Caoling Geopark

Cao Ling's ground sliding caused a large amount of earth and rock slippage, and there were many rockfall phenomena such as falling rock debris on both sides of the ground sliding area, which appeared along with it.

The Caoling Mountain Collapse is a flat-type ground slide. The entire rock layer goes down and it is estimated that its volume is about 140 million cubic meters. The bulging hills on the left in the picture are piled up by falling rocks.

Caoling Dabenshan is also a flat ground slide. The gray rock formation on the right in the photo is the exposed sliding surface. This gray rock layer is often shale or mudstone. Because of its poor water permeability, the interface with the upper rock layer forms a water film due to the impermeable nature of the shale or mudstone. If there is a gap (free end) on the lower slope, once it is impacted by sudden force or continuous rainfall, it will easily cause the upper rock mass to slide and cause ground slip.

The earthquake collapse and subsequent typhoons and torrential rains caused severe impacts on the Dajiaxi River Basin. Earth and rock flows carried many loose sediments into the river system, which often caused disasters during typhoons and heavy rains.

Five Yuan and Two Jiao

Five Yuan and Two Jiao

Dip slope at Caoling Geopark

Products made by bamboo shoots

The earthquake collapse and subsequent typhoons and torrential rains caused severe impacts on the Dajiaxi River Basin. Earth and rock flows carried many loose sediments into the river system, which often caused disasters during typhoons and heavy rains.

921 National Earthquake memorial site

Coffee is one of famous agriculture product of Yunlin

Coffee is one of famous agriculture products of Yunlin

The earthquake collapse and subsequent typhoons and torrential rains caused severe impacts on the Dajiaxi River Basin. Earth and rock flows carried many loose sediments into the river system, which often caused disasters during typhoons and heavy rains.

Cao Ling's "walking mountain" is actually a slippery phenomenon. This kind of ground sliding is moving down a slope along a sliding surface. This sliding surface, also known as the forward slope, has a slope of about 12 degrees. The inclined slope can be clearly shown in this photo.

Caoling's dammed lake is a lake formed by accumulation of avalanches. Over time, the surface of the lake gradually rose and has now overflowed from the drainage channel. However, the danger of bankruptcy still exists.

According to aerial survey estimates, more than 120 million cubic meters of earthwork collapsed this time. The earth was moved, moved over a kilometer, and then piled up on the river in Qingshuixi. Some residual agglomerates still accumulate on the sliding surface.

This photo is a panoramic view of the grassy landslide, taken from downstream to upstream. The relative grass ridge is a very large-scale ground slip. It can be seen from the air that there are three clear free ends, that is, the material on the lower slope of the sloping rock layer has collapsed and lost its support, which is where the ground sliding may continue in the future.

Cao Ling slip is the main phenomenon, but the surrounding rock fall phenomenon is also very common. The collapsed bamboo forest also shows that in addition to the ground slide, many rock formations have slipped. At the same time, there are collapses that are different from the direction of the slip.

In fact, there are other collapse phenomena in Caoling, which are distributed around the ground slide area, and the phenomenon of rock chipping and collapse is more obvious. These rock cuttings also cause damage to the vegetation of the lower slope. Therefore, the appearance of the strips shows strips extending toward the lower slope. These strips are mostly the collapse of surface weathered soil or rock blocks, and there are a few larger earth moving. However, compared with the whole ground sliding area, it seems very small.

The tributary of Qingshuixi below the Caoling slip zone also caused another dammed lake due to the accumulation of avalanche material in the river. Looking from the downstream to the upstream, the avalanche accumulates on the river, blocking about four or five kilometers of the river.

Source: Chien-Tang Lee

Unity Hotel after the 921 earthquake

Heavily damaged building in 921 Earthquake

Rainbow restaurant

Heavily damaged building in 921 Earthquake

Post-disaster site

Post disaster site

Post-disaster site

Post disaster site

Caoling disaster relief

Caoling lake

Qingxi Xiaotiandi Suspension Bridge

The original appearance of the mountain before and after the earthquake

The history board of the cliff Sping Autumn

The cliff Spring Autumn in Caoling

Cliff Spring Autumn

Visitors at Cliff Spring Autumn

Broken Soul Valley

Broken Soul Valley Musa

Nine sacred trees _ winter

Nine sacred trees

Five Yuan Two Corner Bamboo Forest

Shuiyudong

Taiwan-Japan Book Exchange Photo

Endemic plant in Taiwan

Shuiliandong Waterfall)

Ladybugs

Grasshopper

Salamander

Tree frog

Bettle

Feishan Canyon

Caoling lake

Caoling 10000 Year Gorge

Ten thousand years Canyon

Bee picking pollen

Penglai Waterfall (Provided by Yunlin Caoling Geopark)

Chinese fir (Credit: Provided by Yunlin Caoling Geopark)

Emperor Moth (Credit: Provided by Yunlin Caoling Geopark)

Tree frog (Credit: Provided by Yunlin Caoling Geopark)

Grass ridge settlement (Credit: Provided by Yunlin Caoling Geopark)

Caoling overlooking Qingshui Creek (Credit: Provided by Yunlin Caoling Geopark)

Dense ramie (Provided by Yunlin Caoling Geopark)

Black spot weevil (Provided by Yunlin Caoling Geopark)

Penglai Waterfall

cicada

Chinese Hicriopteris (Credit: Provided by Yunlin Caoling Geopark)

Five Yuan and Two Jiao (Credit: Provided by Yunlin Caoling Geopark)

Passion fruit flower (Credit:Provided by Yunlin Caoling Geopark)

Asplenium (Credit:Provided by Yunlin Caoling Geopark)

Water Margin Cave Ripple (Credit: Provided by Yunlin Caoling Geopark)

Selaginella (Credit: Provided by Yunlin Caoling Geopark)

Shibi Valley (Credit: Provided by Yunlin Caoling Geopark)

Barberry (Credit: Provided by Yunlin Caoling Geopark)

Tongxin Waterfall (Credit: Provided by Yunlin Caoling Geopark)

Shalin trail

Coffee flower and fruits (Credit: Provided by Yunlin Caoling Geopark)

Onion weathering (Credit: Provided by Yunlin Caoling Geopark)

Dajiao shan (Credit: Provided by Yunlin Caoling Geopark)

Glory Cliffs (Credit: Provided by Yunlin Caoling Geopark)

Strobilanthes (Credit: Provided by Yunlin Caoling Geopark)

Kū duō shān (fēishān) (Provided by Yunlin Caoling Geopark)

The view of Qingshui Creek on the Qingxi Trail (Provided by Yunlin Caoling Geopark)

Begonia lobata (Provided by Yunlin Caoling Geopark)

Yinlin hill (Provided by Yunlin Caoling Geopark)

Yunlin Hill Tea Plantation (Provided by Yunlin Caoling Geopark)

Honeycomb rock (Provided by Yunlin Caoling Geopark)

Tricyrtis formosana Baker (Provided by Yunlin Caoling Geopark)

Penglai waterfall (Provided by Yunlin Caoling Geopark)

Cicada (Provided by Yunlin Caoling Geopark)

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