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WikiCards · Card list · Nature cards · Banded iron formation
Uncommon card · Nature
Banded iron formation, an Uncommon card
Banded iron formations are distinctive units of sedimentary rock consisting of alternating layers of iron oxides and iron-poor chert.
- Rarity
- Uncommon
- Domain
- Nature
- ATK
- 80
- DEF
- 96
- Power
- 176
- Wikipedia reads a year
- 66,000
Ranked #1,184 of the 3,000 cards of the base set by power (ATK + DEF).
Banded iron formation quiz: 3 questions
Three questions on the Banded iron formation card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
They can be up to several hundred meters in thickness and extend laterally for several hundred ______.
Answer
kilometers. They can be up to several hundred meters in thickness and extend laterally for several hundred kilometers. From the Banded iron formation article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Refugee. Refugee 91 · Gardening 84 · Banded iron formation 80 · Clathrate gun hypothesis 76 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Abyssal plain. Abyssal plain 88,000 · Banded iron formation 66,000 · Flood management 32,000 · Clathrate gun hypothesis 24,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- They can be up to several hundred meters in thickness and extend laterally for several hundred kilometers.
- Almost all of these formations are of Precambrian age and are theorized to record the oxygenation of the Earth's oceans.
- Some of the Earth's oldest rock formations, which formed about 3,700 million years ago, are associated with banded iron formations.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Banded iron formation article was read about 66,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 80 and blocks with 96: each hit it takes is cut by 38 %.
How to get Banded iron formation
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Nature cards
Cards close in power
The cards just above and just below Banded iron formation in the power ranking, all domains together.
- Pali CanonUncommon · Arts · ATK 78 DEF 98
- RefugeeUncommon · Society · ATK 91 DEF 85
- OrphanageUncommon · Arts · ATK 86 DEF 90
- Travis Scott discographyUncommon · Arts · ATK 93 DEF 83
- TinamouUncommon · Nature · ATK 80 DEF 96
- AggressionUncommon · Science · ATK 88 DEF 88
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
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Credits
Text : Wikipedia, Banded iron formation (revision), CC BY-SA 4.0. Photo : Graeme Churchard from Bristol, UK, CC BY 2.0, Wikimedia Commons.
