home

=Hi 307,= Attached is my presentation slides on Hydrolysis and Hydration.

I hope you are also able to post your slides here. Please do so after you have done your editing.

On top of this, look at the picture below: Source: http://www.buffelskloof.info/images/Lichen%208.JPG

What do you think is the weathering process(es) taking place there? Why? What are your evidence? Could you guess the climatic conditions of the place?

Discuss this in the discussion forum!! Just respond to my posting there.

Dear 307,

As Geography students, I feel that you should be concerned with what's going on around the world, especially those pertaining to geographical knowledge. The recent catastrophic earthquake in Japan being one of them. Recall that you learnt about earthquakes, volcanoes and plate tectonic theory last year, and an earthquake event measuring 9 in the Richter Scale is very rare in recent decades. What is devastating about this tragedy is actually the post-effect of the earthquake- namely the explosion of the nuclear power plant and the ensuing nuclear scare. As the epicentre of the earthquake is 128km off Japan's north-east coast, it also triggered a tsunami as high as 10m. As we are learning the topic on coastal system, try to explain for yourself how the tsunami is formed. Also, look at the website below that shows the detailed frequency, and depth of the 687 quakes starting from 11/3/2011

[|Japan Quake Map]

Dear 307,

Many of you have asked me about powerpoint slides. I must say that the handouts given out in class are sufficient for your revision. The slides attached below here are what I went through in class when we discussed about the factors affecting weathering. You should have taken down the points here if you attended the session.