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superior type banded iron formation

Geochemistry of Muro Banded Iron-Formation, Central Nigeria

with the iron-formation. The oxide facies iron-formation is a dark grey, fine- grained, crystalline rock which displays banding on both centimetric and millimetric scales (i.e. meso- and micro- banding). The banding consists of alternating light-col- oured quartz-rich and darker-coloured iron oxide-rich la- yers.

File:Glacially eroded jaspilite banded iron formation ...

Superior-type iron-formations were deposited in relatively shallow water, continental shelf settings. The Soudan Iron-Formation is exposed in & around the town of Soudan, Minnesota at roadcuts, glacially-eroded outcrop knobs, surface mines, and underground mines.

Sixth International Conference on Mars (2003) 3067

SPECTRAL AND CHEMICAL CHARACTERISTICS OF LAKE SUPERIOR BANDED IRON FORMATION: ANALOG FOR MARTIAN HEMATITE OUTCROPS. Alicia Fallacaro 1 and Wendy Calvin, 1University of Nevada, Reno. Introduction: Lake Superior iron formation serves as .

Photo Gallery - Mineral of the Month - Agatelady

In the iron-rich areas around Lake Superior, there are deposits of banded iron formation. In addition to being called banded iron formation, many rockhounds label specimens as .

Photo Gallery - Mineral of the Month - Agatelady

In the iron-rich areas around Lake Superior, there are deposits of banded iron formation. In addition to being called banded iron formation, many rockhounds label specimens as Jasperite, Jaspite, or Jaspelite. This is a distinctive type of rock found in Precambrian sedimentary rocks.

Deliverable 82 - Iron - Map - English JulyX - USGS

Banded Iron Formations (BIF)!(Iron mineral occurrences Superior-type Banded Iron Formation (BIF) Algoma-type BIF Phanerozoic Oolitic Ironstone Country boundary Railroad Road - major Road - arterial Road - minor Stream - permanent ... Deliverable 82 - Iron - Map - English_JulyX

Banded Iron Formations from the Eastern Desert of Egypt: A ...

Banded Iron Formations from the Eastern Desert of Egypt: A new type of Ore? KHALIL, Khalil Isaac1 and EL-SHAZLY, Aley K.2 1 Department of Geology, University of Alexandria, Egypt 2 Geology Department, Marshall University, Huntington, WV 25755 Abstract Banded iron formations (BIFs) occur in thirteen localities in an area approximately 30,000 km2 within the eastern desert of Egypt.

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

North China Banded Iron Formations. The BIFs of China occur in four main provinces: Anshan, Hebei, Wutai and Qingling. Like Australia's BIFs all of these are a similar age of late Archean. China mines relatively low grade BIF, which have little secondary enrichment, .

1. Lutsinge B 2. Muravha E 3. Moswathupa H

Algoma-type banded iron formations Algoma type BIFs are associated with volcanic arcs and are typically found in Archean greenstone belts. Lake Superior-type banded iron formations The majority of Lake Superior, or simply Superior, type BIFs are located on stable continental platforms and were mainly deposited in Paleoproterozoic times.

Labrador Iron Mines Holdings Limited :: Deposit Types

The Labrador iron deposits are composed of iron formations of the Lake Superior-type. The Lake Superior-type iron formation consists of banded sedimentary rocks composed principally of bands of iron oxides, magnetite and hematite within quartz (chert)-rich rock, with variable amounts of silicate, carbonate and sulphide lithofacies.

Paleoproterozoic basin development and sedimentation in ...

Tidal deposits in the early Proterozoic basin of the Lake Superior region-the Palms and the Pokegema Formations: evidence for subtidal-shelf deposition of Superior-type banded iron-formations Ojakangas, R.W.

Lake Superior Type Banded Iron Formation - orenji

(Precambrian Superior-type banded iron formations and Rapitan-type iron formations) and Table DR2 [exhalites Banded iron formation to iron ore: A record of the . Banded iron formations (BIFs) record chang- . wt% Fe) iron ore from Lake Superior–type BIF is thought to have occurred post 2.2 Ga, after the GOE .

Gunflint chert - Wikipedia

The Gunflint chert (1.88 Ga) is a sequence of banded iron formation rocks that are exposed in the Gunflint Range of northern Minnesota and northwestern Ontario along the north shore of Lake Superior. The black layers in the sequence contain microfossils that are 1.9 to 2.3 billion years in age.

Secret Bases wiki • Banded iron formation

A typical banded iron formation consists of repeated, thin layers (a few millimeters to a few centimeters in thickness) of silver to black iron oxides, either magnetite (Fe 3 O 4) or hematite (Fe 2 O 3), alternating with bands of iron-poor shales and cherts, often red in color, of similar thickness, and containing microbands (sub-millimeter) of iron oxides.

GEOL342 - Sedimentation and Stratigraphy

Precambrian banded iron formations (BIFs): During the early Archean, O 2 was present only in trace quantities, so ferrous iron could exist in solution in the oceans. Indeed, because the contemporary atmosphere was rich in CO 2, fresh and ocean waters were probably more acidic, facilitating the release of iron through weathering.

Canadian Journal of Earth Sciences - NRC Research Press

The base of the exposed iron formation is composed of three lithofacies, including lower clastics that grade into the overlying banded iron formation that in turn grades upward into granular iron formation. This succession is capped by chloritic metadiabases locally termed the Summit Hill Sill and Pillar Intrusive.

Banded iron formations (figure 1). formed rapidly

Banded iron formations formed rapidly Harry Dickens A banded iron formation (BIF) is a sedimentary rock characterized by alternating bands of iron oxide ... Algoma ­type and Superior type iron formations are similar in mineralogy.4 Superior­type deposits are by far the most economically important type of BIFs globally, and are situated in ...

Iron Ore - Mining Artifacts

Magnetite bearing banded iron formation is currently mined extensively in Brazil, which exports significant quantities to Asia, and there is a large and developing magnetite iron ore industry in Australia.

Banded iron formation explained

A typical banded iron formation consists of repeated, thin layers (a few millimeters to a few centimeters in thickness) of silver to black iron oxides, either magnetite (Fe 3 O 4) or hematite (Fe 2 O 3), alternating with bands of iron-poor shales and cherts, often red in color, of similar thickness, and containing microbands (sub-millimeter) of iron oxides.

Spectral Properties of Lake Superior Banded Iron Formation ...

Lake Superior Type (LST) banded iron formation (BIF) was investigated as a spectral and possible process analog to these deposits. In northern Michigan, LST BIF formed in a sedimentary, continental shelf or shallow basin environment under stable tectonic conditions, and the oxide facies contains gray, crystalline hematite.

BANDED IRON FORMATIONS AND THE EARLY GRANULAR ...

category he called Superior-type iron formation, and these ... Superior-type iron formations are associated with deep water shale and turbidites, whereas those with abundant GIFs are ... 86 BANDED IRON FORMATIONS AND THE EARLY ATMOSPHERE. hydrothermal activity (Isley and Abbott, 1999). It .

Formations of Banded Iron in World | Metals | Metallurgy

This concept can be applied worldwide to all types of banded iron- formation, to the Algoma-type as well as to the Superior-type. Figure 2.7 illustrates the relative position of iron-formation facies in a restricted sedimentary basin.

A CLASSIFICATION OF IRON FORMATIONS BASED ON .

tions composed mainly of thinly banded chert and iron minerals; (2) ironstones commonly consisting ... The Lake Superior type was deposited with quartz-ite, dolomite and black shale in continental-shelf ... Keyworils: iron formation, ironstone, Lake Superior type, Algoma 1yps, dspositional environment' oceanic ridge, volcanic arc, continental ...

Iron I - Michigan State University

Iron-formations have played an important part in the settlement and economic development of the Lake Superior region, for these rocks are the source and host for a vast majority of the iron ore produced in North America. The map below shows that iron formations are .

1999 Lake Superior Field Trip - Part 1

Major geologic features encountered on the field trip include: Archean granulites and migmatites, Archean greenstone belts, Banded Iron formations, the Keweenawan Rift, The Duluth Layered Complex, and the Lake Superior basin. What follows are notes and images from our department's field trip. By definition they are a bit hodge-podge in character.

Neoarchean Algoma-type banded iron formations ... - DeepDyve

1 Introduction Iron ore deposits hosted in banded iron formations (BIF) account for the majority of current world production and >31,000 Mt of high-grade hematite resources of iron ore. Gross (1965, 1983) distinguished two types of Precambrian BIF, namely, the continent-derived Superior and the volcano-sedimentary Algoma-type deposits.

QUADRILÁTERO FERRÍFERO FIELD TRIP 24-25 October 2013

orogenic sedimentary assemblages, including a Lake Superior type banded iron formations (4) the Itacolomi Group, composed of sandstones and conglomerates. The QF mining district is the most important gold and iron producer in Brazil. (Alkimin and Noce, 2006). Historical production and present gold reserves exceed 1.000 t.

Earth Resources Further Reading Week 3 - BIFs Flashcards ...

Earth Resources Further Reading Week 3 - BIFs. STUDY. PLAY. ... In banded iron formations the Fe and Si appear to. Have been derived from the ocean itself rather than a continental source as is the case for ironstones. ... Superior type BIF's ceased forming after this event.

Formation of Arizona Minerals through Geologic Time Jan C ...

Banded iron formations (BIF) are common in the Early Proterozoic. The Superior type of BIF consists of thinly laminated rocks of the silica (chert) and iron oxide (hematite and magnetite), with iron silicate, iron carbonate, and iron sulfide. BIF are associated with chert, dolomite, quartzite, black carbon-bearing shale, and volcanic rocks.

109 BANDED IRON FORMATION IN INDIA ... - PowerShow

View Banded Iron Formation In India presentations online, safely and virus-free! Many are downloadable. Learn new and interesting things. Get ideas for .

Chapter 9 Flashcards | Quizlet

Start studying Chapter 9. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. ... Superior province to the Hearne and Wyoming province. ... The Proterozoic cyclic succession of the banded iron formations is a. quartz sandstones, arkoses, conglomerates, basalts.

File:Jaspilite banded iron formation, Soudan Underground ...

Superior-type iron-formations were deposited in relatively shallow water, continental shelf settings. The Soudan Iron-Formation is exposed in & around the town of Soudan, Minnesota at roadcuts, glacially-eroded outcrop knobs, surface mines, and underground mines.

Banded iron formation and Jaspillite Types and Facts

Types of Banded iron formation are Algoma-type, Lake Superior-type, Superior-type and Taconite whereas the types of Jaspillite are Algoma-type, Lake Superior-type and Superior-type.During historic times, some rocks depending on their hardness were used to create Pictographs and Petroglyphs. Rocks which are hard were generally not used.
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