NDLI: Automated mineralogical methodology to study carbonate grain microstructure: an example from oncoids

Content Provider	Springer Nature Link
Author	Amao, Abduljamiu Olalekan Al Ramadan, Khalid Koeshidayatullah, Ardiansyah
Copyright Year	2016
Abstract	Oncoids collected from an arid intertidal embayment of the Gulf of Aqaba, Saudi Arabia, were examined for their morphology and mineralogical composition. This study tested a methodological approach for studying oncoid microstructure and chemical/mineralogical composition in detail. The method was applied to more than 30 oncoid samples, and examined internal morphology and composition via automated mineralogy and petrographic methods, deploying quantitative evaluation of minerals by scanning electron microscopy (QEMSCAN). The QEMSCAN analysis system gathers X-ray and backscattered electron data from predefined points on a sample and interprets it in mineralogical terms by comparisons with a spectral library. Volumetric modal analysis, a function of the cumulative data obtained, is then used to quantify the mineral species present in the sample. The most abundant minerals in this study consist of calcium carbonate (60–70 %). Quartz dominates the detrital trapped grains (19.5 %). Potassium feldspar and albite constitute 5.6 and 3.4 %, respectively. Minerals such as illite, chlorite, biotite, muscovite, smectite, kaolinite, apatite, and ilmenite and siderite individually make up less than 1 % of the overall oncoid composition. Unlike traditional light microscope petrography, X-ray fluorescence and X-ray diffraction methods, the proposed technique has several advantages including, but not limited to, preservation of the oncoid microstructure, porosity and pore size estimation, elemental distribution of major minerals, determination of the chemical composition of grains as well as the cement, and relatively high accuracy of elemental compositional data taken from polished sections. This study shows that QEMSCAN can provide an effective and robust tool in analyzing different components of oncoids and other carbonate grains.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	8
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	QEMSCAN Mineralogy Oncoids Lamella Cortex Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The hydrogeology of high-mountain carbonate areas: an example of some Alpine systems in southern Piedmont (Italy)

Biological effects of argentine asbestos: mineralogical and morphological characterisation

Effects of weathering on characteristics of rocks in a subtropical climate: weathering morphology, in situ, laboratory and mineralogical characterization

On the applicability of geomechanical models for carbonate rock masses interested by karst processes

Karst spring catchment: an example from Dinaric karst

Effect of freeze–thaw on hydraulic conductivity and microstructure of soft soil in Shanghai area

Robust shallow water models

Anomalous arsenic concentrations in the Ďurkov carbonate geothermal structure, eastern Slovakia

Unconventional gas resources in China

Automated mineralogical methodology to study carbonate grain microstructure: an example from oncoids

Similar Documents

The hydrogeology of high-mountain carbonate areas: an example of some Alpine systems in southern Piedmont (Italy)

Biological effects of argentine asbestos: mineralogical and morphological characterisation

Effects of weathering on characteristics of rocks in a subtropical climate: weathering morphology, in situ, laboratory and mineralogical characterization

On the applicability of geomechanical models for carbonate rock masses interested by karst processes

Karst spring catchment: an example from Dinaric karst

Effect of freeze–thaw on hydraulic conductivity and microstructure of soft soil in Shanghai area

Robust shallow water models

Anomalous arsenic concentrations in the Ďurkov carbonate geothermal structure, eastern Slovakia

Unconventional gas resources in China

Automated mineralogical methodology to study carbonate grain microstructure: an example from oncoids