Talk:Altiplano–Puna volcanic complex

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A fact from Altiplano–Puna volcanic complex appeared on Wikipedia's Main Page in the Did you know column on 20 September 2015 (check views). The text of the entry was as follows: Did you know... that the ignimbrites of the Altiplano–Puna volcanic complex have volumes of at least 15,000 cubic kilometres? A record of the entry may be seen at Wikipedia:Recent additions/2015/September. The nomination discussion and review may be seen at Template:Did you know nominations/Altiplano-Puna volcanic complex.

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The phrase Accelerated rifting at the East Pacific Rise about 12-10 mya resulted in more rapid subduction and higher melt generation is somewhat contradictory as it is not "rifting" that drives subduction (rather scientists suggests its the other way round). Also the word "rifting" (increasing rifting) is not the usual way to refer to refer to to what happens at well-developed divergent boundaries. I suggest to use the word "divergence" (increasing divergence). —Lappspira (talk) 15:00, 2 September 2015 (UTC)[reply]

@Lappspira:: Changed to "divergence". Dunno how to integrate that other information; the source plainly says "resulted". Jo-Jo Eumerus (talk, contributions) 15:09, 2 September 2015 (UTC)[reply]

The source (Silva, 1989) says (bold is mine):

Furthermore, at this time extremely rapid spreading at the present-day East Pacific Rise (Larson and Pitman, 1972) resulted in a faster rate of subduction at the Andean margin (Pardo-Casas arid Molnar, 1987), which in turn may have resulted ¡ n increased heat input (intrusion of mafic magmas) to the crust.

So apparently the source got it wrong. No sure if it is the authors faulty reasoning or if in 1989 subduction mechanisms were not well understood. I suggest finding a more recent source for the subduction tectonics. Lappspira (talk) 15:29, 2 September 2015 (UTC)[reply]

Hum. Apparently, according to older and more recent research the main thing that happened there was a steepening of the subduction. I also found some fairly contradictory data on the subduction speed. I've put in this information on the steepening. Jo-Jo Eumerus (talk, contributions) 19:33, 2 September 2015 (UTC)[reply]

Some of the material on https://scholar.google.ch/scholar?as_ylo=2016&q=%22Altiplano%E2%80%93Puna+volcanic+complex%22&hl=de&as_sdt=1,5 could be used to expand the article. Jo-Jo Eumerus (talk, contributions) 15:20, 9 October 2016 (UTC)[reply]

https://www-nature-com.wikipedialibrary.idm.oclc.org/articles/s43247-023-00744-2 and https://agupubs-onlinelibrary-wiley-com.wikipedialibrary.idm.oclc.org/doi/10.1029/2022GC010732 Jo-Jo Eumerus (talk) 15:31, 30 November 2023 (UTC)[reply]