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Episode 886             Episode 888
Episode 887

Horizon Guyot
Wed, 2019-Oct-09 00:51 UTC
Length - 2:22

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Welcome to featured Wiki of the Day where we read the summary of the featured Wikipedia article every day.

The featured article for Wednesday, 9 October 2019 is Horizon Guyot.

Horizon Guyot is a presumably Cretaceous guyot (tablemount) in the Mid-Pacific Mountains, Pacific Ocean. It is an over 300 kilometres (190 mi) long and 4.3 kilometres (2.7 mi) high elongated ridge that stretches in a northeast-southwest direction and has two flat tops; it rises to a minimum depth of 1,443 metres (4,730 ft). The Mid-Pacific Mountains and thus also Horizon Guyot lie west of Hawaii and northeast of the Line Islands.

It was probably formed by a hotspot, but evidence is conflicting. Volcanic activity occurred during the Turonian-Cenomanian eras 100.5–89.8 million years ago and another stage has been dated to have occurred 88–82 million years ago. Between these volcanic episodes, carbonate deposition from lagoonal and reefal environments set in and formed limestone. Volcanic islands developed on Horizon Guyot as well and were colonised by plants.

Horizon Guyot became a seamount during the Coniacian-Campanian period. Since then, pelagic ooze has accumulated on the seamount, forming a thick layer that is further modified by ocean currents and by various organisms that live on the seamount; sediments also underwent landsliding. Ferromanganese crusts were deposited on exposed rocks.

This recording reflects the Wikipedia text as of 00:51 UTC on Wednesday, 9 October 2019.

For the full current version of the article, see Horizon Guyot on Wikipedia.

This podcast is produced by Abulsme Productions based on Wikipedia content and is released under a Creative Commons Attribution-ShareAlike License.

Visit wikioftheday.com for our archives, sister podcasts, and swag. Please subscribe to never miss an episode. You can also follow @WotDpod on Twitter.

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This has been Raveena. Thank you for listening to featured Wiki of the Day.

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