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[ https://www.researchgate.net/profile/Birgit-Niebuhr-2/publication/233590854_On_the_age_of_the_Upper_Cretaceous_transgression_between_Regensburg_and_Neuburg_an_der_Donau_Bavaria_southern_Germany/links/6019277692851c2d4d0dcd2e/On-the-age-of-the-Upper-Cretaceous-transgression-between-Regensburg-and-Neuburg-an-der-Donau-Bavaria-southern-Germany.pdf On the age of the Upper Cretaceous transgression between Regensburg and Neuburg an der Donau (Bavaria, southern Germany)] Discusses the Wellheim formation in some detail. Hemiauchenia ( talk) 15:24, 13 August 2021 (UTC)
I created this draft as a result of
this discussion, which came from
this deletion debate.
Related drafts and articles:
Draft:Hoffmann Mineral,
Neuburg siliceous earth --
ΟΥΤΙΣ (
talk) 10:58, 15 August 2021 (UTC)
For clarification: I transferred Paul H.'s editorial note from his previous work on Draft:Siliceous earth. (Which I forgot to mention in my previous entry, sorry.) -- ΟΥΤΙΣ ( talk) 11:00, 15 August 2021 (UTC)
I am now transferring said ed note here:
Exact definitions might become an issue later on, so your results should be preserved here, but not neccessarily within the article text, I think.
For purposes of commerce, especially when comes import - export regulations and tariffs, siliceous earths are also classified as either "siliceous fossil meals" or "siliceous meals." Despite the abundant usage of both terms, I have yet to find specific definition of either term. -editorial note by Paul H.
-- ΟΥΤΙΣ ( talk) 17:30, 15 August 2021 (UTC)
We need to be careful with the weight that is being given to the mining companies claims. The entirety of the geologic liturature on/related to the Wellheim Formation seems to rather regularly downplay or falsify the claims the company has made in older statements. -- Kev min § 16:23, 16 August 2021 (UTC)
This currently has "open pit mines in Wellheimer, Germany".
Did you mean
Wellheim or the
Wellheim Dry Valley , perhaps? --
ΟΥΤΙΣ (
talk) 08:33, 17 August 2021 (UTC)
Paul H., I think this was your edit. Would you please clarify what you meant there? --
ΟΥΤΙΣ (
talk) 04:29, 20 August 2021 (UTC)
Would someone be so kind and look what Römpp has to say about "Neuburger Kieselerde" exactly? (see
sources list: Groteklaes, Michael (ed.), 2015)
My
Wikipedia Library card has been deactivated as I am currently blocked on the German Wiki (ArbCom trial on-going) and I can't access Römpp, as it is paywalled with a small preview only. Thank you very much. --
ΟΥΤΙΣ (
talk) 05:18, 20 August 2021 (UTC)
Ah yes, and to defend my previous use of the source, I say that I only used the part of the text that is freely visible in their preview. (Namely, the definition of Kieselerde being composed of kieselgur, which is defined as having a biogenic origin.) -- ΟΥΤΙΣ ( talk) 05:49, 20 August 2021 (UTC)
“ | This member's formation involved a mixture of biogenic and mineral processes:
First, biogenic
limestone, containing
sponge spicules, was decalcified (and thus mineralized) over millions of years (during the [geo era]), forming a partly hollow
karst formation.
Later, (during the [geo era]) marine sediments (mostly dead
diatoms) were deposited into the spicule hollows. Even later, those sediment deposits were also mineralized into alterite rock. |
” |
— ΟΥΤΙΣ |
“ | === Biogenic vs. mineral origin ===
The Neuburg Kieselerde Member has a complex formation history (see above). The original, karst-forming limestone had a biogenic origin itself, before it was decalcified (and thus mineralized) over millions of years (name geo era). While it was submerged in an ocean (name geo era), pelagic sediment was deposited into the hollows formerly occupied by sponge spicules, bringing fresh biogenic material, as it consisted mainly of the remains of dead diatoms. This new material was then itself mineralized (name geo era) into alterite rock. It thus has mineral as well as biogenic origins. The sole exploiting company of the Neuburg Kieselerde Member has repeatedly issued claims that they are selling a purely mineral product with a purely mineral origin. Such claims are occassionally repeated in other sources, [b] however that position has not been supported by mainstream geologic research. |
” |
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||
|
[ https://www.researchgate.net/profile/Birgit-Niebuhr-2/publication/233590854_On_the_age_of_the_Upper_Cretaceous_transgression_between_Regensburg_and_Neuburg_an_der_Donau_Bavaria_southern_Germany/links/6019277692851c2d4d0dcd2e/On-the-age-of-the-Upper-Cretaceous-transgression-between-Regensburg-and-Neuburg-an-der-Donau-Bavaria-southern-Germany.pdf On the age of the Upper Cretaceous transgression between Regensburg and Neuburg an der Donau (Bavaria, southern Germany)] Discusses the Wellheim formation in some detail. Hemiauchenia ( talk) 15:24, 13 August 2021 (UTC)
I created this draft as a result of
this discussion, which came from
this deletion debate.
Related drafts and articles:
Draft:Hoffmann Mineral,
Neuburg siliceous earth --
ΟΥΤΙΣ (
talk) 10:58, 15 August 2021 (UTC)
For clarification: I transferred Paul H.'s editorial note from his previous work on Draft:Siliceous earth. (Which I forgot to mention in my previous entry, sorry.) -- ΟΥΤΙΣ ( talk) 11:00, 15 August 2021 (UTC)
I am now transferring said ed note here:
Exact definitions might become an issue later on, so your results should be preserved here, but not neccessarily within the article text, I think.
For purposes of commerce, especially when comes import - export regulations and tariffs, siliceous earths are also classified as either "siliceous fossil meals" or "siliceous meals." Despite the abundant usage of both terms, I have yet to find specific definition of either term. -editorial note by Paul H.
-- ΟΥΤΙΣ ( talk) 17:30, 15 August 2021 (UTC)
We need to be careful with the weight that is being given to the mining companies claims. The entirety of the geologic liturature on/related to the Wellheim Formation seems to rather regularly downplay or falsify the claims the company has made in older statements. -- Kev min § 16:23, 16 August 2021 (UTC)
This currently has "open pit mines in Wellheimer, Germany".
Did you mean
Wellheim or the
Wellheim Dry Valley , perhaps? --
ΟΥΤΙΣ (
talk) 08:33, 17 August 2021 (UTC)
Paul H., I think this was your edit. Would you please clarify what you meant there? --
ΟΥΤΙΣ (
talk) 04:29, 20 August 2021 (UTC)
Would someone be so kind and look what Römpp has to say about "Neuburger Kieselerde" exactly? (see
sources list: Groteklaes, Michael (ed.), 2015)
My
Wikipedia Library card has been deactivated as I am currently blocked on the German Wiki (ArbCom trial on-going) and I can't access Römpp, as it is paywalled with a small preview only. Thank you very much. --
ΟΥΤΙΣ (
talk) 05:18, 20 August 2021 (UTC)
Ah yes, and to defend my previous use of the source, I say that I only used the part of the text that is freely visible in their preview. (Namely, the definition of Kieselerde being composed of kieselgur, which is defined as having a biogenic origin.) -- ΟΥΤΙΣ ( talk) 05:49, 20 August 2021 (UTC)
“ | This member's formation involved a mixture of biogenic and mineral processes:
First, biogenic
limestone, containing
sponge spicules, was decalcified (and thus mineralized) over millions of years (during the [geo era]), forming a partly hollow
karst formation.
Later, (during the [geo era]) marine sediments (mostly dead
diatoms) were deposited into the spicule hollows. Even later, those sediment deposits were also mineralized into alterite rock. |
” |
— ΟΥΤΙΣ |
“ | === Biogenic vs. mineral origin ===
The Neuburg Kieselerde Member has a complex formation history (see above). The original, karst-forming limestone had a biogenic origin itself, before it was decalcified (and thus mineralized) over millions of years (name geo era). While it was submerged in an ocean (name geo era), pelagic sediment was deposited into the hollows formerly occupied by sponge spicules, bringing fresh biogenic material, as it consisted mainly of the remains of dead diatoms. This new material was then itself mineralized (name geo era) into alterite rock. It thus has mineral as well as biogenic origins. The sole exploiting company of the Neuburg Kieselerde Member has repeatedly issued claims that they are selling a purely mineral product with a purely mineral origin. Such claims are occassionally repeated in other sources, [b] however that position has not been supported by mainstream geologic research. |
” |