hard · Enhanced ACT science
A geologist studies a vertical cliff face showing, from bottom to top: sandstone (layer 1), shale (layer 2), limestone (layer 3), then a tilted contact above which lies horizontal basalt (layer 4). A vertical igneous dike cuts through layers 1, 2, and 3 but stops at the base of layer 4. A fault offsets layers 1 and 2 but NOT layer 3.
Which ordering of events, from earliest to latest, is fully consistent with these relationships?
- Deposit 1 and 2, fault them, deposit 3, intrude the dike, then deposit 4
- Intrude the dike, deposit 1, 2, and 3, fault them, then deposit 4
- Deposit 1, 2, and 3, intrude the dike, fault 1 and 2, then deposit 4
- Deposit 1 and 2, deposit 3, deposit 4, then fault and intrude the dike together
Sign up free to see the explanation and track your rank →
More Enhanced ACT science practice
- An experimenter tests the effect of different light waveleng… — In this experimental desig
- At any given temperature, the catalyst increases the reaction rate by what factor?
- What is the relationship?
- Which species has a higher population at Year 5?
- Which soil type retains the LEAST amount of water?
- What is the pressure when the volume is 2.0 L?
- If water has a density of 1.00 g/cm³, which liquid will sink in water?
- As the frequency of the waves increases, the wavelength: