Alpine-type en echelon fissures, Chli Bielenhorn

How to use the mindat.org media viewer

Click/touch this help panel to close it.

Welcome to the mindat.org media viewer. Here is a quick guide to some of the options available to you. Different controls are available depending on the type of media being shown (photo, video, animation, 3d image)

Controls - all media types

Zoom in and out of media using your mousewheel or with a two-finger 'resize' action on a touch device.

Use the mouse or your finger to drag the image or the view area of the image around the screen.

< and > at the left and right hand side of the screen move forwards and backwards for the other images associated with the media you selected. Usually this is for further photos of the same specimen. Keyboard shortcuts: use the left and right arrow keys.

> in the bottom center, raises the information box giving details and further options for the media, < at the top of this box then hides it. Keyboard shortcuts: use the up and down arrow keys.

? opens this help window. Keyboard shortcuts: use the H key or the ? key.

Other keyboard shortcuts:

1Fit image to screen
2Fill screen with image
5Display at full resolution
<Make background darker
>Make background lighter
spaceHide/dim titles and buttons

Controls - Video

Video files have a standard set of video controls: - Reset to start, - Skip back, - Play, - Pause, - Skip forwards. Keyboard shortcuts: You can stop/start video play with the P key.

Controls - Animation (Spin Rotation)

Animation (usually 360 degree spin rotations) have their own controls: - enable spin mode. Note that while images are loading this option will not be available but will be automatically activated when the animation has loaded. Once active you can spin the image/change the animation by moving your mouse or finger on the image left/right or by pressing the [ or ] keys.

The button switches to move mode so that you can use your mouse/fingers to move the image around the screen as with other media types.

The button, or the P key will start playing the animation directly, you can interrupt this by using the mouse or finger on the image to regain manual movement control.

Controls - 3D Stereoscopic images

Stereoscopic 3D image viewing requires a suitable 3D television or monitor correctly configured for your computer. Passive 3D systems such as LG 3DTVs are the easiest to configure for this.

To enable/disable 3D stereo display of a compatible stereo pair image press the 3 key. If the left/right images are reversed on your display (this often happens in full-screen mode) press the 4 key to reverse them.

Summary of all keyboard shortcuts

1Fit image to screen
2Fill screen with image
3Switch to 3D display of stereo pair
4Switch left/right images in 3D mode
5Display at full resolution
<, >Make background darker/lighter
H or ?Show/hide this help page
PPlay/Pause Video or Animation
[, ]Backwards/forwards one frame (Animation only)
up arrowShow information box
down arrowHide information box
left arrowPrevious image/media page
right arrowNext image/media page
spaceHide/dim titles and buttons

Copyright © Amir Akhavan

Alpine-type en echelon fissures, Chli Bielenhorn

Copyright © Amir Akhavan  - This image is copyrighted. Unauthorized reproduction prohibited.

Zone with large Alpine-type en echelon fissures in the southern rock wall of the Chli Bielerhorn. In the child photo the zone, the fissures and other features have been marked.

The rock is made of weakly metamorphosed granite, the so called "Central Aare granite". In the rock to the left and right many vertical joints and boudinage have formed as a response to compressional and shearing tectonic forces. The central area is less jointed and has the typical blocky appearence of granite rock walls. Horizontal compression and vertical extension together with shearing have caused the formation of an oblique zone of en echelon fissures in its lower part (marked blue on the child photo). The individual Alpine-type fissures have been colored in a darker blue wherever they are actually cut and quartz is visible. They are up to 2 m high and up to 12 m wide, and mostly filled with massive quartz (the "Quarzband"). To the left of the zone is a large fissure that has been exploited by strahlers, with a small whole of about 1 m height.

To the lower left a boudinage zone and its corresponding much smaller extensional fissures have been colored turquoise.

By accident I have also captured two climbers on the photo (yellow arrows), which gives one a good idea of the size of the captured area:
The field of view is about 100 meters wide and 130 meters high.

For a better idea of where this is, check out the high resolution version of this photo: http://www.mindat.org/photo-482014.html

August 2012.

This photo has been shown 584 times
Photo added:16th Aug 2012
Dimensions:2462x3072px (7.56 megapixels)

Other Views - click to switch

View Amir C. Akhavan's Photos

Discuss this Photo

click this
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.4.8 17:06:49