Foraminifera (prepared slide of historic material).

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gekko
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Foraminifera (prepared slide of historic material).

#1 Post by gekko » Tue Jan 06, 2015 2:39 am

From the slide label: "Foraminifera Globigerina Ooze; Challenger Station 338; March 21st 1876; 21Deg-15min S. 14Deg 2min W; 1990 Fathoms; South Atlantic. Ex Norman." Strewn, dry mounted by Brian Darnton.
Slide was illuminated from above the stage by an IKEA LED lamp and a cut table-tennis ball was used as a diffuser [4x objective]. Two areas of the slide are shown below.

Image

Image

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lorez
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Re: Foraminifera (prepared slide of historic material).

#2 Post by lorez » Tue Jan 06, 2015 3:33 am

Great photos, gekko.

A little geology, a little geography, and a little history. I love the old slides.

lorez

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vasselle
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Re: Foraminifera (prepared slide of historic material).

#3 Post by vasselle » Tue Jan 06, 2015 7:17 am

Bonjour Gekko
Superbes photos j'aime beaucoup.
Cordialement seb
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Waltermicrofossil
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Re: Foraminifera (prepared slide of historic material).

#4 Post by Waltermicrofossil » Tue Jan 06, 2015 10:27 am

spectacular images, really good

JimT
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Re: Foraminifera (prepared slide of historic material).

#5 Post by JimT » Tue Jan 06, 2015 3:40 pm

I agree with lorez, a good history lesson. Where did you get the slide?

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gekko
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Re: Foraminifera (prepared slide of historic material).

#6 Post by gekko » Tue Jan 06, 2015 7:13 pm

lorez, seb, and Walter: Thank you very much for your kind remarks :) .
JimT: This is one of a set of four slides of historical material that I bought on eBay some time ago. If I manage to get acceptable images of the others, I'll post them.

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75RR
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Re: Foraminifera (prepared slide of historic material).

#7 Post by 75RR » Tue Jan 06, 2015 7:52 pm

Got me looking Foraminifera up on the internet. :)
Then I looked up Challenger Station!

http://www.foraminifera.eu/challenger338.php

http://www.nhm.ac.uk/nature-online/scie ... xpedition/

How large would the Foraminifera be?

Thanks for a most interesting thread.
Last edited by 75RR on Wed Jan 07, 2015 12:55 am, edited 1 time in total.
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gekko
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Re: Foraminifera [added another image with scale]

#8 Post by gekko » Tue Jan 06, 2015 11:49 pm

Thank you, 75RR, for your comments and for the very fascinating link! Below is an image of another part of the same slide [4x objective] to which I've added a scale bar to help answer your question about the size of the foraminifera (the same scale applies to the other two images):

Image
Last edited by gekko on Wed Jan 07, 2015 1:13 am, edited 2 times in total.

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75RR
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Re: Foraminifera (prepared slide of historic material).

#9 Post by 75RR » Wed Jan 07, 2015 1:11 am

Thank you, 75RR, for your comments and for the very fascinating link!
Just added another one to my previous post. You have the equivalent of Moon Rocks there!
Thanks for sharing.
Last edited by 75RR on Wed Jan 07, 2015 1:28 am, edited 1 time in total.
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gekko
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Re: Foraminifera (prepared slide of historic material).

#10 Post by gekko » Wed Jan 07, 2015 1:16 am

75RR wrote:
Thank you, 75RR, for your comments and for the very fascinating link!
Just added another one. You have the equivalent of Moon Rocks there!
Thanks for sharing.
Many thanks! :) Also, if anyone is interested in slide-mounting foraminifera, please Google "Brian Darnton" and you'll find much information.

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gekko
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Re: Foraminifera (prepared slide of historic material).

#11 Post by gekko » Wed Jan 07, 2015 2:34 am

75RR wrote:Just added another one to my previous post.
Wow! This second link that you added:
http://www.nhm.ac.uk/nature-online/scie ... xpedition/
is super! It gives a succinct explanation of (and feel for) the expedition. And especially the last item, the beautifully illustrated Report, is fantastic! Thank you!!! What one learns on this forum!

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Re: Foraminifera (prepared slide of historic material).

#12 Post by Manfred » Wed Jan 07, 2015 4:31 pm

Gekko,
excellent images - did you try do stack?
PS.: Last days I was very busy (Christmas holidays ...) but I hope to have time to upload some new pictures next time.
Warmest regards
Manfred

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gekko
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Re: Foraminifera (prepared slide of historic material).

#13 Post by gekko » Wed Jan 07, 2015 7:54 pm

Many thanks, Manfred. No, I did not use a stack, just single images. I hope you had a good Christmas and look forward to seeing more of your photomicrographs :) .

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gekko
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Re: Foraminifera (prepared slide of historic material).

#14 Post by gekko » Sun Feb 01, 2015 11:47 pm

I thought I'd add a picture of the slide itself:

Image

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75RR
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Re: Foraminifera (prepared slide of historic material).

#15 Post by 75RR » Mon Feb 02, 2015 12:00 am

Good idea. Context is everything.
At a very rough estimate, looking at a wall mounted World Map, I think Station 338 is somewhere off the Skeleton coast.
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