Packet B: Bonus 9
Igneous rocks from the Máaz formation suggest that this process was active on early Mars. For 10 points each:
[10h] Name this process, the hydrothermal alteration of ultramafic rocks. The hydrogen and methane generated by this process on Earth may have driven the origin of life.
ANSWER: serpentinization [accept answers specifying the formation of serpentinite or serpentine minerals; prompt on metasomatism by asking “what specific form of metasomatism?”]
[10e] Serpentinization on Mars indicates that Mars may have once had this property. This property characterizes a zone of the Solar System in which a planet’s surface can sustain liquid water.
ANSWER: habitability [or habitable; accept habitable zone; prompt on Goldilocks zone by asking “the Goldilocks zone is a zone of what property?”]
[10m] This other body may be suitable for aquatic life because its salty and alkaline subsurface ocean actively sustains serpentinization. Four “tiger stripes” near the south pole of this moon of Saturn indicate its present-day cryovolcanism.
ANSWER: Enceladus
<UCLA B, Other Science> | Packet B - Queens A, UCLA B, Edinburgh B, St. Georges A
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 74 | 12.70 | 87% | 34% | 7% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Brandeis A | Bowdoin B | 0 | 10 | 0 | 10 | E |
| Brown | Bowdoin A | 0 | 10 | 0 | 10 | E |
| Dartmouth B | Brandeis B | 0 | 10 | 0 | 10 | E |
| Harvard A | Yale | 0 | 10 | 10 | 20 | EM |
| MIT | Dartmouth A | 0 | 10 | 10 | 20 | EM |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| California (North) | Main Site | ✓ | 3 | 10.00 | 100% | 0% | 0% |
| Canada | Main Site | ✓ | 10 | 13.00 | 90% | 30% | 10% |
| Florida | Main Site | ✓ | 3 | 16.67 | 100% | 67% | 0% |
| Great Lakes | Main Site | ✓ | 5 | 16.00 | 80% | 60% | 20% |
| Lower Mid-Atlantic | Main Site | ✓ | 9 | 11.11 | 89% | 22% | 0% |
| Midwest | Main Site | ✓ | 8 | 16.25 | 88% | 63% | 13% |
| Northeast | Main Site | ✓ | 5 | 14.00 | 100% | 40% | 0% |
| Overflow | Main Site | ✓ | 4 | 15.00 | 100% | 50% | 0% |
| South Central | Main Site | ✓ | 2 | 25.00 | 100% | 100% | 50% |
| Southeast | Main Site | ✓ | 7 | 8.57 | 71% | 14% | 0% |
| UK | Main Site | ✓ | 6 | 11.67 | 67% | 50% | 0% |
| Upper Mid-Atlantic | Main Site | ✓ | 8 | 8.75 | 88% | 0% | 0% |
| Upstate NY | Main Site | ✓ | 4 | 10.00 | 75% | 0% | 25% |