Talk:Barun Goyot Formation

Geology

This formation is "4 inches thick"..?! Really? Thanks. News you can use. You might as well say it's 4 miles thick. — Preceding unsigned comment added by 71.150.248.73 (talk) 05:27, 20 January 2014 (UTC)

Added the thickness in millimeters, if that helps...? MMartyniuk (talk) 11:48, 20 January 2014 (UTC)

Hermiin Tsav

Hi Hemiauchenia, you redirected Red Beds of Khermeen Tsav here, citing this paper[1], but as far as I can see, the Hermiin Tsav area corresponds to several formations, also including the Nemegt (and transitions between them)? I don't see the red beds mentioned seperately in that paper, but your edits to Catopsbaatar would imply that it only corresponds to Barun Goyot. I'm not sure about the details, s would be good to clarify (I think the info could be conveyed better at Catopsbaatar, but should go in detail under paleoecology). FunkMonk (talk) 20:14, 20 July 2020 (UTC)

Per the paper

The Hermiin Tsav section is a geographic outlier, tens of kilometers westsouthwest of the northern transect. It exposes about 150 m of section that overlaps with, but is mostly lower, stratigraphically, than the northern transect. The uppermost Hermiin Tsav section correlates with the lowermost Nemegt section, and also exhibits an interfingering contact between the Baruungoyot and Nemegt formations. The remaining section at Hermiin Tsav comprises sediments of the Baruungoyot Formation (135 m) that were deposited in alluvial fan, fluvial, paludal, lacustrine, and eolian environments, and can be divided into two informal members designated as lower and upper.

It is also repeatedly noted in the paper that the Nemegt formation is Gray-Tan in comparison to the underlying Barun Goyot Formation

In contrast, the Nemegt Formation comprises a stacked succession of light grey to tan colored alluvial channel, splay, and sheetflood deposits

In contrast to:

The Baruungoyot Formation comprises a stacked succession of tabular redbeds deposited in alluvial, lacustrine, and eolian environments by sheetfloods, meandering channels, floodplains, eolian mega-dunes, and as deflation lags.

The Hermiin Tsav localities that Catopsbataar is known from Khermeen Tsav II, Middle Red Beds and Khermeen Tsav I, Red Beds are clearly identifed as Barun Goyot, while the White beds are identified as Nemegt on PaleobioDB. Hemiauchenia (talk) 20:46, 20 July 2020 (UTC)

It's worth noting that there are several other papers that explicitly state that Khermeen Tsav I and II are part of the Barun Goyot Formation (see 1 2 for instance) Hemiauchenia (talk) 20:54, 20 July 2020 (UTC)

Interesting, I'm not sure PaleoDB is reliable enough to use as a source. I'll see if I can tweak the text in the Catopsbaatar article somehow to make it smoother... FunkMonk (talk) 20:41, 22 July 2020 (UTC)

I've done some rejigging of the text so that discussion of stratigraphy stays under paleoenvironment. FunkMonk (talk) 02:56, 15 August 2020 (UTC)

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