特性と測定手法自然地形から道路まで

侵食面不整合地質学地形学
Badlands incised into shale at the foot of the North Caineville Plateau, Utah, within the pass carved by the Fremont River and known as the Blue Gate. G. K. Gilbert studied the landscapes of this area in great detail, forming the observational foundation for many of his studies on geomorphology.[1]

地形学地球表面を形作るダイナミズムの科学

地形学地貌学地表プロセス浸食
Sediment deposited by the lake with a hammer for scale.

ミズーラ湖氷河時代に起きた巨大洪水と地形の変遷

ミズーラ湖氷河湖決壊洪水氷河時代モンタナ州
The Caaf Water running over limestone: a good site for rock-cut basins.

岩盤盆地(ロックカットベイスン)の形成メカニズムと伝承

岩盤盆地ロックカットベイスンコルク河川侵食
One of many kolk-formed depressions or "potholes" in the channeled scablands in eastern Washington at WikiMiniAtlas46°54′21.40″N 119°16′47″W / 46.9059444°N 119.27972°W / 46.9059444; -119.27972.

コルク(水底渦)による浸食メカニズムと地質学的影響

コルク水底渦流体浸食ハイドロダイナミック・スカウア
Glacial erratics from Norway on Schokland in the Netherlands

迷い石(氷河漂礫)が語る地球の記憶と氷河の旅

迷い石氷河漂礫氷河時代地質学
Example of a Glaciokarst are the Dachstein Mountains which are a typical Alpine glaciokarst in the Eastern Alps.

氷河カルスト(Glaciokarst)の形成メカニズムと地質学的特徴

氷河カルストカルスト地形氷河侵食石灰岩