Geochemistry, Alteration and Genesis of Granodiorite hosted Gold
A primary juvenile porphyry type metagranodiorite hosted gold deposition is latter identified in the study area. Carbonate chlorite shear hosted mesothermal lode gold deposition is the other type of gold mineralization which is convincingly studied by earlier researchers.
Metal contamination of the environment by placer and primary gold
DOI: 10.1007/S00254-006-0213-5 Corpus ID: 129915524; Metal contamination of the environment by placer and primary gold mining in the Adola region of southern Ethiopia @article{Getaneh2006MetalCO, title={Metal contamination of the environment by placer and primary gold mining in the Adola region of southern Ethiopia}, author={Worash …
The Adola Fold and Thrust Belt, southern Ethiopia: a re …
The Adola Fold and Thrust Belt of Ethiopia is a late- Precambrian, north–south trending belt of volcanic-sedimentary and ophiolite–like units overlying 'basement rocks' (gneisses and granitic gneisses).
Geology and Gold Mineralization in the Pan-African Rocks of the Adola
Geology and Gold Mineralization in the Pan-African Rocks of the Adola Area, Southern Ethiopia
Lega Dembi gold deposit in southern Ethiopia
The Lega Dembi gold deposit in the Late-Proterozoic, meta-volcanosedimentary Megado belt in southern Ethiopia constitutes the largest primary gold mine in the country.
Metal contamination of the environment by placer and primary gold
Primary and placer gold mining sites in southern Ethiopia were studied to see the contribution of mining to the accumulation of metals in different environmental media.
The Lega Dembi gold mine: an example of shear zone …
The Lega Dembi gold mine: an example of shear zone-hosted mineralization in the Adola greenstone belt, Southern Ethiopia
Metal contamination of the environment by placer and primary gold
Primary and placer gold mining sites in southern Ethiopia were studied to see the contribution of mining to the accumulation of metals in different environmental media. Sediment, water and plant samples were analyzed for Al, Mn, Fe, As, Ni, Cr, Cu, Co, Pb, W, Sb, Mo, Zn and V. Water parameters (pH, Eh, TDS, anions and cations) were …
Thrusts and thrust-related mineralisation in the Lachlan Orogen
Primary and placer gold deposits are mined from the Pan-African Adola volcano-sedimentary sequence, in southern Ethiopia. Two major mineralized belts can be recognized: the Megado ('Gold Belt ...
Origin of the Lega Dembi primary gold deposit, Adola gold …
In the Adola Gold District of Southern Ethiopia the outline of the contacts that separate the greenstone belt and the gneissic terrain defines regional scale ductile to brittle-ductile shear zones.
Research of Heavy Metals Pollution Soil Risk Evaluation by …
Research of Heavy Metals Pollution Soil Risk Evaluation by Means of Engineering in Gold Mining Area, Tongguan, China. Gang Li 1,2,3,4, Nan Lu 1,2,3 ... Worash Getaneh and Alemayehu T 2006 Metal contamination of the environment by placer and primary gold mining in the Adola region of southern Ethiopia J. Environmental …
Solomon Tadesse's research works | Addis Ababa …
Solomon Tadesse's 4 research works with 144 citations and 20,172 reads, including: Genesis of the Shear Zone-related Gold Vein Mineralization of the Lega Dembi Gold Deposit, Adola Gold Field ...
Metal contamination of the environment by placer and …
The study area Location The research area is found in south Ethiopia commonly named as Adola region about 500 km southeast of Addis Ababa (Fig. 1). Within this location the …
Metal contamination of the environment by placer and …
Conclusions The present research conducted in the Adola area of southern Ethiopia showed that: 1. The mining activity contributed to the metal load of the …
Geology and Gold Mineralization in the Pan-African Rocks of the Adola
Primary and placer gold deposits are mined from the Pan-African Adola volcano-sedimentary sequence, in southern Ethiopia. Two major mineralized belts can be recognized: the Megado ('Gold Belt') and the Kenticha Belts. The Kenticha Belt is also known for its rare metal mineralization. Extensive exploration of the area resulted in two …
The geology of the Lega Dembi gold deposit, southern …
Placer gold in the Megado belt was Ærst discovered in ... ploration campaign in the late 1970s by the Adola Gold Exploration Project (AGEP) of the Ethiopian Mineral ... The Adola granite ...
(PDF) Geology, Geochemistry and Geochronology of the Gold
In Ethiopia a number of placer gold occurrences, as well as the Lega Dembi primary gold mining area, are known to date from the Precambrian basement rocks during or postdating granitic intrusion. ... H. and Schandelmeier, H. (1996). Tectonic Evolution of the Neoproterozoic Adola Belt of Southern Ethiopia: Evidence for a Wilson Cycle Process …
Structural control and metamorphic setting of the shear
Geology and Gold Mineralization in the Pan-African Rocks of the Adola Area, Southern Ethiopia ... Gondwana Research. Show abstract. Primary and placer gold deposits are mined from the Pan-African Adola volcano-sedimentary sequence, in southern Ethiopia. Two major mineralized belts can be recognized: the Megado ('Gold Belt') and …
Metamorphism and gold mineralization of the Kenticha–Katawicha area
Download Citation | Metamorphism and gold mineralization of the Kenticha–Katawicha area: Adola belt, southern Ethiopia | I present geological and mineral chemistry results aiming at ...
Adola Gold Mine In Oromiya, Ethiopia | The Diggings™
The gold ore at the Adola Gold Mine is in placer form, which is a type of deposit that has been naturally eroded and transported by water, resulting in the concentration of gold particles in streambeds or sediment layers. The dimensions of the placer deposit at the Adola Gold Mine are currently unknown.
Metal contamination of the environment Tamiru …
by placer and primary gold mining in the Adola region of southern Ethiopia Received: 23 November 2005 Accepted: 7 February 2006 Published online: 3 March 2006 Springer-Verlag 2006 Abstract Primary and placer gold mining sites in southern Ethiopia were studied to see the contribution of mining to the accumulation of metals in different ...
Quartz veins and their features of micro-grain type dissminated gold
Download Citation | Quartz veins and their features of micro-grain type dissminated gold deposits in north-western Sichuan Province | The north-western Sichuan Province, one of the main micro ...
Paper Number: 4570
Statistical data for the period 1942-1996 indicate that a total of 28 tons of gold were extracted from placer deposits in the Adola area by small-scale mining [3].
Genesis of the Shear Zone-related Gold Vein
The Lega Dembi Primary Gold Deposit in southern Ethiopia is related to the shear zone-hosted vein in the Neoproterozoic metamorphosed volcano-sedimentary succession of greenschist- to amphibolite ...
Serpentinites as a possible source of the Adola placer gold
Abstract It is proposed that the Adola placer gold was derived, ultimately, from the ultrabasic rocks which are now represented by serpentinites and talc-schists. During the …
The Lega Dembi gold mine: an example of shear zone …
In the Adola Gold District of Southern Ethiopia the outline of the contacts that separate the greenstone belt and the gneissic terrain defines regional scale ductile to brittle-ductile shear zones.
Geology and mineral potential of Ethiopia: a note on …
A total of 173 placer deposits and occurrences of gold are known in the Adola area, comprising 7200 km 2 ( EMRDC, 1985 ). In the Adola gold field, placer …
Geology and mineral potential of Ethiopia: A note on …
This work presents a geoscientific map and database for geology, mineral and energy resources of Ethiopia in a digital form at a scale of 1:2,000,000, compiled from several sources.
Geology and Gold Mineralization in the Pan-African Rocks of the Adola
Semantic Scholar extracted view of "Geology and Gold Mineralization in the Pan-African Rocks of the Adola Area, Southern Ethiopia" by S. Tadesse
A Generic Approach to Preliminary Economic Evaluation …
The aim of this research project is to provide a preliminary economic assessment tool for the feasibility of mechanized placer gold mining in Ethiopia. This is achieved by …