The following sentences describe the historical scientific process behind mapping the ocean floor and discovering seafloor spreading. What is the most logical and chronological order for these sentences?
- 1In the early 1950s, geologist Marie Tharp began plotting raw sonar data to draft the first comprehensive topographic maps of the Atlantic Ocean floor.
- 2While analyzing these profiles, she noticed a consistent V-shaped cleft running along the center of the Mid-Atlantic Ridge and hypothesized it was a rift valley.
- 3Initially, her research partner Bruce Heezen dismissed this finding as a minor drafting error, skeptical of the existence of such a massive feature.
- 4Shortly thereafter, Heezen plotted the epicenters of oceanic earthquakes and discovered they aligned precisely with Tharp's cleft, validating her mapping and supporting the theory of seafloor spreading.
Cevap
The correct sequence begins with Marie Tharp plotting raw sonar data in the early 1950s, followed by her noticing a V-shaped cleft while analyzing those profiles, then Bruce Heezen initially dismissing the finding as a drafting error, and ending with Heezen subsequently plotting earthquake epicenters to validate the mapping.
The correct chronological and logical sequence begins with the initiation of the mapping project in the early 1950s, followed by the discovery of the cleft while analyzing the mapping profiles, then the initial skepticism of Tharp's research partner, and finally the subsequent verification of the cleft through earthquake epicenter mapping.
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Anahtar Kavram
Chronological and logical sequencing in informational texts using transitions and pronoun antecedents.