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Reviewer: Sainsf (talk · contribs) 17:56, 24 April 2016 (UTC)[reply]

Hi! Happy to review. Sainsf <^>Feel at home 17:56, 24 April 2016 (UTC)[reply]

Interesting article. Here are my comments:

  • Lead:
  • Perhaps volcano should be linked?
  • I think it would be good to add if the volcano is a active or dormant in the first line. Perhaps the 5 Mya fact too.
  • Geography and geology:
  • I believe the second line should come before the first.
  • When you begin with the main article, add that it is part of the Peruvian Andes.
  • 20 by 12 kilometres (12.4 mi × 7.5 mi) I think you can write {{convert|20|*|12|km|mi}} that gives 20×12 kilometres (12.4×7.5 mi) (× in both figures).
  • ice-filled crater 6,234 metres (20,453 ft) "at" 6,234 metres
  • have grown up above it I think "up" is not needed.
  • Link "tectonic".
  • Neighbouring volcanoes are the 5,498-metre ... lies 85 kilometres (53 mi) southeast. I think this part should go to the first para, that deals with the location of the volcano.
  • Ampato is linked twice.
  • Explain or link "double dome" and "caldera".
  • The bulk of the volcano was formed...Much of the volcano was formed by lavas. This paragraph has many short sentences.

Continuing with the rest of the article,

  • Volcanic history and future threat:
  • It would be preferable to use any one term, "mya" (would be better to link this to Mya (unit) at first mention) or "million years ago", throughout the article.
  • Coropuna is constructed on Tertiary ignimbrites that form the Puna, one of which is dated 14 mya. Around the volcano, these are completely buried. Could be combined.
  • What is "tephra"?
  • These flows are tens of meters thick Can we give a more precise measurement?
  • I think the term "warm spring" can be linked to hot spring.
  • A resulting sudden melting of the glaciers could endanger towns in the valleys Could be better reworded as "The consequent sudden melting of the glaciers..."
  • Duplicate links (linked more than once): K-Ar, lahar, Majes
  • Petrology:
  • "Andesite" here is a duplink, but you may wish to keep it here as it is relevant to the section.
  • Pyroxene and titanomagnetite are also found. ; Earlier andesites are more basic than later ones. Ignimbrites are rhyodacitic. Short sentences. You can combine them with earlier ones or shift their positions.
  • Link or explain "hydrothermal alteration".
  • Ice cap:
  • it is the second-largest tropical ice cap in the world Surely relevant enough to be mentioned in the lead?
  • What is "periglacial"?
  • Evidence of glaciation is present in the oldest stages of Coropuna volcanic activity Do you mean "There is evidence of glaciation during the oldest stages of Coropuna volcanic activity"?
  • Based on chlorine-36 accumulation "Chlorine-36", not "chlorine-36".
  • Link or explain "snowline".
  • "Holocene" is a duplink.
  • Link Inca here, not later.
  • building an irrigation system that drew water from the glaciers at 5,600 metres (18,400 ft) altitude, the highest irrigation system in the world Surely relevant enough to be mentioned in the lead?
  • The 5th para would be more prominent if sent to the last section. The last section could be renamed as "Significance to human beings".
  • Climate and vegetation:
  • Link plankton, Pacific Ocean, pollen, peat
  • Puna should be linked and introduced in an earlier section, where you say Coropuna is constructed on Tertiary ignimbrites that form the Puna.
  • Vegetation ends at 5,000 metres (16,000 ft) altitude "ends" may not look proper, you may say "Vegetation cover is too sparse by 5,000 metres (16,000 ft) altitude".
  • Cushion plants are also frequent at that altitude Which one, where there is hardly any vegetation or where the ichu grasses occur?
  • Religious and archaeological importance:
  • You can say "mountain spirit" near Apu, so that the readers don't have to chase links unless they want to know more. Such in-line explanations are often helpful.
  • The Inca sites are the highest ones, but Inca sites are also found next to bogs such as Maucta Llacta Could be better reworded as "The Inca sites are the highest ones, though some occur next to bogs such as Maucta Llacta".
  • Is Maucta Llacta a bog or an Inca site? Could be clearer.
  • from 2200 BP "2,200", to be consistent with the format used earlier.

I would be happy to promote this once the above points have been addressed. Good luck! Sainsf <^>Feel at home 04:10, 28 April 2016 (UTC)[reply]

  • I did merge the two sentences on ignimbrites together but I am kind of unexcited by the result; any advice?
  • Would you be happy if I use a semicolon here and rejig it a bit, so that it reads: Puna (one of which is dated 14 million years); these are completely buried around the volcano?
  • The source I checked did not indicate the full thickness of these lava flows; maybe it's on one of the latter pages but that book's a behemot. I'll see if I can find anything.
  • No rush, the article is not really lacking on this just now.
  • Left the "andesite" duplink in per your suggestion.
  • Fine.
  • I did rearrange the short sentences a bit; is that better?
  • Thanks, it's lots better.
  • Sure about that chlorine-36 capitalization question?
  • Sorry, I am wrong here. I think I have seen it in caps as well as non-caps in places, but let's stick to one style in this article.
  • Not sure about moving the ice core paragraph since it's only tangentially related to human activity.
  • I meant the Inca paragraph, not the ice core one (it's sixth).
  • Linked the first mention of "Puna", I think the longer explanation should be in the vegetation section. Second opinion needed though.
  • That would be a FA-level point, we need not be too precise for a GA.
  • The source about the vegetation altitude says that vegetation is absent, so changing that would be incorrect.
  • Alright, let's keep it.

I think everything else is done.Jo-Jo Eumerus (talk, contributions) 20:10, 28 April 2016 (UTC)[reply]

Thanks for the replies, Jo-Jo Eumerus. Getting there! Sainsf <^>Feel at home 03:52, 30 April 2016 (UTC)[reply]
  • @Sainsf: OK on that rewrite around "14 million years" so as long as text-source integrity is maintained, which it is. I didn't find anything about the thickness of the Holocene lava flows. For the Inca irrigation thing, I am fine with moving that sentence but I am a bit uncertain on the other information as it's closely tied to the glaciers. Anything else that needs fine-tuning? Jo-Jo Eumerus (talk, contributions) 13:50, 30 April 2016 (UTC)[reply]
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