4.6 Article

Silica and iron mobilization, cave development and landscape evolution in iron formations in Brazil

Related references

Note: Only part of the references are listed.
Article Geosciences, Multidisciplinary

A hydrogeological conceptual model for the groundwater dynamics in the ferricretes of Capao Xavier, Iron Quadrangle, Southeastern Brazil

Jordania Cristina dos Santos Dias et al.

Summary: The study identified two typologies of ferricretes in the Capao Xavier region: structured ferricretes, which have higher porosity and infiltration rates, and detrital ferricretes, which have lower porosity and infiltration rates. The recharge of the Caue aquifer is first facilitated by the karstic-fissural system and later through the ferricrete matrix.

CATENA (2021)

Article Geochemistry & Geophysics

From Fresh Itabirites and Carbonates to Weathered Iron Ore: Mineral Composition, Density and Porosity of Different Fresh and Altered Rocks from the Quadrilatero Ferrifero, Brazil

Diniz Ribeiro et al.

Summary: This study presents a methodology to assess the changes in chemical and physical features of Paleoproterozoic itabirites and dolomites during weathering, by analyzing mineral assemblages from fresh and weathered samples. The research demonstrates an important process of rock matrix dissolution during the weathering of itabirites, leading to the formation of supergene ore with altered mineral compositions.

MINERALS (2021)

Article Geology

Multi-criteria analysis for mapping susceptibility to iron formation caves development in the Gandarela mountain range (MG), southeast Brazil

Iraydes T. S. Nola et al.

Summary: The study focused on caves formed in tropical regions abundant in iron-rich geological materials, aiming to protect these caves while not hindering mining development; a susceptibility map was generated using fuzzy logic and AHP, evaluating the factors involved in the development of iron formation caves and validating the prediction method.

INTERNATIONAL JOURNAL OF SPELEOLOGY (2021)

Article Biodiversity Conservation

16S rRNA Gene Amplicon Sequencing Data of the Iron Quadrangle Ferruginous Caves (Brazil) Shows the Importance of Conserving This Singular and Threatened Geosystem

Camila G. C. Lemes et al.

Summary: The study found that ferruginous caves in the Iron Quadrangle have higher microbial abundance and greater microbial diversity compared to quartzite caves. Additionally, some microbial genera found in these caves are known to produce biomolecules of biotechnological interest.

DIVERSITY-BASEL (2021)

Article Microbiology

Hydrologic Alteration and Enhanced Microbial Reductive Dissolution of Fe(III) (hydr)oxides Under Flow Conditions in Fe(III)-Rich Rocks: Contribution to Cave-Forming Processes

Kayla A. Calapa et al.

Summary: Microbial Fe(III) reduction contributes to void and cave formation in Fe(III)-rich rocks. Groundwater flow can alleviate the passivation of biogenic Fe(II) and accelerate cave formation. Reductive weathering of Fe(III)-rich rocks may be more substantial than previously understood.

FRONTIERS IN MICROBIOLOGY (2021)

Article Environmental Sciences

Biogeochemical cycling of iron: Implications for biocementation and slope stabilisation

Alan Levett et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Article Geochemistry & Geophysics

Microbial weathering signatures in lateritic ferruginous duricrusts

Alan Levett et al.

EARTH AND PLANETARY SCIENCE LETTERS (2020)

Article Environmental Sciences

Biogeochemical cycling of iron oxides in the rhizosphere of plants grown on ferruginous duricrust (canga)

Anat Paz et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Article Multidisciplinary Sciences

Biocement stabilization of an experimental-scale artificial slope and the reformation of iron-rich crusts

Alan Levett et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Article Geosciences, Multidisciplinary

Exotic sulphate and phosphate speleothems in caves from eastern Amazonia (Carajas, Brazil): Crystallographic and chemical insights

Ricardo Lima Figueira et al.

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES (2019)

Article Biodiversity Conservation

Biodiversity surrogates in Amazonian iron cave ecosystems

Leonardo C. Trevelin et al.

ECOLOGICAL INDICATORS (2019)

Article Geochemistry & Geophysics

Stranded landscapes in the humid tropics: Earth's oldest land surfaces

Paulo M. Vasconcelos et al.

EARTH AND PLANETARY SCIENCE LETTERS (2019)

Article Multidisciplinary Sciences

Plotting a future for Amazonian canga vegetation in a campo rupestre context

Daniela C. Zappi et al.

PLOS ONE (2019)

Article Biodiversity Conservation

Habitat Loss Challenges the Conservation of Endemic Plants in Mining-Targeted Brazilian Mountains

Debora M. Salles et al.

ENVIRONMENTAL CONSERVATION (2019)

Review Geology

A review of fractals in karst

Eulogio Pardo-Iguzquiza et al.

INTERNATIONAL JOURNAL OF SPELEOLOGY (2019)

Article Microbiology

Goethite Reduction by a Neutrophilic Member of the Alphaproteobacterial Genus Telmatospirillum

Emma J. Gagen et al.

FRONTIERS IN MICROBIOLOGY (2019)

Article Geosciences, Multidisciplinary

Calibrating denudation chronology through 40Ar/39Ar weathering geochronology

Paulo M. Vasconcelos et al.

EARTH-SCIENCE REVIEWS (2018)

Article Geochemistry & Geophysics

Age and evolution of diachronous erosion surfaces in the Amazon: Combining (U-Th)/He and cosmogenic 3He records

H. S. Monteiro et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2018)

Article Geosciences, Multidisciplinary

A Combined (U-Th)/He and Cosmogenic 3He Record of Landscape Armoring by Biogeochemical Iron Cycling

H. S. Monteiro et al.

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE (2018)

Article Biotechnology & Applied Microbiology

Microbial Diversity in Actively Forming Iron Oxides from Weathered Banded Iron Formation Systems

Emma J. Gagen et al.

MICROBES AND ENVIRONMENTS (2018)

Article Multidisciplinary Sciences

Mining drives extensive deforestation in the Brazilian Amazon

Laura J. Sonter et al.

NATURE COMMUNICATIONS (2017)

Review Geosciences, Multidisciplinary

An updated global review of solutional weathering processes and forms in quartz sandstones and quartzites

Robert A. L. Wray et al.

EARTH-SCIENCE REVIEWS (2017)

Article Chemistry, Multidisciplinary

On the Mechanism of the Dissolution of Quartz and Silica in Aqueous Solutions

Frank K. Crundwell

ACS OMEGA (2017)

Article Engineering, Environmental

Influence of Dissolved Silicate on Rates of Fe(II) Oxidation

Andrew S. Kinsela et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

Article Geosciences, Multidisciplinary

The Orosirian-Statherian banded iron formation-bearing sequences of the southern border of the Espinhaco Range, Southeast Brazil

Vassily Khoury Rolim et al.

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES (2016)

Article Geosciences, Multidisciplinary

Evidence of biogeochemical processes in iron duricrust formation

Alan Levett et al.

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES (2016)

Article Geosciences, Multidisciplinary

Iron solubility, colloids and their impact on iron (oxyhydr)oxide formation from solution

Jens Baumgartner et al.

EARTH-SCIENCE REVIEWS (2015)

Article Geochemistry & Geophysics

(U-Th)/He geochronology of goethite and the origin and evolution of cangas

Hevelyn S. Monteiro et al.

GEOCHIMICA ET COSMOCHIMICA ACTA (2014)

Article Geosciences, Multidisciplinary

Sandstone landforms shaped by negative feedback between stress and erosion

Jiri Bruthans et al.

NATURE GEOSCIENCE (2014)

Review Plant Sciences

Canga biodiversity, a matter of mining

Aleksandra Skirycz et al.

FRONTIERS IN PLANT SCIENCE (2014)

Article Geochemistry & Geophysics

The delicate balance between soil production and erosion, and its role on landscape evolution

A. Dosseto et al.

APPLIED GEOCHEMISTRY (2011)

Article Biodiversity Conservation

Cave lithology determining the structure of the invertebrate communities in the Brazilian Atlantic Rain Forest

Marconi Souza Silva et al.

BIODIVERSITY AND CONSERVATION (2011)

Review Engineering, Civil

Quantifying preferential flow in soils: A review of different techniques

Suzanne E. Allaire et al.

JOURNAL OF HYDROLOGY (2009)

Article Geochemistry & Geophysics

The evolution of weathering profiles through time: New insights from uranium-series isotopes

Anthony Dosseto et al.

EARTH AND PLANETARY SCIENCE LETTERS (2008)

Article Geography, Physical

Relief evolution of the Quadrilatero Ferrifero (Minas Gerais, Brazil) by means of (10Be) cosmogenic nuclei

Andre Augusto Rodrigues Salgado et al.

ZEITSCHRIFT FUR GEOMORPHOLOGIE (2008)

Article Biodiversity Conservation

Plant communities on ironstone outcrops: a diverse and endangered Brazilian ecosystem

Claudia M. Jacobi et al.

BIODIVERSITY AND CONSERVATION (2007)

Review Microbiology

Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction

Karrie A. Weber et al.

NATURE REVIEWS MICROBIOLOGY (2006)

Article Geosciences, Multidisciplinary

Fractal dimension of non-network space of a catchment basin

BSD Sagar et al.

GEOPHYSICAL RESEARCH LETTERS (2004)

Article Geosciences, Multidisciplinary

The association of carbonate alteration of banded iron formation with the Carajas high-grade hematite deposits

SC Guedes et al.

TRANSACTIONS OF THE INSTITUTION OF MINING AND METALLURGY SECTION B-APPLIED EARTH SCIENCE (2003)

Article Engineering, Environmental

Lithic controls on the removal of iron and remediation of acidic mine drainage

ID Sasowsky et al.

WATER RESEARCH (2000)