Talk:Sabancaya

GA Review

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

Reviewer: Mike Christie (talk · contribs) 12:00, 22 February 2018 (UTC)

I'll review this. Mike Christie (talk - contribs - library) 12:00, 22 February 2018 (UTC)

I'll copyedit as I go; please revert any mistakes.

• It includes a number of volcanoes, some of which like Huaynaputina have had large eruptions and others such as Sabancaya and Ubinas have been active in historical time: needs rephrasing; the context is intended to be the CVZ, but as it stands "It" refers to Sabancaya.

Fixed.

• Moraines at elevations of 4,450–4,250 metres (14,600–13,940 ft) above sea level testify to the occurrence of more extensive glaciation during the last ice age between 25,000 and 17,000 years before present, they have diverted some lava flows: does this mean that these glaciations diverted some lava flows, or that the moraines did so?

Remedied.

• at temperatures of 990–920 °C (1,814–1,688 °F): it's usual to give this sort of range in ascending order of values.

Changed.

• The presence of an ice cap is an additional source of danger, as their melting: singular "ice cap", so you can't have plural "their".

Changed.

-- Mike Christie (talk - contribs - library) 13:19, 22 February 2018 (UTC)

Tweaked one point; otherwise looks good. Promoting. Mike Christie (talk - contribs - library) 22:56, 22 February 2018 (UTC)

How to format INGEMMET citations

Currently INGEMMET webpages (e.g this one) show two parameters "Serie" and "Aparece en las colecciones: "; which one of these should be put in the series parameter? Jo-Jo Eumerus (talk) 15:03, 10 December 2023 (UTC)

A similar question about the "Publicado por" parameter - does it mean "publisher" or merely the entity commissioning the publication? Jo-Jo Eumerus (talk) 15:25, 10 December 2023 (UTC)

GA Reassessment

Sabancaya

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

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Article (edit | visual edit | history) · Article talk (edit | history) · Watch • Watch article reassessment page • Most recent review

Result: No violations of the criteria apparent. ~~ AirshipJungleman29 (talk) 01:11, 19 December 2023 (UTC)

I just notably expanded/rewrote the article, so it might need a re-assessment. I am especially unsatisfied with the prose, which is overly wordy. I'd like to present it to FAC in the future, so this needs to be tip-top. Jo-Jo Eumerus (talk) 17:32, 10 December 2023 (UTC)

I mean, keeping in mind that GAR isn't PR and is really meant to assess if egregious violations of the GA criteria can be fixed, I think you're fine. About the most wordy sentence in the article is The flanks of Sabancaya themselves include roads and a major power line that comes from the Mantaro Power Plant [es] and delivers electricity to southern Peru; all of these could be threatened in an eruption.; it's still perfectly understandable, if a little verbose. ~~ AirshipJungleman29 (talk) 06:28, 13 December 2023 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

ChatGPT lead

ChatGPT proposes the following lead, if anyone's interested: Sabancaya is a highly active stratovolcano located in southern Peru, approximately 80 km northwest of Arequipa and 30 km southwest of Chivay. The name "Sabancaya" comes from Quechua and means “tongue of fire” or “spitting volcano,” referencing its eruptive nature, with records of activity dating back to 1595. It forms a volcanic complex with the neighboring peaks Ampato and Hualca Hualca, lying within the Central Volcanic Zone of the Andes, a region shaped by the subduction of the Nazca Plate beneath the South American Plate. The volcano rises to nearly 6,000 meters and is characterized by steep upper slopes, lava domes, and a summit crater. Its flanks are covered with over 40 Holocene lava flows, and despite its ice cap, lava structures remain visible. The volcano’s structure includes twin domes (Sabancaya I and II), a summit crater, and parasitic vents. Most of its construction postdates the last ice age, and glacial evidence in the region reflects historical climate changes. Geologically, Sabancaya lies above ancient Precambrian rocks and younger Neogene volcanic deposits forming a “volcanic foot.” Its eruptions produce andesitic and dacitic lava, rich in potassium and formed by magma mixing and fractional crystallization. The magma source lies beneath the nearby Hualca Hualca volcano, with magma movement causing surface uplift and seismic swarms. The volcano is a major emitter of volcanic gases such as sulfur dioxide and water vapor, contributing to regional air pollution and atmospheric changes. Sabancaya has had several eruptive phases since the Holocene, primarily effusive early on, with more explosive activity in recent centuries. Notably active since 1986, it experienced a major eruption in 1990, followed by persistent low-volume Vulcanian eruptions. A resurgence of activity began in 2013 and has continued through at least 2024, including the formation and destruction of multiple lava domes within the crater. Sabancaya poses significant hazards to surrounding communities, especially in the Colca Valley, where tens of thousands live. Potential dangers include pyroclastic flows, lahars from melting ice, ashfall affecting agriculture and health, and damage to infrastructure such as irrigation systems and power lines. Monitoring efforts, led by the Southern Volcano Observatory and Peruvian Volcanological Observatory, include seismic, gas, and satellite data collection. Hazard maps have been published, identifying areas at risk from various volcanic threats. Despite these dangers, the region also supports agriculture, tourism, and geothermal potential. The volcano holds cultural significance as an apu, or mountain deity, and features prominently in local heritage and tourism. Jo-Jo Eumerus (talk) 09:28, 7 May 2025 (UTC)

Pre-FAC review

So, this article is a bit of a hassle to write because INGEMMET publishes lots of reports with very little new information, but I wonder if there is anything that could be added, rewritten, or otherwise changed? @Kusma, Noleander, Generalissima, Wehwalt, and MSincccc: Jo-Jo Eumerus (talk) 07:01, 8 May 2025 (UTC)