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Question

Difficulty: HardSequence of Events

Read the following passage:

When the research vessel *Geryon* first mapped the Mariana Ridge in 2012, its sonar picked up anomalous thermal plumes, though the crew did not realize the significance of their findings until years later. It was only after Dr. Marcus Thorne published his 2018 treatise on sub-crustal heat dissipation—a work inspired by a bizarre deep-sea specimen cataloged during a routine 2005 biological survey—that a targeted expedition was launched. In 2021, the robotic submersible *Nereus II* finally descended into the trench, confirming the existence of the venting field. Curiously, analysis of the mineral chimneys retrieved during that 2021 dive revealed they had begun forming centuries ago, long before 19th-century whaling logs first recorded unexplained warm-water patches in the area.

Based on the passage, arrange the following events in chronological order, starting with the earliest event.

  1. 1Whaling logs record mysterious patches of warm water.
  2. 2A deep-sea biological specimen is cataloged during a routine survey.
  3. 3The research vessel *Geryon* maps anomalous thermal plumes.
  4. 4Dr. Marcus Thorne publishes a treatise on sub-crustal heat dissipation.

Answer

The correct chronological order of the events is: whaling logs record warm-water patches (19th century), a deep-sea specimen is cataloged (2005), the research vessel Geryon maps the anomalous thermal plumes (2012), and Dr. Marcus Thorne publishes his treatise (2018).
The chronological sequence is determined by tracking the explicit dates and historical periods mentioned in the passage: the 19th-century whaling logs are the oldest event, followed by the 2005 biological survey, the 2012 sonar mapping by the Geryon, and Dr. Marcus Thorne's 2018 treatise.

Step-by-Step Solution

1
Identify the timeline of the historical whaling logs.
The whaling logs recorded the unexplained warm-water patches in the 19th century.
The passage states that the mineral chimneys began forming 'long before 19th-century whaling logs first recorded unexplained warm-water patches,' establishing this as the earliest historical event among the choices.
2
Identify the timeline of the biological specimen cataloging.
The deep-sea specimen was cataloged during a survey in 2005.
The text notes that Dr. Thorne's work was inspired by a specimen cataloged during a 'routine 2005 biological survey.'
3
Identify the timeline of the Geryon mapping mission.
The Geryon mapped the Mariana Ridge in 2012.
The first sentence of the passage states: 'When the research vessel Geryon first mapped the Mariana Ridge in 2012...'
4
Identify the timeline of Dr. Marcus Thorne's publication.
Dr. Thorne published his treatise in 2018.
The passage details that 'It was only after Dr. Marcus Thorne published his 2018 treatise... that a targeted expedition was launched.'

Key Concept

Chronological ordering of events within a non-linear narrative structure.
Estimated Time:2m 0s
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Topics

Sequence of Events

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