Due to the high concentration of iridium in meteorites, scientists believed that the dust was originated from a large meteor impacted. Some even hypothesized that this impact was the cause of the extinction of dinosaurs.
Wasn't this confirmed with a crater found somewhere in Mexico that has the right dimensions and the right date? Note that I may be wrong here.
Actually I don't know any people in the field. I am just an amateur geologist (<-- actually it's chemistry again XD). But I start to find some local books about hiking or Hong Kong geology cited this crater hypothesis, as well as internet (as it can be a really eye catching title).
Yet, there is another hypothesis (published on 2007) that saying it is not a crater but a revived caldera.
The former one seems more common, at least i had came across to it randomly couple times
Great information! I love star gazing too but I didn't go out that night for the meteor shower as I knew there would be a lot of people out there hahaha :) Nice post! Voted and followed you :) Looking forward to your new posts :)
Thanks !! In fact, the light pollution is too heavy in Hong Kong. I saw those live video in other country and the meteor shower is much more condensed and looks really spectacular!
Wasn't this confirmed with a crater found somewhere in Mexico that has the right dimensions and the right date? Note that I may be wrong here.
Wow! I didn't realized it was confirmed.
I just looked in to it and it was called Chicxulub crater
The investigation was published in Science omg!
http://science.sciencemag.org/content/sci/327/5970/1214.full.pdf
This just make me recall some scientist had been proposed that Hong Kong is also made up of a crater XDD
But still a lot of debate on it haha
http://www.i-ching.com.hk/web/?p=168
http://www.i-ching.com.hk/web/?p=163
Thanks for the links! Do you by the way know whether the HK crater story agreed by others in this field?
Actually I don't know any people in the field. I am just an amateur geologist (<-- actually it's chemistry again XD). But I start to find some local books about hiking or Hong Kong geology cited this crater hypothesis, as well as internet (as it can be a really eye catching title).
Yet, there is another hypothesis (published on 2007) that saying it is not a crater but a revived caldera.
The former one seems more common, at least i had came across to it randomly couple times
Thanks for the extra information. So just hypotheses for the moment. Hopefully things will get clearer in the future :)
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Great information! I love star gazing too but I didn't go out that night for the meteor shower as I knew there would be a lot of people out there hahaha :) Nice post! Voted and followed you :) Looking forward to your new posts :)
Thanks !! In fact, the light pollution is too heavy in Hong Kong. I saw those live video in other country and the meteor shower is much more condensed and looks really spectacular!