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Zorluk: ZorIdentifying Explicit Details

The following passage is adapted from an essay on mid-twentieth-century oceanographic history:

In early 1977, an oceanographic research team launched an expedition to investigate thermal anomalies along the Galápagos Rift, an active seafloor spreading center in the eastern Pacific Ocean. Because deep-sea submersibles operated under strict battery limitations and brief dive windows, researchers relied on preliminary surveying tools before deploying crewed vessels. On February 15, the surface support ship towed the unmanned, camera-equipped sled known as ANGUS (Automated Nautical Geophysical Underwater System) just meters above the basaltic seabed. During this run, ANGUS recorded a localized temperature increase of 0.1C0.1^\circ\text{C} while simultaneously photographing clusters of giant white clam shells resting on the ocean floor.

Analyzed immediately by onboard geophysicists, the thermistor data and black-and-white photographs allowed the team to pinpoint the precise coordinates of the anomaly, which they designated as 'Clambake I.' Two days later, on February 17, geologists Jack Corliss and Tjeerd van Andel boarded the three-person submersible *Alvin* to execute Dive 713. Descending to a depth of roughly 2500 meters2{}500\text{ meters}, the pilots navigated directly toward the coordinates mapped by ANGUS. Upon reaching the rift valley floor, the observers witnessed clear, warm water shimmering as it emanated from narrow fractures in the volcanic basalt. This direct observation provided the first conclusive proof of active hydrothermal venting on the ocean floor.

Based on the explicit details provided in the passage, in what chronological order did the events of the Galápagos Rift expedition occur?

  1. 1ANGUS recorded a localized 0.1C0.1^\circ\text{C} temperature spike and photographed clam shell clusters.
  2. 2Researchers designated the mapped anomaly coordinates as 'Clambake I.'
  3. 3Jack Corliss and Tjeerd van Andel descended to the seabed in the submersible Alvin.
  4. 4Observers inside Alvin witnessed warm water shimmering from basaltic rock fractures.

Cevap

The correct chronological sequence of events is: First, ANGUS recorded the temperature spike and took photos on February 15; second, researchers analyzed the data and named the anomaly 'Clambake I'; third, scientists descended in Alvin on February 17; fourth, observers aboard Alvin saw warm water emanating from the basalt rock.
The passage explicitly lays out a clear timeline: On February 15, ANGUS recorded the 0.1C0.1^\circ\text{C} temperature spike and photographed clam shell clusters. Onboard geophysicists analyzed these results immediately and designated the target site 'Clambake I.' Two days later on February 17, Corliss and van Andel descended in Alvin, and upon arriving at the seabed, they observed warm water emanating from basaltic fractures.

Adım Adım Çözüm

1
Identify the first event from explicit dates and markers in the passage.
On February 15, the unmanned sled ANGUS recorded a temperature increase of 0.1C0.1^\circ\text{C} and photographed clam shells.
This is stated as the initial survey activity that detected the anomaly.
2
Locate the immediate follow-up action taken by the researchers.
The research team analyzed the data from ANGUS and designated the specific coordinates as 'Clambake I.'
The passage explicitly states this designation occurred following the onboard analysis of ANGUS data.
3
Identify the next event in the timeline based on explicit date references.
Two days later, on February 17, Jack Corliss and Tjeerd van Andel descended in the submersible Alvin.
The text explicitly links February 17 as two days after the initial February 15 survey.
4
Determine the final event described upon Alvin reaching the ocean floor.
Upon reaching the rift floor at 2500 meters2{}500\text{ meters}, the observers witnessed shimmering warm water emerging from basalt fractures.
This direct visual confirmation is stated as taking place after Alvin completed its descent to the coordinates.

Anahtar Kavram

Determining Explicit Stated Sequence of Events
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