what is the economical use of banded iron formation

Banded-iron formation | rock | Britannica.com

Banded-iron formation (BIF), chemically precipitated sediment, typically thin bedded or laminated, consisting of 15 percent or more iron of sedimentary origin and layers of chert, chalcedony, jasper, or quartz. Such formations occur on all the continents and usually are older than 1.7 billion

Banded Iron Formation - an overview | ScienceDirect Topics

Banded Iron Formation. Banded iron formation or BIF is a chemical sediment, typically thin-bedded or laminated with >15% iron of sedimentary origin. BIF has a very distinct distribution with time (see Figure 9.32 in Chapter 9). It is found in minor amounts in the early Archean and in large amounts in the late Archean, appears again around 1.9 ...

Algoma-type banded iron formation (BIF), Abitibi ...

This Algoma-type banded iron-formation correlates with strong airborne magnetic anomalies trending mostly in an east–west direction for more than 36 km in strike length. The thickness of these BIF varies from 120 m to 600 m and appears to be tilted to sub-vertical.

Banded iron formation Types and Facts | Monuments

The types of Banded iron formation include Algoma-type, Lake Superior-type, Superior-type and Taconite. Depending upon Banded iron formation Texture, it is divided into types. Here, you will get to know about Banded iron formation types, interesting facts, features of Banded iron formation, its monuments and fossils.


Banded Iron-Formations . One type of geologic evidence that bears on the rise of oxygen is the occurrence of banded iron-formations. Banded iron-formations (BIFs) are laminated sedimentary rocks that consist of alternating millimeter-thick layers of iron-rich minerals and chert.


Banded Iron Formation (also known as BIF, or as taconite in North America) is a term that is applied to a very unique sedimentary rock of biochemical origin. These rocks are unique in their make up, unique in their age and unique in their origins. They are found all over the world, but only in certain areas of all the major continents.

Banded iron formation - Wikipedia

The formations are abundant around the time of the great oxygenation event, 2,400 million years ago (), and become less common after 1,800 mya with evidence pointing to intermittent low levels of free atmospheric oxygen. new banded iron formations formed that may be …

Banded-iron formations (BIFs) - Evidence of Oxygen in ...

Summary: Banded-iron formations (BIFs) are sedimentary mineral deposits consisting of alternating beds of iron-rich minerals (mostly hematite) and silica-rich layers (chert or quartz) formed about 3.0 to 1.8 billion years ago.Theory suggests BIFs are associated with the capture of oxygen released by photosynthetic processes by iron dissolved in ancient ocean water.

Banded Iron Formation | Western Australian Museum

Banded iron formations appear to have been deposited in areas of the ocean where seawater with high contents of dissolved iron and silica came into contact with water containing higher amounts of oxygen, which resulted in the precipitation of hematite and chert (microcrystalline quartz).

Exam 2 Review Flashcards | Quizlet

11. Why do banded iron formation not form today? a. There is too much free oxygen in the air b. The oceans are less acidic because there is less atmospheric CO2 c. There is less iron on the surface d. Banded iron formation are deposited in modern settings e. The earth is not warm enough to deposit banded iron formations

Banded Iron Formation - University of Oregon

Banded Iron Formation. Banded Iron formations occur in Proterozoic rocks, ranging in age from 1.8 to 2.5 billion years old. They are composed of alternating layers of iron-rich material (commonly magnetite) and silica (chert). Each layer is relatively thin, varying in …

Banded iron formation Definition | History

Banded iron formation comes under Sedimentary Rocks. All Sedimentary Rocks have similar properties and formation process. Along with Banded iron formation Definition, know more about the History of Banded iron formation, Etymology of Banded iron formation in next sections.

What do banded iron formation deposits reveal about the ...

What do banded iron formation deposits reveal about the evolution of the atmosphere? Submitted by Bosiljka Glumac, Smith College How to use this question in the classroom. In my introductory-level geology courses BIFs are the focus of one of the topics on the evolution of the atmosphere.


Introduction: Banded Iron Formation-Related High-Grade Iron Ore Steffen Hagemann, Carlos Rosière, Jens Gutzmer, and Nicolas J. Beukes 1 Part I — Origin of Banded Iron Formations Chapter 1: Origin and Paleoenvironmental Significance of Major Iron Formations at the Archean-Paleoproterozoic Boundary Nicolas J. Beukes and Jens Gutzmer 5

Banded Iron Formation Research Papers - Academia.edu

Banded Iron Formations (BIFs), as the name suggests, are chemically precipitated sedimentary rocks having alternating Fe-rich and Si-rich bands. The origin of BIF has always remained a debated topic of research. The BIF in the Badampahar Greenstone Belt is of Mesoarchean age that formed a part of the East Indian Shield.

Genesis Stone Jasper • Banded Iron Formation (BIF) for ...

Genesis Stone / Banded Iron Genesis Stone / Banded Iron is a sedimentary stone made of alternating layers of jasper and hematite or magnetite. It was formed 1.8 – 2.4 billion years ago in the ancient iron seas. These pieces were broken off from the main formation by an unknown event and left to weather on the Wyoming plains.

Iron Deposits – Banded Iron Formations (BIF) | Geology for ...

Aug 11, 2013· Banded iron formations (BIFs) are different – they were all formed at a time where the earth was a decidedly different environment than it is today. Banded iron formations are critical to our current economy as they are by far the biggest source of economic iron deposits.

Banded iron formation - YouTube

Aug 25, 2016· Banded iron formations are distinctive units of sedimentary rock that are almost always of Precambrian age.A typical BIF consists of repeated, thin layers of silver to black iron oxides, either ...

Definition of BANDED IRON FORMATION - Merriam-Webster

Banded iron formation definition is - a sedimentary deposit that consists of alternating thin layers of iron oxides (such as magnetite or hematite) and iron-poor minerals (such as shale or chert) —abbreviation BIF. How to use banded iron formation in a sentence.

Talk:Banded iron formation - Wikipedia

Banded iron formation is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information. Start This article has been rated as Start-Class on the project's quality scale.


banded iron formations (BIF) through parts of the strati-graphic sequence. In the Matchless Amphibolite Mem-ber of the Kuiseb Formation, iron formations (magnetite quartzite) are closely related to massive sulphide depos-its, such as at the Matchless and Otjihase mines, but the economic potential of BIF elsewhere is not known. This

Historical Geology/Banded iron formations - Wikibooks ...

BIFs defined []. Banded iron formations, or BIFs are sedimentary rocks consisting of alternating bands iron-rich sediment (typically hematite, Fe 2 O 3, and magnetite, Fe 3 O 4) and iron-poor sediment, typically chert; the size of the bands ranges from less than a millimeter to more than a meter in thickness.The image to the right shows a fairly typical banded iron formation: the red bands are ...

Banded iron formation Uses | Medical | Architecture

However, some rocks have rare properties. Banded iron formation uses in construction industry include As dimension stone, Used for flooring, stair treads, borders and window sills.. Banded iron formation rock is not yet used in the medical industry. Some types of rocks have exceptional properties and can be used in medical industry.

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