Banded iron formation
id:
banded-iron-formation-177-5208014
title:
Banded iron formation
text:
Banded iron formations are distinctive units of sedimentary rock consisting of alternating layers of iron oxides and iron-poor chert. 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 thought 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 (Ma), are associated with banded iron formations. Ban
brand slug:
wiki
category slug:
encyclopedia
description:
Distinctive layered units of iron-rich sedimentary rock that are almost always of Precambrian age
original url:
https://en.wikipedia.org/wiki/Banded_iron_formation
date created:
2002-06-07T21:14:15Z
date modified:
2024-09-03T23:53:41Z
main entity:
{"identifier":"Q304213","url":"https://www.wikidata.org/entity/Q304213"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/25/Banded_iron_formation_Dales_Gorge.jpg","width":4288,"height":2848}
fields total:
13
integrity:
16