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User:Straal

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Straal is a member of Mensa International.


Normally he doesn't add new pages, but tidies up or enhances existing ones he finds lying around...


You can help improve the articles listed below! This list updates frequently, so check back here for more tasks to try. (See Wikipedia:Maintenance or the Task Center for further information.)

Fix spelling and grammar
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Help counter systemic bias by creating new articles on important women.

Help improve popular pages, especially those of low quality.

Also work needed on :


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See also: Maintenance departments
Trou au Natron
Trou au Natron is a volcanic caldera in the Tibesti Massif in northern Chad. The volcano is extinct, and it is unknown when it last erupted. Trou au Natron is located just south-east of Toussidé, the westernmost volcano of the Tibesti Mountains. The caldera has an irregular diameter of approximately 6 to 8 kilometres (4 to 5 miles) and is up to 1,000 metres (3,300 ft) deep. Because of its irregular shape, it has been theorized that the caldera was formed as a result of multiple massive explosions, each of which deepened the enormous pit. Its exact period of formation is unconfirmed, although a Pleistocene formation has been suggested. Much of the surface of the caldera is lined with a white crust of carbonate salts such as sodium carbonate and natrolite, known as natron, leading to the caldera's name, literally 'hole of natron' in French. This crust is sometimes known as the Tibesti Soda Lake. Both the slopes and the floor of the caldera contain thick layers of fossilized aquatic gastropods and diatoms, indicating that it was once home to a deep lake. This satellite image of Trou au Natron was taken in 2008 from the International Space Station, at an altitude of around 352 kilometres (219 miles). The white crust can be seen at the bottom of the caldera.Photograph credit: NASA



His contributions so far:

30 June 2010

14 July 2006

27 September 2005

17 September 2005

14 September 2005

8 September 2005

6 September 2005

2 September 2005

25 August 2005

24 August 2005

11 August 2005

25 May 2005

4 May 2005

9 April 2005

8 April 2005

7 April 2005

17 March 2005


Some signatures:
~~~|[[User_Talk:Straal|☺]] ~~~~~
Straal| 23:15, Jul 8, 2004 (UTC)

~~~
Straal

~~~~
Straal 23:15, Jul 8, 2004 (UTC)

~~~~~
23:15, Jul 8, 2004 (UTC)