How would a Vulcanist explain the formation of rocks on primitive Earth?
What will be an ideal response?
Answer: The Vulcanists opposed the Neptunists and described an inherently hot planet. On this hot Earth, rocks formed from the fusing of particles by heat, or from solidification of magma rising from a molten interior. It was quite clear to Vulcanists, however, that narrow veins of the Primitive Rock continued upward into the overlying Stratified Formations. The finger-like veins of the Primitive Rock suggested to Vulcanists the injection of a liquid along cracks in the Stratified Formations. This implied that the Primitive Rock could not always be the older of the two, because the Stratified Formations had to be present before the Primitive Rock could be injected into them. Furthermore, at the boundary of the two rock types, the layered formations were different in hardness and color, as if baked at high temperature.
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What will be an ideal response?
Why is wind less effective than moving water at picking up and moving materials?
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Oceanic crust is primarily ________
A) basalt B) carbonate sedimentary rocks C) clay minerals D) granite E) siltstone