Talk:Gruta das Torres

DYK review observation

Observation ALT2 needs a bit of tweaking, maybe ALT2a... that the Gruta das Torres (part pictured) is a three-dimensional braided lava tube system, the longest in the Azores? Materialscientist (talk) 05:55, 11 December 2010 (UTC)

Hold on. Could you please state in the article the length and rank of this cave/tube (i.e. the 1st/2nd longest cave or tube)? Of the quoted 5 refs, only the 1st, but not others, gives an impression of reliable source; it mentions much shorter length and ranks it as the longest lava tube. What is its competitor in Azores, which is No1? Materialscientist (talk) 06:33, 11 December 2010 (UTC) Reply You are right about Reference 1 being more authentic. In this reference, the lava tube lengths are given first in the abstract, then in the pages 121, 126-129 (tables). In page 133, the total length is mentioned as 4000 m(including unmapped portion) for 1979. According to these pages, the Gruta das Torres in Pico Island is the longest lava tube of 3350 m length (also mentioned in the abstract) against 2713 m of Greta Des Balcos in Terciera Island, which is the the second longest. The total length of the Greta Des Balcos cave in Terciera Island is not given.

I will incorporate the lengths in the for Alt Hook 2a, if it you agree with the above data. Thanks.-- N.V.V. Char ^Talk . 13:55, 12 December 2010 (UTC)

I don't think length is crucial for the hook, but the article needs to provide information on the length and rank, referenced to reliable sources. We can't list all sources and say that the length is uncertain merely because these sources disagree - we need to select reliable ones (considering that research goes on and some data can be obsolete by now). Materialscientist (talk) 01:17, 13 December 2010 (UTC)

Length corrected everywhere as per reference 1.-- N.V.V. Char ^Talk . 02:14, 13 December 2010 (UTC)

Ref. 1 is from 1991, i.e. 20 years old, and speleology is a dynamic field. I've just started looking into the matter and found this reference claiming Gruta dos Balcões is about 5 km long and exceeds Gruta das Torres (though it depends which value we take for its length). That reference, in turn, is 6 years old .. Materialscientist (talk) 03:45, 13 December 2010 (UTC)

Thanks for finding that. Please correct and a different hook will have to be found. I'd say because of the fact the length is disputed it isn't strong enough for a hook.♦ Dr. Blofeld 12:22, 13 December 2010 (UTC) What exactly needs to be done here now to make it DYK worthy?♦ Dr. Blofeld 12:16, 14 December 2010 (UTC)

This ref [1] from 2005 makes an unequivocal statement, "Tourists will only be conducted through ~400 m of the cave; we saw a little more (Fig. 7), but still only a fraction of the total of over 5.2 km. This is the longest lava cave in the Azores and among the 20 or so longest in the world". This is a report on the '11th International Symposium on Vulcanospeleology' and associated field trips, so the same symposium that the other abstract comes from. That abstract is quite equivocal, with various 'if's and 'probably's in it. I view the Middleton ref as probably as good as we're going to get, in the absence of anything more definitive about the Balcoes cave, I don't know what others think. Mikenorton (talk) 20:45, 14 December 2010 (UTC)

Thanks for the additional information which clarifies the issue to clear the DYK hook.-- N.V.V. Char ^Talk . 07:56, 15 December 2010 (UTC)

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Commons files used on this page or its Wikidata item have been nominated for deletion

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• Gruta das Torres, Azores.png
• Gruta das Torres, Pico Island, Azores.png

Participate in the deletion discussion at the nomination page. —Community Tech bot (talk) 13:02, 23 January 2023 (UTC)