Talk:Incapillo

Spelling

Inka Pillu is the correct spelling of the Quechua term. It should appear in the text adding a reference (relevant dictionary). This information does not belong to the geography section. -- CaTi0604 (talk) 05:41, 16 June 2016 (UTC)

• Not sure where else it would belong, other than in the lead maybe.Jo-Jo Eumerus (talk, contributions) 09:25, 16 June 2016 (UTC)

GA Review

This review is transcluded from Talk:Incapillo/GA1. The edit link for this section can be used to add comments to the review.

Reviewer: Sainsf (talk · contribs) 07:01, 22 June 2016 (UTC)

Will review. Sainsf (talk · contribs) 07:01, 22 June 2016 (UTC)

General

• No copyvio/dablink/external link issues
• No caption for the one image in the article? (not the infobox ones)

Lead

• Mind adding a few words on what a caldera is?

Geography and structure

• Wikilink caldera
• also known as Bonete caldera Should go to the 1st para, where you discuss the etymology

Geology

• Wikilink Nazca plate, isotope
• Wood et al. in 1987 Not the way we usually write things here. You can say "a 1997 study" or "Wood and colleagues in 1997" (but then you should give the full name of Wood and add who he is).

Climate, hydrology and vegetation

• Does "grass" really need a link?

History

• "mafic" is a duplink
• "distal" may be a tough term
• comparable to the Katmai ignimbrite ..."that of" the Katmai...
• What are "Aeolian effects"?

Rest looks good. Sainsf (talk · contribs) 08:19, 22 June 2016 (UTC)

• @Sainsf: I think I got all issues. I did opt to expand the cite information from these sources, they don't indicate the full names or professions though.Jo-Jo Eumerus (talk, contributions) 08:55, 22 June 2016 (UTC)

• Thanks. Just add who these people are. Geologists? Sainsf (talk · contribs) 08:59, 22 June 2016 (UTC)

  Maybe. I've tried a somewhat different approach as the sourcing issue was giving me a headache.Jo-Jo Eumerus (talk, contributions) 09:39, 22 June 2016 (UTC)

Thanks, this can now be promoted. Sainsf (talk · contribs) 09:42, 22 June 2016 (UTC)

Cerro Bonete Grande

Cerro Bonete Grande is a redlink. Did you mean to link it to Cerro Bonete like you did with Cerro Bonete Chico? Morfusmax (talk) 21:46, 29 June 2016 (UTC)

• Nah, there are two mountains named Cerro Bonete Grande and Cerro Bonete Chico. CBC is the taller mountain and on Wikipedia under the name Cerro Bonete. CBG doesn't have an article yet on this Wikipedia hence it's a redlink.Jo-Jo Eumerus (talk, contributions) 21:54, 29 June 2016 (UTC)

Review

Hi Jo-Jo, see my comments below:

Introduction

• "Subduction of the Nazca Plate beneath the South America plate" → "Subduction of the Nazca Plate beneath the South American Plate".

Geography and structure

• "The three adjacent volcanic centres of Monte Pissis (6,882 metres (22,579 ft)), Cerro Bonete Grande (6,436 metres (21,115 ft)), and Cerro Bonete Chico (6,759 metres (22,175 ft)) are also considered part of this volcanic complex and are among the highest on Earth." Would it be better if "this volcanic complex" was changed to "the Incapillo volcanic complex"?

• "These centres surround the ignimbrite and lava domes." I assume this is the Incapillo ignimbrite? The lead mentions two ignimbrites: the Incapillo ignimbrite and the Katmai ignimbrite.

• "Around the caldera lie 40 lava domes, distributed in a northwest-southeast pattern." Would it be better if this sentence was reworded to "Surrounding the caldera are 40 lava domes, distributed in a northwest-southeast pattern."?

• "The domes have heights of 100–600 metres (330–1,970 ft), many feature a basal apron of about 1 kilometre (0.62 mi) width consisting of erosional material." Would it be better if this sentence was reworded to "The domes have heights of 100–600 metres (330–1,970 ft), many of which feature a basal apron about 1 kilometre (0.62 mi) wide consisting of erosional material."?

• "This 350 metres (1,150 ft) or 13 metres (43 ft) deep lake" → This 350-metre (1,150 ft) or 13-metre (43 ft) deep lake

Geology

• "The Nazca plate subducts beneath the South America plate" → "The Nazca Plate subducts beneath the South American Plate".

• "The subduction results in volcanism along the occidental Cordillera 240–300 kilometres (150–190 mi) east of the trench formed by the subduction." I'm guessing "occidental" should be capitalized since Cordillera Occidental is a proper name.

• "About 50 kilometres (31 mi) west of Incapillo lies the Maricunga Belt, where volcanism started 27 mya and involved phases of ignimbritic and stratovolcanic activity, including Copiapo volcano, until activity ceased with the last eruption of Nevado de Jotabeche 6 mya." It would probably be better to the general reader if 27 mya and 6 mya were spelled out (i.e. million years ago instead of mya).

Local

• "Incapillo is on a 70 kilometres (43 mi) thick crust, among the thickest in volcanic regions of the Earth." → "Incapillo is on 70-kilometre (43 mi) thick crust, among the thickest in volcanic regions of the Earth."

• "At the latitude of Incapillo, the Nazca plate subducting beneath the South America plate abruptly shallows towards the south." This should probably be "At the latitude of Incapillo, subduction of the Nazca Plate beneath the South American Plate abruptly shallows towards the south."

• "Incapillo is part of a volcanic system active between 3.5 and 2 mya that includes Ojos del Salado and Nevado Tres Cruces." See above.

• "Another volcanic trend considers Incapillo as part of a northeast–southwest trend with Cerro Galan and Cerro Blanco." What is meant by "volcanic trend" at the start of this sentence? From what I understand, a volcanic trend is a line of volcanoes but how does a line of volcanoes consider anything?

• "The formation of the older lava domes may have been influenced by buried faults or the supply systems of the older Pissis and Bonete Chico volcanoes." What older lava domes?

  These of Incapillo. Jo-Jo Eumerus (talk) 05:57, 20 July 2023 (UTC)

History

• "Activity at Incapillo commenced shortly after the end of the Maricunga Belt volcanism and occurred first at Monte Pissis between 6.5 and 3.5 mya." See above.

• "Later volcanism occurred south of Incapillo 4.7±0.5 mya, at Sierra de Veladero 5.6±1–3.6±0.5 mya, and in the region of Cerro Bonete Chico 5.2±0.6–3.5±0.1 mya." Plus and minus symbols are normally spaced rather than grouped together.

• "Some of the 3–2 mya Pircas Negras mafic andesites appear to be associated with the Incapillo volcanic complex." See above.

• "Specific ages of the Pircas Negras flows in the Incapillo region include 4.7±0.5 mya, 3.2±0.3 mya and 1.9±0.2 mya." See above.

• "Later, andesitic-rhyolitic volcanism formed ignimbrites and lava domes 2.9±0.4–1.1±0.4 mya, with the youngest pre-caldera dome being 0.873±0.077 mya old." See above.

• "Thicknesses range from 250 to 10 metres (820 to 33 ft); the ignimbrite is underlain by a lithic-and-ash rich surge deposit with a thickness of 5 centimetres (2.0 in)." Should 250 to 10 metres (820 to 33 ft) be 10 to 250 metres (33 to 820 ft)?

• "Ages have been found of 0.52 ± 0.03 and 0.51 ± 0.04 mya ago." Maybe "Ages of 0.52 ± 0.03 and 0.51 ± 0.04 million years have been found."?

• "It is a rhyodacitic to rhyolitic ignimbrite with a high crystal and pumice and low lithic content." How about "It is a rhyodacitic to rhyolitic ignimbrite with high crystal and pumice content and low lithic content."?

• "The debris flow does have a different composition from the main Incapillo ignimbrite, as it contains red-brown dacite and clasts." I would slightly reword it to "The debris flow has a different composition from the main Incapillo ignimbrite as it contains red-brown dacite and clasts."

• "It has a massive ungraded composition and is likely a lahar or debris flow deposit, probably influenced by glacial or crater lake water." It has already been claimed in previous sentences that Veladero is a debris flow. Is it necessary to claim this again?

  I don't think that we have already said it was a lahar or glacial thing? Jo-Jo Eumerus (talk) 05:57, 20 July 2023 (UTC)

  No. Volcanoguy 14:16, 20 July 2023 (UTC)

• "There are no dates available for post-caldera lava domes, which probably arose from magma ascending through the caldera forming conduits, seeing as these domes are found only inside the caldera." Hyphen between caldera and forming.

On a side note it would probably be better if the History section had a more precise title, something like Volcanic history. History can refer to a lot of things. Volcanoguy 22:12, 19 July 2023 (UTC)

Did most of the changes. Jo-Jo Eumerus (talk) 05:57, 20 July 2023 (UTC)

All images need alt texts. Volcanoguy 14:17, 20 July 2023 (UTC)

Done. Jo-Jo Eumerus (talk) 19:03, 20 July 2023 (UTC)

I'm thinking the Geologic history section would be better as a subsection of Geology since it's describing geology? Volcanoguy 22:49, 20 July 2023 (UTC)

In most articles, they are considered separate. Jo-Jo Eumerus (talk) 05:51, 21 July 2023 (UTC)

I'm not aware of a guideline claiming articles should be structured the same as other articles. Geologic history is a subtopic of geology and thus would make more sense as a subsection of that topic. Volcanoguy 12:40, 21 July 2023 (UTC)

I don't think this requires a guideline. It's just a writing choice, and I find keeping the eruption history separate from the geology eminently reasonable. Jo-Jo Eumerus (talk) 14:16, 21 July 2023 (UTC)

Review SG

• I'm having a hard time on the Cerros Bonetes. Everything I can find on the internet (dubious reliability) indicates that there are four Cerro Bonetes in Argentina. We seem to agree on Cerro Bonete Chico, but all (hiking and mountaineering) sites seem to have Cerro Bonete Grande at around 5900 meters. We have it at 6400, and I can't read that source. But several mountaineering sites say Bonete Grande is smaller than Bonete Chico ... ??? SandyGeorgia (Talk) 00:59, 28 July 2023 (UTC)

  Yes, apparently Bonete Chico is higher than Bonete Grande. I figure the elevation uncertainty stems from the fact that mountain elevations are often uncertain, and these are not well travelled mountains. That and Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)

• This could use some linking (quaternary) and repeat linking (I believe MOS was recently modified to encourage repeat links in the first section after the lead). Incapillo is part of the Andean Central Volcanic Zone, which extends through the countries of Chile, Bolivia, and Argentina and includes six or more Quaternary caldera or ignimbrite systems, ... I suggest relinking the Andean Central Volcanic Zone, quaternary, and ignimbrite. SandyGeorgia (Talk) 01:08, 28 July 2023 (UTC)

  Done. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)

• Re-Link Pleistocene and stratovolcano in first section? SandyGeorgia (Talk) 01:12, 28 July 2023 (UTC)

  Done. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)

• This is weird:
  • Incapillo is a caldera with a diameter of 5 by 6 kilometres (3.1 mi × 3.7 mi) and lies at an elevation of 5,750 metres (18,860 ft)[1] or 5,386 metres (17,671 ft).[6]
    • Because there is disagreement? Or because there is a range depending on which part is being measured? If that, can be it be expressed as
      • Incapillo is a caldera with a diameter of 5 by 6 kilometres (3.1 mi × 3.7 mi). Its elevation is between 5,386 metres (17,671 ft)[6] and 5,750 metres (18,860 ft).[1] SandyGeorgia (Talk) 01:15, 28 July 2023 (UTC)
        • There is disagreement, yes. Rather common in such rarely travelled areas. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)
• Group of what? Lava domes ? Spell it out?
  • There is an eastern group between Monte Pissis and Cerro Bonete Chico and a western one on the Sierra de Veladero. SandyGeorgia (Talk) 01:18, 28 July 2023 (UTC)
    • Specified. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)
• This is a snake that needs chopping. I can't figure out what it means (why two different sets of numbers), and it is way too much information in one sentence. It might want to be three sentences, but I'm unsure what it is saying.
  • This 350-metre (1,150 ft) or 13-metre (43 ft) deep lake at 5,300 metres (17,400 ft) or 5,495 metres (18,028 ft) altitude measures 2 by 1 kilometre (1.24 mi × 0.62 mi),3.34 square kilometres (334 ha)[20][21] or 1.8 square kilometres (0.69 sq mi)[6] and is considered to be the highest navigable lake in the world.[22] SandyGeorgia (Talk) 01:23, 28 July 2023 (UTC)
    • Sigh. The problem here is that there is too much disagreement between sources; I've rewritten. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)
• What changes?
  • The changes occurred at the same time as the arc migrated eastward, ... SandyGeorgia (Talk) 01:42, 28 July 2023 (UTC)
    • Explained. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)
• This is begging for expansion:
  • and the crater is marketed as an area of touristic interest.[8] SandyGeorgia (Talk) 01:52, 28 July 2023 (UTC)
    • The source doesn't give a lot more information, alas. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)

  Not sure about this source (a radio station), but this is pretty interesting ... A scuba diving record there! El destino de buceo más exótico se encuentra en La Rioja, en la laguna “Inca Pillo” (5350 msnm) que conforma el Cráter Corona del Inca, emplazado en medio de una zona de volcanes. En ésta laguna se obtuvo el récord mundial de buceo en altura. La misma tiene aprox. 2 km de diámetro y una profundidad de 300 m. [1] SandyGeorgia (Talk) 02:10, 28 July 2023 (UTC)

  Same from Clarin: https://www.clarin.com/viajes/mejores-9-lugares-bucear-argentina-n0t4l0n4t41l_0_Yf_1ku8Fh.html En La Rioja está uno de los destinos más exóticos. Es la laguna Inca Pillo, situada a 5.350 metros sobre el nivel del mar, en medio de una zona de volcanes. En ella se obtuvo el récord mundial de buceo en altura. Tiene unos dos kilómetros de diámetro y 300 metros de profundidad. SandyGeorgia (Talk) 02:15, 28 July 2023 (UTC)

  Interesting, certainly ... but Licancabur Lake is the actual record-holder. Great example of why one shouldn't use newspapers as sources. Jo-Jo Eumerus (talk) 07:46, 28 July 2023 (UTC)

  Oopsie :) SandyGeorgia (Talk) 08:41, 28 July 2023 (UTC)

  But maybe mention that scuba diving is one of the tourist activities in the area? SandyGeorgia (Talk) 08:42, 28 July 2023 (UTC)

  Is it a tourist activity at Incapillo? Just because it happened once doesn't mean it's a common activity. Jo-Jo Eumerus (talk) 16:19, 28 July 2023 (UTC)

Done, SandyGeorgia (Talk) 02:20, 28 July 2023 (UTC)

Hey, anything else that jumps out SandyGeorgia? JoJo Eumerus mobile (main talk) 06:35, 2 September 2023 (UTC)