This Figure Has Rock Units and Geologic Features That Are

question 94

Multiple Choice

This figure has rock units and geologic features that are assigned letters that are not in any particular order. From the geologic relations, what is the oldest unit or feature of those listed below?

• A) the canyon feature
• B) lava flow unit
• C) dike unit
• D) fault feature
• E) old river channels feature

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Definitions:

Sleep Lab

A sleep lab is a facility equipped for observing and recording a person's sleep patterns to diagnose sleep disorders.

Electroencephalograph (EEG)

A device used to record electrical activity of the brain through electrodes placed on the scalp.

Delta Waves

Slow brain waves predominantly observed in the deepest stages of sleep, indicating deep sleep and unconsciousness.

Stage 3 Sleep

A deep stage of sleep characterized by low frequency delta waves, essential for restorative sleep functions.