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"Limalok lies southeast of Eniwetok which rise above sea level and Lo-En is almost connected to it through a ridge." - Think it should be "which rises". Might also add a comma before "and Lo-En"
"the seamount was submerged by Turonian times" - "submerged by" makes it read like the "times" were responsible for it going underwater. I think you should rephrase to make this read a bit more clearly for non-native English speakers
"Lo-En is a reference to the hibiscus tree.[2]" - how so? You should state that explicitly in the text
The source isn't terribly detailed and as far as I can tell it is the only one on Google that discusses the name at all. I get the impression that Marshallese toponyms are pure oral tradition with no written records at all, except for this source. Jo-Jo Eumerus (talk, contributions) 21:00, 10 May 2019 (UTC)[reply]
"This seamount was targeted for drilling in the Ocean Drilling Program.[4] - any idea when this was?
Geography and geology
" Lo-En is elongated in north-south direction[6] and has a flat top[9] with dimensions of 30 by 40 kilometres (19 mi × 25 mi)[10] and a surface area of 823 square kilometres (318 sq mi),[11] it is a typical guyot.[12] " - this last bit makes it a run-on. Could be its own, albeit very short, sentence.
"A volcanic pinnacle is embedded in the sediments on top of Lo-En, it is either a volcanic formation that resisted erosion or a volcanic vent that was active after Lo-En was submerged,[13] there are other cones which emerge from the sediments[14] and which appear to be of volcanic origin in light of the dredged rocks, as well as lobate structures." - also a run-on, but easy fix; just add a period after "Lo-En was submerged" and then capitalize "there"
"The seamount is normally magnetized[3] and it features distinct forms when examined magnetometrically.[16]" - to a lay reader, this would be confusing. Maybe outline (briefly) what normal magnetization means?
"Lo-En shares its volcanic edifice with Eniwetok,[22] a northern spur from Lo-En almost reaches Eniwetok[6] while another spur emerges in south-southeast direction[10] and is about 14.5 kilometres (9.0 mi) long.[23]" - Should be a semicolon after the first "Eniwetok" rather than a comma
"Candidate hotspots responsible for the formation of Lo-En are the Macdonald hotspot which passed close to Lo-En between 115-105 million years ago and the Rarotonga hotspot and Rurutu hotspot, both of which were at Lo-En between 90 and 74 million years ago,[35] the first two also have the strongest geochemical similarity to Lo-En.[36] " - last bit "the first two..." is a run-on. Also, were they at Lo-En or nearby? Not sure that's a precise way of saying it, to say they were "at" the guyot?
Split. I don't think that there is much of a distinction in this context; correlating past seamounts to present-day hotspots is always a bit inexact, also because hotspots have a horizontal extent. Jo-Jo Eumerus (talk, contributions) 21:00, 10 May 2019 (UTC)[reply]
"In the case of Lo-En, volcanism on the Ogasawara Fracture Zone may also have contributed to its formation[7] considering that it is much older than surrounding seamounts.[1]" - does the second it refer to the volcanism or Guyot? Clarify please!
"About 8 hotspots have formed a large number of islands and seamounts in that region, with disparate geochemistries,[38] that geological province has been called "South Pacific Isotopic and Thermal Anomaly" or DUPAL anomaly.[39]" - the last bit (After "that geological province...") doesn't quite fit grammatically with the rest of the sentence.
"The geologic history of Lo-En seamount is relatively poorly known,[44] paleomagnetic data have been used to infer an age of 45-85 million years ago for the seamount.[45]" - need a semicolon rather than a comma after "poorly known"
"It took about 2 to 7 million years " - elsewhere you've used dashes for ranges; you should try to stay consistent with that if you want to take this to FAC eventually
Seem fine. Just surprised there aren't any more recent papers on the guyot. I assume you've checked everything available?
Yes. The vast majority of underwater mountains are effectively unexplored, and here there was just one research effort by the Ocean Drilling Program. Most sources are just requotes from it. Jo-Jo Eumerus (talk, contributions) 21:00, 10 May 2019 (UTC)[reply]
@Jo-Jo Eumerus: Great. I think the "after that" bit is just a run-on. Any update on the timing comment you didn't respond to? ceranthor 13:28, 13 May 2019 (UTC)[reply]
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