Question
In 1988, the DISCOL experiment became the first experiment to investigate the environmental impact of mining these objects. For 10 points each:
[10e] Name these deep-sea “nodules” that may form hydrogenously, when metals precipitate out of seawater around a nucleus. These nodules are typically named after the transition metal that makes up most of their composition.
ANSWER: manganese nodules [or polymetallic nodules; accept ferromanganese nodules]
[10m] In addition to hydrogenous growth, manganese nodules may grow through a process of this name. In general, this process results in the conversion of sediment into sedimentary rock.
ANSWER: diagenesis
[10h] The majority of the world’s manganese nodules are found in this northeast Pacific region, the subject of the ABYSSLINE project led by Diva Amon. A 2023 study estimated that 92 percent of the species in this region are new to science.
ANSWER: Clarion-Clipperton Zone [or Clarion-Clipperton Fracture Zone or CCZ]
<DN, Other Science (Earth Science)>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 Chicago Open | 07/28/2024 | Y | 10 | 9.00 | 50% | 20% | 20% |