<

alteration and zonation of iron ore in ethiopia

Geology, Geochemistry and Geochronology of the Kenticha Rare

The internal zonation shows high degree of evolution from the border to the core Tantalum is one of the most valuable minerals used in electronic industries, The Kenticha pegmatite field is located in the southern Ethiopia and covers an area of ca Paragenetic Associations, Alterations and Rare Metal Mineralization

Get Price

Nature and characteristics of metasedimentary rock hosted gold and

Jun 6, 2009 2 1 2 Geology of the Ethiopian basement rocks The objectives of this study are to determine rock and alteration types and and source of aqueous fluids involved in the ore formation, and controls on the iron Tadesse et al Tigray, NE to SW trending thrust faults and shear zones are identified

Get Price

THE IRON AND MANGANESE ORE DEPOSITS IN ETHIOPIA Milan

cipal iron and manganese ore occurrences in Ethiopia known till the beginning of 1964 During the emersion periods the process of weathering alteration, known as size, occur in the bordering zones with marble too Normally they are

Get Price

Band 147

on the Blue Nile gorge and the road geology from Addis Ababa towards the le, aluminium ores bauxite, lateritic iron ores, bentonites, industrial clay zones of potassic alteration and development of intermediate argillic alteration

Get Price

Encouraging Gold and Copper Results from Daro Project in Ethiopia

Jan 22, 2018 Artisanal gold mining at the Teklil goldcopper prospect is shown in Figure 4 and altered metabasites, with brecciated stockworks also being found in the vicinity a number of zones of copper bearing metasiltstone up to 20m wide and Classification of the Bikoula Iron Ore Project in Cameroon

Get Price

Hydrothermal alteration in the AlutoLangano geothermal field

Most of the chlorite is ironrich chlorite It is found that the temperatures calculated Keywords Ethiopia geothermal field hydrothermal alteration clay minerals

Get Price

Ethiopia International Geothermal Association

Apr 29, 2005 Geological and Hydrothermal Alteration Mapping of the Doffen Geothermal Prospect and Adjacent altered samples showed the presence of secondary minerals identify zonation on certain mineralogical criteria, which

Get Price

PlatinumGroup Minerals in the Alaskan Type MaficUltramafic

western Ethiopia, 540 km west of the capital Addis Ababa ultramafic sequence show relict magmatic minerals such as forsterite concentric zoning pattern clearly indicate that it is ironrich PtFe alloys can be found in the altered silicates

Get Price

PDF Separation of Alteration Zones on ASTER Data and

Aug 1, 2018 techniques have been applied on ASTER data and iron oxide, argillic, phyllic and propylitic zones have minerals for phyllic and argillic alteration zones have ern Ethiopia, Master of Science Dissertation, Addis Aba

Get Price

Mineral Resource Perspectives 1975 USGS Publications Warehouse

the annual report of the Secretary of the Interior under the Mining and Minerals Paint and wallpaper: mineral pigments such as iron, zinc, and slavia, Sweden, U S S R , Zaire, Zambia, Ethiopia, Samples of the ore zones, alteration

Get Price

Mineral profile British Geological Survey

document we use PGM to refer to platinumgroup minerals ironrich breccias and siliceous alteration zones and the Yubdo laterite deposit in Ethiopia

Get Price

Metasomatism

Metasomatism is the chemical alteration of a rock by hydrothermal and other fluids It is the replacement of one rock by another of different mineralogical and chemical composition The minerals which compose the rocks are dissolved and new mineral Propylitic alteration is caused by iron and sulfurbearing hydrothermal fluids,

Get Price

Interactive Map Altus Strategies Plc

Bauxite Copper Gold Iron Ore Tin Tungsten Zinc that exploit numerous subparallel alteration zones, have returned 13 0 Cu, 6 0 Cu 5 0 Cu

Get Price

Gold prospecting using Remote Sensing International Journal of

Egypt, Saudi Arabia, Sudan, Eritrea, Ethiopia, Yemen, and Somalia The alteration zones are commonly associated with mineralization Another type of iron ore was found in magnetite rich microgranite, which appears in blue turquoise

Get Price

Application of remote sensing and GIS in mineral resource mapping

as general geologic setting, alteration zones, associated rocks, structure, lineaments weathering of which has produced huge iron ore deposits Bright linear features Ethiopia can be better characterized by images from the MOMS|2P

Get Price

Iron Potential of Ethiopia Iron Ore Iron Scribd

study of iron deposits in Ethiopia Iron ore sources in Ethiopia Most large hematite iron ore deposits are sourced from metasomatically altered banded iron In the fractured zones of the ing NNESSW was found in the chlorite schists

Get Price

Identification of hydrothermal alteration minerals associated with

Hyperion data for mapping iron oxidehydroxide minerals and clay mineral assemblages in hydrothermal alteration zones Geothermal potential and origin of natural thermal fluids in the northern Lake Abaya area, Main Ethiopian Rift,

Get Price

Dr AK Sen, Professor in Earth Sciences and Head IIT Roorkee

Ph D Applied Geology 1987 Indian School of Mines, Dhanbad Topic: Geology of Genesis of High Grade Iron Ore Evolution and Genesis of Raremetal Pegmatite, Kenticha, Southern Ethiopia Belt, India for Alteration Zones, Asian Jour

Get Price

Ethiopia Encyclopedia com

Ethiopia contains a variety of distinct topographical zones The establishment of regions was altered with the creation of the transitional government in The country also has metal deposits of manganese, iron ore, platinum and nickel

Get Price

mapping hydrothermal alteration zones in the didinga hills ijrsg

thermal alteration zones, ore minerals, igneous rocks hosting ores, and oxidized the country and borders Uganda, Kenya, and Ethiopia Fig 1, an area that is

Get Price

Iron OxideCuAuREEPAgUCo Systems University of Arizona

Hydrothermal Alteration and Systemscale Zoning 525 13 20 4 1 Types of not ore grades coupled with voluminous hypogene iron oxides This approach Afar region of Ethiopia and adjacent Djibouti where modern basaltic magmatism

Get Price

Ethiopia Mining Industry export gov

Jan 13, 2017 Minerals found in Ethiopia includes gold, platinum, niobium, tantalum, gypsum, clay, lignite, opal, oil shale, laterite iron ore, bentonite, clay,

Get Price

Remote sensing detection of altered zones associated Yerbilimleri

Hydrothermal alteration zones have highlighted role in prospecting mineral and acknowledge the altered hydroxyl and ironoxide minerals in the study region

Get Price

Application of Remote Sensing for Gold Exploration OhioLINK ETD

The results indicated matching of hydrothermal alteration zones with the ASTER image showing FPCS for Ferric oxide minerals PC3 as bright pixels local natives have been along the border with Ethiopia, Uganda, Central African

Get Price

Introducing the Iron Potential Zones Using Remote Sensing Studies

Jul 24, 2013 tial zones were compared with the iron mine position in the south of the area and Keywords: Remote Sensing Geology Lithology Alteration

Get Price

Application of Remote sensing and Spatial Data Integration ITC

to Predictive Mapping of ApatiteMineralized Zones in the are still not fully integrated in the activities of Geological Survey of Ethiopia Iron ore deposits Figure 3 11: Spectral of some alteration minerals showing their characteristic

Get Price

East Africa Metals Inc Harvest Project Fri Aug 24, 2018

EAM, through its Ethiopian subsidiary company Harvest Mining PLC, has received Exhalative siliceous iron formation occurs at the periphery of the mineralized Mineralized lenses and associated alteration have a moderate different grade populations and zones with differing strike and dip orientation within domains

Get Price

Official PDF , 104 pages World Bank Documents Reports

Feb 4, 2014 The report is a joint effort by the Ethiopia Ministry of Mines and the World iron ore make up more than half of the value therefore to provide a better understanding of the sector, and to tailor measures Kamashi Zones

Get Price

Nephrite jade Minerals

Cowell jade has an iron content of up to 7 9 Fe2O3 Within alteration zones as large lenses up to 40 m long by 3 m wide, conformable with lithological

Get Price

hydrothermal alteration mineralogy in geothermal Orkustofnun

The formation of these hydrothermal alteration minerals is Fault zones are excellent places for fluids to circulate and precipitate mineralization Faulting may develop breccia elements: aluminium, titanium, iron, silica, some potassium, and calcium, with most of the base cations in Langano geothermal field Ethiopia

Get Price

Recognition of a porphyry system using ASTER data in Bideghan

Jul 18, 2014 Because the alteration zones recognition are the most important keys for For example, ferrous ore such as Oligist formed along Digital Enhancement of ASTER Data Case Study: Kemashi area, Western Ethiopia, M S

Get Price

Classification, Distribution and Uses of Ores and Ore Springer

which are mined for tin as the mineral cassiterite SnO2, iron as magnetite Fe3O4 sulfates, usually in alteration zones overlying primary deposits Table 2 2

Get Price

Geochemistry, alteration, and genesis of gold mineralization in the

The textural relationships among minerals in these alteration zones indicate that epidote Geochemistry of gold mineralization at Okote, Ethiopia 309 pyrite and ore stage carbonate, vite, pyrite, biotite, iron oxides, and relic plagioclase

Get Price

the lannavaara iron ores northern sweden Sveriges geologiska

The iron ore deposits Kevus, Sattavaara and Teltaja at Lannavaara in northern Sweden occur in and are associated with secondary alterations such as scapolitization and tourma zones, up to 20 m wide, of rich ore are surrounded by lean ore which in the east is barium deposit from the Northern Afar rift Ethiopia

Get Price

PMI Ethiopia Indoor Residual Spraying Supplemental

Ethiopia contains a variety of distinct topographical zones It is a country of minerals of the state include gold, copper, iron ore, zinc, lead and nickel modification of cultural practices, and use of resistant varieties agricultural products

Get Price

Hydrothermal Gold Mineralization and Structural Controls near May

Hydrothermal alterations are dominated by chloritization and sericitization gossan open pit mine in northern Ethiopia by Ezana Mining Development Company EMD controlled gold mineralized zones of gold near Workamba Sericite, biotite, chlorite, iron hydroxides and epidote are other minerals formed during the

Get Price

Tulu Kapi Gold Project: A history of repeated KEFI Minerals

3Kefi Minerals Ethiopia Ltd, 1st floor, Daminarof Building, Bole subcity, and other metals copper, zinc, lead, nickel, iron in Western Ethiopia are genetically albite alteration zones as stacked subhorizontal lenses in a syenite pluton into

Get Price
<