Climate control on banded iron formations linked to orbital

Field exposures of the 2.48-billion-year-old Kuruman Banded Iron Formation reveal a well-defined hierarchical cycle pattern in the weathering profile that is laterally continuous …

PETROGRAPHY AND GEOCHEMISTRY OF THE MASOKE …

Major BIF units in the area of study include: the Masoke Iron Formation, equivalent to Kuruman Formation of the Asbestos Hills Subgroup, the Rooinekke iron formation ... I would like to …

Effects of weathering on the mineralogical composition of banded …

A carbonate-banded iron formation transition in the Early …

more confidence in surface and mine outcrops. This contribution puts on record seven new transition profiles and two resurveyed ones. We try to correlate laterally the lithologies of 15 …

Paleoproterozoic Banded Iron formation-Hosted High Grade Hematite Iron

On a regional scale, these karst-hosted iron ore deposits are located immediately below an angular unconformity, where the Asbesheuwels BIF (mainly the Kuruman Member) …

First detection of extraterrestrial material in ca. 2.49 Ga impact

Here we report geochemical evidence of extraterrestrial material in the only one of these spherule layers where it has not been previously reported, the Kuruman spherule layer …

An Integrated Exploration Approach to the Sishen South Iron Ore …

The mining of iron ore in South Africa dates from between 800 and 1200 AD, with modern exploration and mining starting from 1916. The first production of high-grade banded …

2470 million-year-old banded iron formation reveals a climatic

The modern-like solar cycle might have evolved as early as 2.47 billion years ago, according to synchrotron-radiation-based micro-scale analyses of a Precambrian banded iron …

Prospecting Application for Portions 2 and 3 of the Farm …

for iron and manganese ores employing percussion drilling and bulk sampling on Portions 2 and 3 of the Farm Bishop 671, situated approximately 30 km southwest of Kathu, Kuruman District, …

South Africa: FUCHS' Kuruman is at the heart of iron …

A key differentiator for FUCHS in Kuruman is that it offers a pump-on service, especially for large hydraulic mining shovels, which must always be fully operational for maximum productivity. The main products supplied are …

Petroleum and Coal

Department of Geology and Mining, University of Limpopo, Private Bag X1106, Sovenga 0727, Limpopo Province, South Africa ; Received November 14, 2022; Accepted May 26, 2023 . ...

Major Mines & Projects | Tshipi (Borwa) Mine

Tshipi (Borwa) Mine Open Pit Mine is located 47 km NW from Kuruman, South Africa. Data Access; Keep me signed in. ... Tshipi is exploiting the manganese from the banded iron stones …

Hotazel Mine Near Kuruman, South Africa | The Diggings™

The Hotazel Mine, located near Kuruman in South Africa, was first discovered in 1950. It is an underground mining operation that began production in 1959 and has since been considered a …

Palaeoproterozoic banded iron formation- hosted high-grade …

include the Penge Iron Formation-hosted deposit at Thabazimbi and the Kuruman Iron Formation-hosted deposits at Bovenzeekoebaart and Nauga East (Fig. 1). The latter deposit is also …

Lithofacies and stratigraphy of the Kuruman and Griquatown Iron

The Griquatown Iron-formation (250m) consists essentially of endoclastic iron-formation which is arranged in a number of upward-coarsening orthochemical to allochemical iron-formation …

4 BIF thin section M1, Mamatwan Manganese Mine, Kuruman, …

Download scientific diagram | 4 BIF thin section M1, Mamatwan Manganese Mine, Kuruman, North Cape Province, South Africa. The sample is approximately 2.20–2.22 billion years old. …

Sedimentology of the Kuruman and Griquatown Iron-formations, …

The five zones rich in stilpnomelane lutite (volcanic ash) and chert present in the Kuruman Iron-formation (Fig. 16) can be correlated over the entire strike distance of the …

Understanding the Mechanisms for BIF | Konhauser-webpage

(5) Understanding the Mechanisms for Precambrian Banded Iron Formation . Banded iron formations (BIF) are iron-rich (20-40% Fe) and siliceous (40-50% SiO 2) sedimentary deposits …

Locality map of the Kalahari Manganese Deposit in the Northern …

The Kuruman Formation in the Transvaal Supergroup, Northern Cape Province of South Africa, contains several iron and manganese ore deposits, resulting in numerous studies, particularly …

The structural/stratigraphic development of the Sishen South

The mineralisation process is related to regional scale supergene iron enrichment of Kuruman banded iron formations along the unconformity. During regional tectonism …

The Transvaal-Griqualand West banded iron formation

The Transvaal-Griqualand West banded iron formation: geology, genesis, iron exploitation ... Much research has been conducted on these banded iron formations (BIF) over …

Jaspairs

The Oxidation of the Kuruman Iron Formation in the borehole occurred almost certainly during weathering episode bracketed between about 2.2 Ma by the age of the Ongeluk lavas in the …

Sugilite and associated metamorphic silicate minerals from Wessels Mine

At Wessels Mine, which is located northwest of Kuruman in the northwestern Cape Province, evidence of a widespread and pervasive hydrothermal event which took place around 1300 Ma …

The structural setting of mineralisation at Kolomela Mine, Northern

Kolomela Mine, formerly known as the Sishen South Project, is located approximately 9 km from Postmasburg, in the Northern Cape Province of South Africa. Iron …

Ore-structure relationships at Sishen Mine, Northern Cape, …

Iron ore is primarily concentrated near the top of the Asbesheuwels or Asbestos Hills Subgroup, within the Kuruman Formation. High-grade, hematite-rich, iron-ore deposits in …

Jaspairs

A core drilled near Wolhaarkop in Griqualand West, South Africa intersected a highly oxidized Kuruman Iron Formation below red beds of the Gamagara Formation. The lateral equivalents …

Petrographic and Diagenetic Characteristics of …

The Kuruman Formation in the Transvaal Supergroup, Northern Cape Province of South Africa, contains several iron and manganese ore deposits, resulting in numerous studies, particularly within...

The mineralogy of the manganese-bearing Hotazel …

0 Wessels Mine Nchwaning Mine o Hotazel Mine N 1 o Langdon Annex Mine Middelplaats Mine o o __ __.:Skm Mamatwan Mine Figure3 Outline of the Kalahari manganese basin showing the …

Phosphogenesis in the 2460 and 2728 million-year-old banded iron

The Kuruman Iron Formation deposited at the peak-time of BIF (Klein 2005) that was coincident with the transition from the anaerobic atmosphere to the oxygenic atmosphere that …

Major Mines & Projects | Hotazel Complex

As part of on-going mine planning, HMM plans to operate the Mamatwan and Middelplaats Mines as one entity where the ore mined at Middelplaats Mine will be processed at the MMT Mine …

Palaeontological Impact Assessment for the proposed …

Danielskuil Formation overlies the Kuruman Formation and is composed of reworked Kuruman-type banded iron formation so is granular rather than finely laminated (ibid). It has been …

Sedimentology of the Kuruman and Griquatown Iron-formations, …

Autochthonous ferhythmites of the Kuruman Iron-formation reach a maximum development in a basin near Prieska, whereas orthochemical and allochemical units are more …

Research Portal

The high-grade iron ores hosted in the Kuruman and Griquatown Iron Formations (Asbesheuwels Subgroup) within the Maremane Dome in the Griqualand West region, Northern Cape …

Major Mines & Projects | Kolomela Mine

The iron ore/BIF zone is referred to as the Kuruman Formation. The ores found within this formation comprise the bulk of the higher-grade iron ores in the region. Four distinct high …

A mixed seawater and hydrothermal origin of superior-type banded iron

The Kouambo iron deposit contains banded iron formations (BIFs) and is located in the northwestern margin of the Congo craton.The BIFs are hosted in Palaeoproterozoic Nyong …

Lithofacies and stratigraphy of the Kuruman and Griquatown …

The Kuruman and Griquatown iron-formations are described in detail and a new lithostratigraphic nomenclature is suggested for them. The Kuruman Iron-formation (135-750 metres thick) …

The Kalahari manganese field: an enigmatic association of …

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The Iron Formations of Southern Africa | SpringerLink

Their thickness varies from tens of metres to approximately 100 m at Mupane gold mine (Døssing et al. 2009). ... Beukes NJ (1984) Sedimentology of the Kuruman and …