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Diatom hat rack

 
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gslaten



Joined: 04 Feb 2005
Posts: 186
Location: Tucson Arizona USA

PostPosted: Sun Aug 07, 2005 9:33 pm    Post subject: Diatom hat rack Reply with quote

Hi all,

After looking at some strew diatom slides I made a couple of years ago, I decided to make some new ones today. This time I took the advice prepare the strew on the coverslip, let it dry and invert the coverslip over a drop of Zrax on the slide. The assembly was heated to 125C til the bubbling stopped, then removed and allowed to cool. This leaves most of the diatoms at or near the coverslip surface. This slide was prepared from some cleaned Oamaru (NZ) material provided to me by Bill Dailey.

I have never seen this critter before, thought maybe someone could identify it for me. Reminds me of a hat rack.



This is a stack of 15 images using Helicon Focus
CP4500
Electronic Flash/Tungsten Halogen
40X Neofluor
Converted to BW

Thanks for looking,

Gary
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Charles Krebs



Joined: 13 Jul 2004
Posts: 1200
Location: Issaquah, WA USA

PostPosted: Sun Aug 07, 2005 10:33 pm    Post subject: Reply with quote

Gary... I just love the forms and shapes of these diatoms. I have no idea what your "hat-rack" is, but you certainly obtained some very fine detail on its surface.
... gotta find that bottle of Zrax I bought last winter... Very Happy
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Wim van Egmond



Joined: 08 Apr 2005
Posts: 440
Location: Rotterdam, the Netherlands

PostPosted: Mon Aug 08, 2005 1:51 am    Post subject: Reply with quote

Hello Gary,

Interesting shapes! It looks a bit like the part of an Odontella (formerly Biddulphia) type of diatom!

Wim
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Mike



Joined: 12 Dec 2004
Posts: 217
Location: Northeast Ohio, USA

PostPosted: Mon Aug 08, 2005 4:08 am    Post subject: Reply with quote

Hello Gary,

Nice shot and great detail. Now you have me thinking of going back and making some more diatom strews!

It appears you have won the battle with your flash system as the lighting is even across the photo.

All the best,

Mike
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Ken Ramos
Site Admin


Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Mon Aug 08, 2005 4:26 am    Post subject: Reply with quote

A great image you have there Gary and you did a good job with the HF, of which I have yet to download and try. Good work Gary and thanks for the post! Very Happy
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Kenneth Ramos
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Kens Microscopy
Reposts of my images within the galleries are welcome, as are constructive critical critiques.
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gslaten



Joined: 04 Feb 2005
Posts: 186
Location: Tucson Arizona USA

PostPosted: Mon Aug 08, 2005 6:58 am    Post subject: Reply with quote

Hi,

Thanks for the nice complements everyone. Thanks to you Wim I have a starting point for what to look for.

Regards,

Gary
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Wim van Egmond



Joined: 08 Apr 2005
Posts: 440
Location: Rotterdam, the Netherlands

PostPosted: Mon Aug 08, 2005 7:05 am    Post subject: Reply with quote

This image shows the type of diatom:

http://www.marbot.gu.se/SSS/diatoms/Odontella_aurita.htm

But the one on your image is quite different from what I have seen. Is it fossil material?

best regards, Wim
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gslaten



Joined: 04 Feb 2005
Posts: 186
Location: Tucson Arizona USA

PostPosted: Mon Aug 08, 2005 7:46 am    Post subject: Reply with quote

Hi Wim,

Thanks for providing the link to the photo. There is certainly a similarity as I compare them, but difficult to say for sure.

Yes, the strew is from fossil material provided to me by Dr. Bill Dailey.

Thanks for the help.

Gary
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twebster
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Joined: 19 Apr 2004
Posts: 1518
Location: Phoenix "Valley of the Sun", Arizona, USA

PostPosted: Mon Aug 15, 2005 3:25 pm    Post subject: Reply with quote

Hi ya' Gary Very Happy

Thank you for providing this unique image. Your image will grace the front cover of www.amateurmicroscopy.net for the next 30 days. Thanks for your continued participation and support. Very Happy

Best regards as always, Very Happy
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Tom Webster
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Ken Ramos
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Joined: 04 May 2004
Posts: 4809
Location: Western North Carolina

PostPosted: Mon Aug 15, 2005 4:27 pm    Post subject: Reply with quote

Congrats Gary! Applause Applause Applause Applause One great diatom image. Fifteen images huh? Lotta work there Gary and it turned out great! Once again a big hand Applause Gary and thanks Very Happy
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Kenneth Ramos
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Kens Microscopy
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gslaten



Joined: 04 Feb 2005
Posts: 186
Location: Tucson Arizona USA

PostPosted: Tue Aug 16, 2005 2:16 pm    Post subject: Reply with quote

Hi,

Many thanks Tom and Ken. I truly appreciate being selected this month.

A truly fantastic group of forums.

Gary
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Raymond



Joined: 21 Aug 2005
Posts: 1

PostPosted: Sun Aug 21, 2005 2:45 am    Post subject: Reply with quote

Very nice image! Well done.
I just browsed the genus Biddulphia in Klaus Kemp's Diatom Database, and I think this diatom is Biddulphia tridens (Ehrenberg) Ehrenberg.

Raymond
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nzmacro
Site Admin


Joined: 20 Apr 2004
Posts: 1604
Location: New Zealand

PostPosted: Sun Aug 21, 2005 3:53 am    Post subject: Reply with quote

Very well deserved Gary. Amazing shot. Just wish I was as capable as this. Excellent work.

All the best Gary and very well deserved Very Happy

Danny.
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gslaten



Joined: 04 Feb 2005
Posts: 186
Location: Tucson Arizona USA

PostPosted: Sun Aug 21, 2005 6:37 am    Post subject: Reply with quote

Hi Raymond and Danny,

Raymond, I just did a Google search on Biddulphia Tridens and I believe you have nailed it. Thank you very much. I see you just joined the group and would like to give you a hearty welcome.

Danny, thank you very much for the congratulations.

Gary
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S. Alden
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Joined: 29 Apr 2004
Posts: 2780
Location: Pennsylvania, USA

PostPosted: Sun Aug 21, 2005 7:03 am    Post subject: Reply with quote

I know I had commented on this, but um..well it is not here.

Congrats on an excellent image and one deserving of the Administrator's Pick Very Happy
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