Question
Answer the following about the relationship between the Earth’s climate and LIPs (“lips”), or large igneous provinces, for 10 points each.
[10e] The Deccan Traps LIP is correlated with this extinction event. This extinction event is usually linked to the asteroid impact that formed the Chicxulub (“chick-shuh-LUB”) crater.
ANSWER: K-T extinction event [or Cretaceous–Tertiary extinction event, K–Pg extinction event, Cretaceous–Paleogene extinction event, or end-Cretaceous mass extinction; reject “Cretaceous,” “Tertiary,” or “Paleogene”]
[10h] The Columbia River Basalt Group correlates with a nearly two-million-year-long event in the middle of this epoch that reversed the long-term Cenozoic cooling trend. In this epoch, the Tethys Sea connection between the Mediterranean Sea and Indian Ocean closed.
ANSWER: Miocene [accept Middle Miocene Climatic Optimum]
[10m] Xiaochuan Tian and W. Roger Buck propose that LIPs erupt after these intrusions form and crystallize, which releases large amounts of CO2. These concordant intrusions form beds parallel to the surrounding country rock.
ANSWER: sills
Data
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total |
|---|---|---|---|---|---|
| Chicago C | UC Berkeley A | 10 | 0 | 10 | 20 |
| Florida A | Georgia Tech A | 10 | 0 | 0 | 10 |
| MIT A | Indiana A | 10 | 0 | 0 | 10 |
| Ohio State A | Chicago B | 10 | 0 | 0 | 10 |
| Stanford A | Yale A | 10 | 0 | 0 | 10 |
| WUSTL A | Chicago A | 10 | 0 | 0 | 10 |