![Milankovitch cycles in banded iron formations constrain the Earth–Moon system 2.46 billion years ago | PNAS Milankovitch cycles in banded iron formations constrain the Earth–Moon system 2.46 billion years ago | PNAS](https://www.pnas.org/cms/asset/cb76b85d-f0ee-4580-b693-1d3d7efe5136/keyimage.jpg)
Milankovitch cycles in banded iron formations constrain the Earth–Moon system 2.46 billion years ago | PNAS
![A) Typical bedded jasper and hematite banded iron formation that was... | Download Scientific Diagram A) Typical bedded jasper and hematite banded iron formation that was... | Download Scientific Diagram](https://www.researchgate.net/publication/258612109/figure/fig4/AS:297326523502592@1447899575164/A-Typical-bedded-jasper-and-hematite-banded-iron-formation-that-was-the-primary.png)
A) Typical bedded jasper and hematite banded iron formation that was... | Download Scientific Diagram
![File:Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 129 (48069764901).jpg - Wikimedia Commons File:Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 129 (48069764901).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/36/Jaspilite_banded_iron_formation_%28BIF%29_%28Negaunee_Iron-Formation%2C_Paleoproterozoic%2C_1.874_or_2.11_Ga%3B_Jasper_Knob%2C_Ishpeming%2C_Michigan%2C_USA%29_129_%2848069764901%29.jpg)
File:Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 129 (48069764901).jpg - Wikimedia Commons
![Earth Sciences Museum on Twitter: "Now here's a fantastic specimen! This marvellously striated rock is a banded iron formation! Our banded iron formation is sedimentary rock comprising interbedded layers of red jasper Earth Sciences Museum on Twitter: "Now here's a fantastic specimen! This marvellously striated rock is a banded iron formation! Our banded iron formation is sedimentary rock comprising interbedded layers of red jasper](https://pbs.twimg.com/media/FFAHgg1X0AUSeX8.jpg)