mineral detection and band ratioing

a peer reviewed paper in the international journal of scientific and engineering research. Landsat 7ETM+ of Bwari local government area of Abuja federal Capital Territory located in the middle belt of Nigeria was used to detect and map locations of hydrothermal alterations. Image processing methods used includes image rectification, spatial and spectral enhancement, band ratio, false colour composition (FCC) and Crosta technique. Band ratios 3/1 and (4/5 – 4/3) suggested the presence of ferric iron minerals and hydroxyl minerals respectively. Clay mineralization was detected using band ratio 5/7. While false colour composite of bands 7:4:2 was employed to delineate potential locations of hydrothermal alterations.

In both the band ratio and false colour composite there was interference from vegetation which affected the results. Subsequently, Principal Component Analysis (PCA) and Crosta technique were employed to supress the interference. Resultant grey tone images from PCA shows white pixels depicting iron-oxide and hydroxyl mineral deposits. To enhance the location of mineral deposits, false colour composite of the resultant images and a sum of the two images were displayed as RGB respectively. Hydrothermal alteration zones hosting the mineral deposits were identified.

The identification of the hydrothermal alteration zones were correlated with the geological map and the ground-truth coordinates of already existing mines obtained from the study area.



Website:

https://www.ijser.org/researchpaper/Mineral-Detection-and-Mapping-Using-Band-Ratioing.pdf

Simple

Date (Creation)
2014-12-01
Date (Publication)
2014-12-01
Date (Revision)
Citation identifier
https://www.mica-project.eu/ / MICA_B3-127

MICA WP3 2018-11-03T15:16:00 Record extracted from Batch 3 spreadsheet

Other citation details

No other citation details provided
Purpose

Purpose for data generation is not known
Status
Completed
Point of contact
Organisation name Individual name Electronic mail address Role

International Journal of Scientific & Engineering Research

 		Resource provider
Maintenance and update frequency
Not planned
dataCentre

  • MICA

MICA ontology (TemporalScheme)

  • Geological time

MICA ontology (DataScheme)

  • General descriptive information / Paper
Keywords

  • Requirement for data generation: Voluntary
Keywords

  • Method of data or information generation: Academic research

GEMET Concepts

  • Exploration

GEMET Concepts

  • Geology

GEMET Concepts

  • Geophysical

GEMET Concepts

  • Mineralogical

GEMET Concepts

  • Minerals

GEMET Concepts

  • Sciences dealing with the composition, structure, origin of the Earth's rocks

INSPIRE commodities

  • Gold

INSPIRE commodities

  • Silver

INSPIRE commodities

  • Copper

INSPIRE commodities

  • Lead

INSPIRE commodities

  • Tin

INSPIRE commodities

  • Tungsten

INSPIRE commodities

  • Tantalum

INSPIRE commodities

  • Sand and gravel

INSPIRE Enduse Potential

  • Dimension and building stone

INSPIRE commodities

  • Calcite for filler

MICA ontology (DomainScheme)

  • Detailed geophysics

MICA ontology (DomainScheme)

  • Remote sensing (including regional geophysics)
Access constraints
Other restrictions
Use constraints
Other restrictions
Language
English
Topic category
  • Geoscientific information
  • Economy
Description

Bwari area, Nigeria
Geographic identifier
Region within a country (please provide more details)
Hierarchy level
Non geographic dataset
Other

Individual item (e.g. a one-off academic paper or single website)

Conformance result

Title

Data uncertainty
Date
Explanation

Are any uncertainty measures provided (e.g. standard errors, confidence intervals, etc.)?
Pass
No

Conformance result

Title

Quality assurance procedures
Date
Explanation

Are quality assurance procedures described?
Pass
No

Conformance result

Title

Information generation methods
Date
Explanation

Are data or information generation methods formally described?
Pass
Yes

Conformance result

Title

Record review
Date
Other citation details

Reviewed by: British Geological Survey
Explanation

Record validation
Pass
No

Conformance result

Title
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Date (Publication)
2010-12-08
Statement

Organisation source implies that information should be of good quality

Metadata

File identifier
34579b56-abb0-4178-a4b9-0f288ede4e47 XML
Metadata language
English
Character set
MD_CharacterSetCode_utf8
Hierarchy level
Non geographic dataset
Date stamp
2024-11-07
Metadata standard name

ISO19115
Metadata standard version

2003/Cor.1:2006
Metadata author
Organisation name Individual name Electronic mail address Role

British Geological Survey

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Overviews

overview

Keywords

MICA


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