Talk:Ice Peak Formation

GA review

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

Nominator: Volcanoguy (talk · contribs) 01:06, 10 April 2025 (UTC)

Reviewer: I2Overcome (talk · contribs) 01:36, 1 October 2025 (UTC)

I will begin reviewing this article in the next few days as part of the October GAN backlog drive.

Discussion

Sorry for the delay; I was reviewing another article first that turned out to have more issues than I expected. I will begin reviewing this now.

Lead

• Ice Peak volcanic pile What this is does not appear to be explained. I₂Overcome ^talk 06:27, 4 October 2025 (UTC)

  On second look, I don't think this needs to be explained. I₂Overcome ^talk 01:01, 7 October 2025 (UTC)

History

• In 1988, Jack Souther mapped the IPF in more detail and the number of geological formations comprising the volcanic complex had dropped to 13; the Sheep Track and Kounugu formations had been reassigned... Using the past perfect here makes it sound like Souther discovered that something had changed prior to 1988. I suggest replacing "had" and "had been" with "was" and "were". I₂Overcome ^talk 06:27, 4 October 2025 (UTC)

  Done. Volcanoguy 16:40, 6 October 2025 (UTC)

Stratigraphy

• after the 3.1-million-year-old Spectrum Formation It's not clear if this is the most voluminous or the fourth-most voluminous formation of the MEVC, and I don't think it needs to be mentioned here regardless.

  Removed. Volcanoguy 23:05, 6 October 2025 (UTC)

• the youngest geological formation of the MEVC involving would be clearer as that involves or that contains, or something to that effect.

  Changed to that contains. I₂Overcome ^talk 01:01, 7 October 2025 (UTC)

Lithology

• containing a significant volume of rocks of intermediate composition Probably should make it "volcanic rocks" to match the structure of the next sentence

  Done. Volcanoguy 18:22, 6 October 2025 (UTC)

• hawaiite whereas needs a comma

  Added the comma. I₂Overcome ^talk 01:01, 7 October 2025 (UTC)

• but are → but they are

  Done. Volcanoguy 18:18, 6 October 2025 (UTC)

Ice Peak

• Highly irregular lava flows It might be helpful to explain what "highly irregular" means

  I can't since the source doesn't specify. Volcanoguy 19:43, 6 October 2025 (UTC)

  That's fine then. I₂Overcome ^talk 00:26, 7 October 2025 (UTC)

• irregular intrusions Same as above
• wide whereas tabular intrusions needs a comma, also not clear what "tabular" means

  Added the comma. Tabular should actually be fairly self-explanatory. I₂Overcome ^talk 01:01, 7 October 2025 (UTC)

• white recessive bands not clear what "recessive" means

  The dictionary definition for "recessive" is "tending to go, move, or slant back". In this case it could mean the bands are slanted but I'm not sure. I included "recessive" only because the source uses it. It's probably not important so I could remove it if necessary. Volcanoguy 23:24, 6 October 2025 (UTC)

  I'll leave it up to you. I₂Overcome ^talk 00:33, 7 October 2025 (UTC)

• periodic summit crater lake not clear what "periodic summit" means

  I'm not sure what is not clear here. It is stated earlier that Ice Peak is the western rim of a small caldera (crater) which formed on the summit of a stratovolcano. Volcanoguy 18:03, 6 October 2025 (UTC)

  I read it as meaning the summit itself was periodic (which didn’t make sense), as opposed to the lake. My mistake, but it might be clearer as a periodic crater lake at the summit. I₂Overcome ^talk 19:52, 6 October 2025 (UTC)

  Done. Volcanoguy 20:47, 6 October 2025 (UTC)

Camp Hill

• quenched lava lobes not clear what "quenched" means in this context

  I don't understand what isn't clear about it. Quenched lava is lava that has cooled suddenly. Volcanoguy 18:12, 6 October 2025 (UTC)

  It isn’t linked or explained in the article, so readers who didn’t know what quenched lava is (like myself) won’t understand it. But if it’s not practical to link or explain it, then that’s fine. It’s a complex subject; all of these "not clear" things are just nitpicks that might make the article understandable to a broader audience. I₂Overcome ^talk 20:04, 6 October 2025 (UTC)

• irregular lava flows see Ice Peak

Cache Hill

• several lava flows basaltic in composition add "that are" or rephrase as "with a basaltic composition"

  Done. Volcanoguy 17:19, 6 October 2025 (UTC)

• tabular feldspar phenocrysts see Ice Peak
• colour which needs comma

  Done. Volcanoguy 17:11, 6 October 2025 (UTC)

The Neck

• fine-grained foliated needs comma

  Done. Volcanoguy 16:44, 6 October 2025 (UTC)

• planar bodies not clear what this means

  Could link Plane (geometry), but not really necessary. I₂Overcome ^talk 01:01, 7 October 2025 (UTC)

• agglutinated needs to be defined or linked

  Added link. Volcanoguy 16:57, 6 October 2025 (UTC)

• tephra same as above I found this linked earlier in the article.

Lower assemblage

• Ice Peak volcanic pile See Lead (there are two instances of this in this section)
• thin columnar jointed unclear what this means, also may need commas and/or hyphenation depending on the intended meaning

  Changed to "thin, columnar-jointed". Volcanoguy 17:24, 6 October 2025 (UTC)

• These thin columnar jointed lava flows extend at least 16 km (9.9 mi) from the central vent in all directions with the exception of the southern flows which travelled south for only about 5 km (3.1 mi). May need to add commas or split sentence

  Done. Volcanoguy 17:40, 6 October 2025 (UTC)

• basal pillows I'm not quite sure what this means in this context

  "Basal" means "of, at, or forming the base" so pillows at the base of the lava flow. Volcanoguy 20:51, 6 October 2025 (UTC)

  Changed to "contains pillows at its base". Volcanoguy 20:56, 6 October 2025 (UTC)

Age

• large error → large margin of error?

  Done. Volcanoguy 17:15, 6 October 2025 (UTC)

• second oldest needs hyphen

  Done. Volcanoguy 16:43, 6 October 2025 (UTC)

• and are therefore considered unreliable → ; therefore the dates are considered unreliable or similar sentence split

  Done. Volcanoguy 16:48, 6 October 2025 (UTC)

I understand that it may not be possible or necessary to explain or link all of the "not clear" things above.

Spot checks

Note: I cannot spot-check Souther, Armstrong & Harakal 1984, Souther 1990, Spooner et al. 1995, Edwards 1997, or Smellie & Edwards 2016 due to lack of journal access or because they are books, so I will instead do a few spot-checks of Souther 1992, Souther 1988 (which is a map) and one of every other source.

• The Ice Peak Formation was first defined by Jack Souther, Richard Lee Armstrong and J. Harakal in 1984.[1]  Done
• The IPF is the seventh youngest unit of the MEVC and has a volume of 76.7 cubic kilometres (18.4 cubic miles), making it the fifth most voluminous geological formation of the MEVC after the 3.1-million-year-old Spectrum Formation. It is also the youngest geological formation of the MEVC involving more than 70 km3 (17 cu mi) of volcanic material.[6] The table shows it as the eighth-youngest formation, but since the Sheep Track formation was reassigned as a member of the Big Raven formation, it is now the seventh-youngest.  Done
• 57°41′26″N 130°38′08″W[7] Off by one second north according to the source (57°41'25"N)

  Fixed. Volcanoguy 16:47, 6 October 2025 (UTC)

• The upper assemblage is exposed along the Mess Creek Escarpment at the southwestern end of the Big Raven Plateau, along the north side of Sezill Creek valley at the western end of the plateau, at the head of valleys at the northwestern end of the plateau, at the southern end of Mount Edziza in the middle of the plateau, and on ridges east of Mount Edziza.[3][12]  Done
• In 1988, Jack Souther mapped the IPF in more detail and the number of geological formations comprising the volcanic complex had dropped to 13; the Sheep Track and Kounugu formations had been reassigned as members of the Big Raven and Nido formations, respectively, and are no longer recognized.[3][10][11]  Done
• Camp Hill is a small volcanic cone rising about 180 m (590 ft) above the southwestern portion of the Big Raven Plateau near the Mess Creek Escarpment. About 10 km (6.2 mi) to the southeast, the volcanic cone of Cache Hill rises about 120 m (390 ft) on a ridge between the Big Raven Plateau in the north and the Kitsu Plateau in the southwest.[23][24]  Done

That's all; everything looks great except for the minor things above. I will place this on hold until you can review these proposed changes.

Rate	Attribute	Review Comment
1. Well-written:
	1a. the prose is clear, concise, and understandable to an appropriately broad audience; spelling and grammar are correct.	see above, all significant issues addressed
	1b. it complies with the Manual of Style guidelines for lead sections, layout, words to watch, fiction, and list incorporation.	looks good
2. Verifiable with no original research, as shown by a source spot-check:
	2a. it contains a list of all references (sources of information), presented in accordance with the layout style guideline.	looks good
	2b. reliable sources are cited inline. All content that could reasonably be challenged, except for plot summaries and that which summarizes cited content elsewhere in the article, must be cited no later than the end of the paragraph (or line if the content is not in prose).	one tiny thing above (fixed)
	2c. it contains no original research.
	2d. it contains no copyright violations or plagiarism.	Earwig says violation unlikely with 20.6% similarity
3. Broad in its coverage:
	3a. it addresses the main aspects of the topic.	pretty comprehensive description of this geological formation
	3b. it stays focused on the topic without going into unnecessary detail (see summary style).	detail is not excessive for this subject
	4. Neutral: it represents viewpoints fairly and without editorial bias, giving due weight to each.	no issues
	5. Stable: it does not change significantly from day to day because of an ongoing edit war or content dispute.	Nominator is the only contributor to this article prior to the review
6. Illustrated, if possible, by media such as images, video, or audio:
	6a. media are tagged with their copyright statuses, and valid non-free use rationales are provided for non-free content.	no non-free images; all own work, public domain or CC licensed
	6b. media are relevant to the topic, and have suitable captions.	all images have suitable captions and are relevant
	7. Overall assessment.	Great article! Only minor issues with grammar and clarity and one typo, which have all been addressed.

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.