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A methodology for disaggregation and textural analysis of quartz-cemented sandstones

Sarah A. Maithel, Leonard R. Brand and John H. Whitmore
A methodology for disaggregation and textural analysis of quartz-cemented sandstones
Journal of Sedimentary Research (July 2019) 89 (7): 599-609

Abstract

Sandstone textures provide critical information for reservoir modeling and interpreting depositional processes. While loose sand textures are easy to describe, various authors have developed thin-section and image-analysis techniques to characterize lithified deposits that were assumed impossible to disaggregate successfully. These methods are effective but tedious, and are generally not feasible for processing many samples. We present a new methodology for disaggregating quartz-dominated sandstones cemented by quartz overgrowths, with application to the Permian Coconino Sandstone of northern and central Arizona, USA. Textural parameters of the disaggregated sand were measured using a laser diffraction particle analyzer. Our average grain sizes from laser analysis are coarser than those from thin section (as expected), but trends from the analyzer correlate well with thin-section results. This strong correlation strengthens the validity of both methods and suggests that disaggregation and whole-particle analysis may effectively replace petrographic techniques in many textural studies. We hope that our methods, which increase the efficiency of grain-size analysis, will expand the potential for collecting textural data from quartz-cemented sandstones.


ISSN: 1527-1404
EISSN: 1938-3681
Serial Title: Journal of Sedimentary Research
Serial Volume: 89
Serial Issue: 7
Title: A methodology for disaggregation and textural analysis of quartz-cemented sandstones
Affiliation: Loma Linda University, Department of Earth and Biological Sciences, Loma Linda, CA, United States
Pages: 599-609
Published: 201907
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 80
Accession Number: 2019-092893
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 8 tables, sketch map
N35°19'32" - N35°19'32", W112°52'39" - W112°52'39"
N35°13'30" - N35°13'30", W112°29'03" - W112°29'03"
Secondary Affiliation: Cedarville University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 2019
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