Sunday, April 12, 2009

The field trip

This was the photo taken by me during our geography field trip. My great geography partner Jennifer was trying to "push "the stack. The erosional feature of a headland.

The formation of a stack need a long process. First is the formation of a cave formed by the forces of the sea, waves erode the rock face of a coast line, produce huge caverns.Then, already existing caves are continously eroded by coastal erosion and the water starts to widen the cave. Further erosion of the cave will result in a natural arch when the wave's erosional power cuts through the headland. Next,wave energy will continue to erode through the arch until the roof become too thin to support itself. Eventually it will collapse, leaving an isolated pillar,and this pillar is called a stack.

These kinds of geography features can attract tourism and on the other hand, develop local economy. People love to name these features with metaphor or simile. I wanna to name this rock as "lonely heart" because this rock is really lonely. Do u agree??

Saturday, April 4, 2009

dinosaur overseeing the sea

Look at this photo,do you think the shape of the rock is like a big dinosaur?The is a famous scenery in Dalian JinShitan Resorts called "KongLong Tan Hai" in English which means "Dinosaus overseeing the sea". This is formed because of the coastal erosion of a headland.
Through this blog, I'll talk about the formation of this fantastic landform I learned form my Geography class.

The first step in the process of headland erosion is the formation of a cave. A sea cave is formed by the forces of the sea, waves erode the rock face of a coast line, produce huge caverns.Already existing caves are continously eroded by coastal erosion and the water starts to widen the cave. Further erosion of the cave will result in a natural arch. This is formed when the wave's erosional power cuts through the headland. This scenery "Kongling Tan Hai " is actually a natural arch.

Based on my geography knowledge, after thousands of years, this scenery will become a stack and finally it will be a stump.Because wave energy will continue to erode through the arch, especially its roof. Then the roof will become too thin to support itself. Eventually it will collapse, leaving an isolated pillar called a stack. The stack, will then, be further eroded until it is all broken down into small pieces of rocks known as stumps which is an isolated upstanding rocks .

So, after thousands of years, this view will no longer exist as the coastal erosion continuous. The shape of this rock will change. Maybe this view will be called "lonely pillar" or something.

Saturday, March 28, 2009

My trip to ZhangJiajie


I have seen many caves in China but the most impressed cave in my mind is HuangLong Cave in ZhangJia jie.In English,HuangLong Cave can be translated to Yellow Dragon Cave.Through this name, we can imagine how spectacular this cave is.
HuangLong Cave is located in the east of Suoxiyu Valley.It is an underground magic palace. In the cave, the path is zigzag. Stone shoots, stone stalactites, stone curtains, stone pianos, and stone flowers can be founded there. Before, I didn't know the formation of these spectacular landscape.Last week in geography class,we learned about karst landscape and I knew how this cave was formed.As the surface waters diappear underground ,limestone is dissolved and carried along in solution. Dripping water from the cave ceilings falls to the floor of the cave and here some of the limestone is deposited to creat a growing mound of deposit. And this deposite is called a stalagmite. Some similar feature is formed on the roof of the cave at the point where the water drips. And these hanging deposits are called stalactites. In the cave ,we can see pillars and this is fromed when the stalagmites and stalactites join together.
With the decoration of neon lights, the cave looks more atractive. When I wandered around here, I felt lost. The only thingI wanted to say when I walked out of the cave was " Nature is such a great artist!"