Determine the approximate thickness of the Neogene units in the areas indicated. (Both the Helm’s Deep Sandstone and the Rohan Tuff have quite variable thicknesses. The Rohan Tuff was tilted and partly eroded prior to the deposition of the Helm’s Deep Sandstone, and the Helm’s Deep Sandstone has no upper contact. Where appropriate, determine the range of thicknesses.)

Transcribed Image Text:

Gollum Ridge Gandalf's Knob Galadriel's Ridge Mirkwood Creek North of Edoras Creek Thd Tr Tg