Как железо появилось в океанических осадочных породах #vertdider #veritasium

less than 1m read

·Nov 3, 2024

2,5 млрд лет назад цено бактерии начали наполнять окружающее пространство кислородом. Железо вступало в реакцию с ним, а образовавшийся осадок копил на дне океана. По случайности, кислород заодно отравляет на бактерии, которые его производили.

Считается, что через какое-то время их стало так мало, что содержание кислорода снизилось, и оксид железа оседать перестал. Затем цианобактерии снова начали распространяться, и всё повторилось заново.

Большую часть железа обнаруживают в слоях метаморфической породы железистого кварцита, также известного как джеспилит. Эти слои формировались в период, когда цено бактерий было много и они насыщали кислородом. Именно поэтому отсюда и добывают основной объём железа на земле.

Здесь невероятно высока концентрация оксида железа — до 60% от общего веса.

The Remarkable Story Behind The Most Important Algorithm Of All Time

Gavin Grimm's Story | Gender Revolution

View All

Axe Ghost devlog - The bug that ruined the run

My name is Thomas K. I’m working on a game called Axe Ghost. It’s currently in development. There’s a demo on Steam, and my good friend Rishad Buser, he plays the beta version of Axe Ghost, and when he’s able, he streams his daily runs. Richard, by the wa…

Obligations of citizenship | Citizenship | High school civics | Khan Academy

In this video, we’re going to learn about the obligations of U.S. citizenship. Obligations are actions that citizens are required to fulfill, or they’ll face punishment by law. Unlike the responsibilities of citizenship we talked about in the last video, …

Creating scale drawings | Geometry | 7th grade | Khan Academy

Sue is a software engineer. She wants to create a large-scale drawing of a processor inside a cell phone. The processor is a square chip, nine millimeters on each side. Draw the processor such that one unit on the grid below represents one half of a milli…

WHICH PLAYER SHOULD I CHANGE? | Maresca hits back at calls for more Chelsea substitutes

Must proved a very frustrating end to the afternoon for you, and what does it tell you about your Chelsea team? No, yeah, as I said, I just said that probably we did enough to win the game today. Between the first half and second half, I think we created…

Why America Is Going Bankrupt

What’s up, Graham? It’s guys here, and if you check the news, I guarantee you’re going to see headlines that explain that the U.S. is on the brink of a recession. The debt default could trigger the Dollar’s collapse, and the everything bubble is bursting.…

STOCK MARKET REACHES ANOTHER ALL TIME HIGH | DO THIS NOW

What’s up you guys? It’s Graham here. So, today has been a very eventful day. So eventful, in fact, that I had to replace the normal video I had scheduled today with this one because wow, today has been one of the best performing days for the stock market…

Как железо появилось в океанических осадочных породах #vertdider #veritasium

More Articles