Question
Deposition of mass onto this layer via processes like orogeny induces its namesake “flexure” by disturbing isostatic equilibrium. For 10 points each:
[10m] Name this layer that contains Earth’s crust and an upper part of the mantle. This layer’s flexibility is due to the fluid-like behavior of the layer below it.
ANSWER: lithosphere
[10h] Lithospheric flexure can cause a forebulge against which “belts” named for this action and folding form. This action names “reverse faults” that arise from décollements (“deh-coal-MONTS”) and push older rocks above younger rocks.
ANSWER: thrusting [accept fold and thrust belts; accept thrust faults or overthrusting]
[10e] Fold and thrust belts consist of this general class of rocks contrasted with igneous and metamorphic rocks.
ANSWER: sedimentary rocks [reject “sediment”]
<David Bass, Science - Earth> ~23885~ <Editor: David Bass>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 16.94 | 97% | 67% | 6% |