Werner invited his students to see a particular rock type in France, whereby their viewpoint about the formation of all rocks changed. Why was this so?
A) They saw lava flows that clearly had not issued from the volcanoes and were composed of a rock called basalt; Werner believed that basalt was volcanic.
B) They saw lava flows that clearly had issued from the volcanoes and were composed of a rock called basalt; Werner didn't believe that basalt was volcanic.
C) They saw sandstone that contradicted their Neptunist beliefs.
D) They saw metamorphic rocks that contradicted their Neptunist beliefs.

Question

Quizplus · Accepted Answer

Werner, who was a proponent of Neptunism, believed that all rocks had precipitated from a primordial ocean. Seeing basalt that had clearly issued from volcanoes contradicted his belief that basalt was not volcanic, challenging the Neptunist viewpoint.

Werner Invited His Students to See a Particular Rock Type