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GEOREF RECORD

Case hardening; turning weathering rinds into protective shells

Ronald I. Dorn, William C. Mahaney and David H. Krinsley
Case hardening; turning weathering rinds into protective shells (in Rock and mineral coatings; records of climate change, pollution, and life, Michael Schindler (editor) and Ronald I. Dorn (editor))
Elements (June 2017) 13 (3): 165-169

Abstract

Case hardening is the process by which the outer shell of an exposed rock surface hardens due to near-surface diagenesis. Rock coatings and weathering rinds are distinct phenomena: rock coatings accrete on surfaces; weathering rinds derive from mineral dissolution and mechanical fracturing of the outer millimeters of a rock to create porosity. Ongoing reaction with rain, dew, or melted snow results in the downward migration of rock-coating components into weathering-rind pores. Initially, pore infilling protects the outer surface of the rock from flaking. As case hardening progresses, however, ongoing mineral dissolution underneath the case-hardened zone eventually leads to detachment. This sudden loss can destroy rock art, the surfaces of stone monuments, and facing stones of buildings.


ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 13
Serial Issue: 3
Title: Case hardening; turning weathering rinds into protective shells
Title: Rock and mineral coatings; records of climate change, pollution, and life
Author(s): Dorn, Ronald I.Mahaney, William C.Krinsley, David H.
Author(s): Schindler, Michaeleditor
Author(s): Dorn, Ronald I.editor
Affiliation: Arizona State University, School of Geographical Sciences & Urban Planning, Tempe, AZ, United States
Affiliation: Laurentian University, Department of Earth Sciences, Sudbury, ON, Canada
Pages: 165-169
Published: 201706
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 30
Accession Number: 2017-050445
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N30°19'60" - N30°19'60", E35°25'60" - E35°25'60"
Secondary Affiliation: Quaternary Surveys, CAN, CanadaUniversity of Oregon, USA, United States
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201727
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