banded iron formation education powerpoint

Ch 9 Proterozoic Flashcards Quizlet

Ch 9 Proterozoic Flashcards Quizlet

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience

Animikie Group - Wikipedia

Animikie Group - Wikipedia

Banded Iron Formation Aerobic metabolism developed Eucaryotic cells that could deal with O2 4 THE PRIMORDIAL EARTH Hadean and Archean Eons Early Eucaryotic Cells Appeared about the time the Banded Iron Formation ended May have been the result of several procaryotic cells living together in a host cell May have been for protection from O2 5

banded Free Document Search Engine 1pdf net

banded Free Document Search Engine 1pdf net

Apr 16 2017· What is BANDED IRON FORMATION What does BANDED IRON FORMATION mean BANDED IRON FORMATION meaning - BANDED IRON FOR

Banded Iron Formation - Department of Earth and

Banded Iron Formation - Department of Earth and

Banded iron formation BIF deposition was the likely result of oxidation of ferrous iron in seawater by either oxygenic photosynthesis or iron-dependent anoxygenic photosynthesis—photoferrotrophy BIF deposition however remains enigmatic because the photosynthetic biomass produced during iron oxidation is conspicuously absent from BIFs We have addressed this enigma through experiments

Tectono-Structural Overviews of Iron Formation of North

Tectono-Structural Overviews of Iron Formation of North

Ring-in-ring structures in Australian Early Precambrian banded iron formation BIF were identified as bubbling mud wavelets which lithified during temporary exposure contradicting the alleged BIF deep ocean origin Least altered BIFs consist of alternating chert laminae with and without iron oxides or carbonates They were precipitated during

Photoferrotrophy deposition of banded iron formations

Photoferrotrophy deposition of banded iron formations

Banded Iron Formation BIF and iron ore deposit occupy three distinct provinces surrounding the North Odisha Iron Ore Craton NOIOC located in eastern India They are Bonai-Keonjhar belt in the western flank Badampahar-Gorumahisani-Suleipat belt in the eastern flank and Daitari-Tomka belt in the southern side of the Craton All these three belts having group status are the best preserved

BIFBIF s J s Journey to Deaaaborborn

BIFBIF s J s Journey to Deaaaborborn

Low-oxygen conditions on early Earth Note up to about 2 3-2 2 Ga hydrosphere contains minimal free oxygen -uranium occurs in solid particles uranium dissolves in presence of oxygen -fluvial river sediments contain reduced iron so not red -iron oxide is deposited in ocean in banded iron formations BIF soils are iron-deficient

PowerPoint Presentation

PowerPoint Presentation

A nearly 3-billion-year-old banded iron formation from Canada shows that the atmosphere and ocean once had no oxygen Photosynthetic organisms were making oxygen but it reacted with the iron dissolved in seawater to form iron oxide minerals on the ocean floor creating banded iron formations

BANDED IRON FORMATION - Amethyst Galleries

BANDED IRON FORMATION - Amethyst Galleries

Apr 24 2018· Iron formations IFs are common before 1 800 million years ago Ma and again at ∼750 Ma but are remarkably absent for the billion years in between We report on a 1 400-Ma IF of ∼520 gigatons Fe from the Xiamaling Formation on the North China Craton Biomarker analyses suggest that anoxygenic phototrophic bacteria were involved in Fe II oxidation and further geochemical analysis …

Gold Mineralization in Banded Iron Formation in the Amalia

Gold Mineralization in Banded Iron Formation in the Amalia

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience

Colloidal origin of microbands in banded iron formations

Colloidal origin of microbands in banded iron formations

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 BIF from the USA Image CC A BIF is hard and heavy sedimentary stone

Banded iron formation - YouTube

Banded iron formation - YouTube

Banded iron formations BIFs are chemically precipitated sedimentary rocks They are composed of alternating thin millimeter to centimeter scale red yellow or cream colored layers of chert or jasper and black to dark gray iron oxides predominantly magnetite and hematite and or iron …

Iron-rich sedimentary rocks - Wikipedia

Iron-rich sedimentary rocks - Wikipedia

Banded Iron formation EVOLUTION OF ATMOSPHERE OXYGEN CONTENT Banded iron formation Continental Redbeds Most of that oxygen was dissolved in the oceans where it combined with iron and precipitated until about 2 5 billion years ago to form iron oxides in banded iron formation PowerPoint Presentation

The Archean Eon - Hofstra University

The Archean Eon - Hofstra University

The famous iron formation of north Odisha belongs to the Archaean schist belt comprising of the litho assemblages including the Banded Iron Formation BIF Iron Ore and associated rocks Major iron formations are confined to three different provinces located in the peripheral region encircling the granite complex which is designated as the North Odisha Iron Ore Craton NOIOC

UNIVERSITY OF SOUTH ALABAMA

UNIVERSITY OF SOUTH ALABAMA

ORIGIN OF LIFE Banded Iron Formation Ferrous irons in solution Fe When oxygen produced in photosynthesis bonds with iron get ferric oxides When ferric oxides precipitate get Banded Iron Formation produced from 3 4-1 8 bybp most from 2 5-2 0 bybp

Banded Iron Formation - an overview ScienceDirect Topics

Banded Iron Formation - an overview ScienceDirect Topics

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

Field Relationship among the Three Iron Ore Groups of Iron

Field Relationship among the Three Iron Ore Groups of Iron

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 associated with the theoretical Snowball Earth

Banded Iron Formations BIFs and Associated Sediments Do

Banded Iron Formations BIFs and Associated Sediments Do

The Animikie Group is a geologic group composed of sedimentary and metasedimentary rock having been originally deposited between 2 500 and 1 800 million years ago during the Paleoproterozoic era within the Animikie Basin This group of formations is geographically divided into the Gunflint Range the Mesabi and Vermilion ranges and the Cuyuna Range On the map the Animikie Group is the dark

PPT The Proterozoic Eon Top Ten Significant Events

PPT The Proterozoic Eon Top Ten Significant Events

Banded Iron Formation and Asbestos Oxygenation of the oceans and atmosphere by cyanobacteria lead to oxidation of soluble Fe2 to insoluble Fe3 producing banded iron formation BIF Fe 3 O 4 Fe2O 3 SiO 2 FeCO 3

PowerPoint Presentation

PowerPoint Presentation

Three major types of iron deposits 1 Replacement of limestone Red Mountain Formation Alabama most are Jurassic in age Clinton Type Fe Deposits 2 Primary hydrothermal deposits deep sea vents most are PreCambrian Algoma Type Fe Deposits 3 Banded Iron Formations hematite jasper most are Archean in age Superior Type Fe Deposits

Banded Iron Formation AMNH

Banded Iron Formation AMNH

The above classification scheme is the most commonly used and accepted though sometimes an older system is used which divides iron-rich sedimentary rocks into three categories bog iron deposits ironstones and iron formations A bog-iron deposit is iron that formed in a bog or swamp through the process of oxidation Banded iron formations vs granular iron formations

Iron Deposits Banded Iron Formations BIF Geology for

Iron Deposits Banded Iron Formations BIF Geology for

View Banded Iron Formation In India PPTs online safely and virus-free Many are downloadable Learn new and interesting things Get ideas …

Banded iron formation - Wikipedia

Banded iron formation - Wikipedia

Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over 1000 impressively designed data-driven chart and editable diagram s guaranteed to impress any audience

PPT the Proterozoic Eon alone PowerPoint presentation

PPT the Proterozoic Eon alone PowerPoint presentation

Precambrian banded iron formations record the composition of Earth s atmosphere and hydrosphere during the global rise of oxygen It has been suggested that the banded texture of these rocks points to fluctuations in ocean chemistry although this remains a subject of debate

Banded-iron formation rock Britannica

Banded-iron formation rock Britannica

The Blue Dot gold deposit located in the Archean Amalia greenstone belt of South Africa is hosted in an oxide ± carbonate facies banded iron formation BIF It consists of three stratabound orebodies Goudplaats Abelskop and Bothmasrust

PPT Geologic PowerPoint presentation free to download

PPT Geologic PowerPoint presentation free to download

Banded Iron Formation BIF Banded Iron Formation BIF - chemical sediments - Fe rich 20 - 40 wt -SiO 2 rich 40 - 60 wt -hematite magnetite siderite chert main minerals - laminated on various scales - ferric hydroxide amorphous silica greenalite siderite primary precipitates

PPT THE PRIMORDIAL EARTH PowerPoint presentation free

PPT THE PRIMORDIAL EARTH PowerPoint presentation free

Banded Iron-Formation A distal hydrothermal source for iron is favored while recent work utilizing Ge Si ratios Hamade et al 2003 suggests a continental component in silica flux

PowerPoint Presentation

PowerPoint Presentation

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

Banded iron formation - Wikipedia

Banded iron formation - Wikipedia

Banded Iron Look where the ar see where I live I way up in Michigan which stands for Formation row is and you can live at 123 Tilden s Upper Peninsula h Tl B B ang The explos I am broken into Microsoft PowerPoint - BIF s Journey to Dearborn - Candace Kawatsu ppt Compatibility Mode

A Mesoproterozoic iron formation PNAS

A Mesoproterozoic iron formation PNAS

Isua Banded Iron Formation BIF - 3 8 Ga •Carbon in chert is isotopically light enriched in C12 •May have been produced by life •Circumstantial evidence for life if found in rock with a sedimentary origin

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