GC6M0PA 神尾横臥褶曲/Kamio recumbent fold (Earthcache) in Shizuoka, Japan created by WeatherReport

GC6M0PA ▼

A cache by WeatherReport Message this owner

Hidden : 6/19/2016

Difficulty:

Terrain:

Size: Size: other (other)

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Geocache Description:

このEarthcacheでは褶曲について学びます。
You can learn geological fold with this earthcache.

褶曲とは？/What is the fold?

褶曲（しゅうきょく）とは地層の側方から大きな力が掛かった際に、地層が曲がりくねるように変形する現象のことです。
A geological fold occurs when one or a stack of originally flat and planar surfaces, such as sedimentary strata, are bent or curved as a result of permanent deformation.

褶曲の形成/formation of the fold

地震の力によって短時間で形成される場合もありますが、多くはプレートの移動などで長時間強い力を受け続けることで形成されます。
2方向からの圧縮の力と、隆起や沈降の力などがかかって形成されます。比較的固い岩盤の場合は、褶曲が形成される途中で破断して断層となることが多いとされています。
また、褶曲は2方向から圧縮されて形成されるため、力の方向に対して垂直方向に形成される事が多いとされています。
There is also a case to be formed in a short period of time by the force of the earthquake. But in many cases formed by it continues to receive strong force long time, such as movement of the plate.
And the force of the compression from the two-way, such as the force of the uplift and sedimentation will be hanging in formation. For relatively hard rock, broken away in the middle of the fold is formed are that it is often a fault.
Since folds are formed is compressed from two directions, it is known as it is often formed in the direction perpendicular to the direction of the force.

褶曲の種類/kind of the fold

力のかかり方によって褶曲は様々な形態を示します。

正褶曲：褶曲軸面が鉛直に近い褶曲
斜究極：褶曲軸面が傾斜した褶曲
等斜褶曲：褶曲面が平行の褶曲
過褶曲：地層が圧縮されて大きく折れ曲り、両翼が同方向の斜めに倒れた褶曲
横臥褶曲：褶曲作用が極度に進み軸面が横倒しになりほとんど水平に近づいたもの
山形褶曲：軸厚一定、相圧もヒンジ部を除いて一定。軸部の曲率が極めて大きく、かつ翼部が平面をなすジグザグ状の褶曲。シェブロン褶曲とも呼ばれる
Symmetrical folds:Fold axis surface is vertical
Asymmetrical folds:Fold axis surface slope
Isoclinai folds:Parallel fold surface
Overturned folds:Stratum is compressed bent big, fold the wings fell at an angle in the same direction
Recumbant folds:Those extremely proceed axis plane is folding action is approaching almost horizontally becomes sideways
Chevron folds:The thickness of the shaft is constant. Curvature of the shaft portion is very large, and the zigzag blade portion forms a planar state

TASK

このEarthcacheをFoundするためには、まず下記タスクを実行しQuestionの答えをキャッシュオーナーに送ってください。
For claiming your found, first , Perform each task. And, send to the cache owner your answers for the Questions below.

WARNING!!!

途中、大井川沿いに出る必要がありますが、雨の後などは大井川の水量がとても増えます。雨の日もしくは雨が上がった後でも大雨あがりの場合は訪問はおやめください。
また、時折上流にあるダムで放水が行われ急に水かさが増えることもあります。サイレンが聞こえたらすぐに退避してください。
The way, you need to come out along the Oi River. However, such as after the rain is very increases the amount of water in the Oi River. Visit Stop if it was rainy days or after that ceased of heavy rain.
In addition, it will be made water cannon at the dam that is occasionally upstream. And there suddenly be volume of water increases. Please retracted as soon hear the siren.

Task 1

まずは公開座標に向かってください。
電車で来る場合は神尾駅に。車で来る場合でもまずは神尾駅まで来たほうが案内看板があり行き先がわかりやすいです。
途中で大井川沿いの砂利道に入る(N 34° 53.100 E 138° 06.500 の辺り）必要があるので道を間違えないようご注意ください
First, Please go to public coordinates.
If you get on train, You get off Kamio-Station. Else if you come there by the car, You come to Kamio-Station, too. There is a destination sign up to fold, direction is easy to understand towards
You need to enter the gravel road along the Oi River on the way. (Around N 34 ° 53.100 E 138 ° 06.500) Please note that you do not mistake the road

Task 2

公開座標の辺りで褶曲を見ることができます。
この褶曲をよく観察し、以下のQuestionを考え答えてください。
You can fold is seen in around the public coordinate.
This fold well observed, please answer Consider the following Question.

Question 1

この褶曲はどの種類に分類されるでしょうか？　上記「褶曲の種類」を参考に考えてください。
また何故その種類の褶曲と言えるのでしょうか？　理由も説明してください
Will this fold is classified in any type? Please think in reference to the above-mentioned "kind of fold."
Also, Why fold of its kind? Please answer also the reason

Question 2

この褶曲はどの方向とどの方向から圧力がかかったと推測されますか？　褶曲が見える向きから力のかかった方角を推理してください。
また、ここの褶曲は通常とは異なる珍しい形状を示しています。この褶曲が形成されたシナリオを考えて答えてください。
Does this fold is inferred from any direction and any direction and took the pressure? Please to deduce the direction that took the force from the fold of orientation.
In addition, the individual folds and usually shows a different unusual shape. Please answer consider a scenario in which this fold is formed.

Additional Hints (No hints available.)