What geologic studies finally confirmed Darwin's hypothesis that coral atolls all had a volcanic substrate underneath that formed the original platform for corals to colonize?
A) scientific drilling of Eniwetok and Bikini Atolls by the U.S. government in preparation for nuclear weapons tests
B) submersible traverses down the flanks of North Atlantic atolls by the C.S.S. Hudson
C) exploration drilling of the Great Barrier Reef by Petro Canada for offshore oil production
D) seismic imaging of the West Pembina Pinnacle Reefs in the Alberta Basin by Amoco

Question

Quizplus · Accepted Answer

The scientific drilling of Eniwetok and Bikini Atolls by the U.S. government in preparation for nuclear weapons tests provided direct evidence supporting Darwin's hypothesis that coral atolls are built on volcanic substrates. This drilling allowed scientists to directly observe the volcanic rock beneath the coral layers, confirming the foundational role of volcanic activity in atoll formation.

What Geologic Studies Finally Confirmed Darwin's Hypothesis That Coral Atolls