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A compositional classification for grain assemblages in fine-grained sediments and sedimentary rocks; discussion

Wayne K. Camp, Sven Egenhoff, Juergen Schieber and Roger M. Slatt
A compositional classification for grain assemblages in fine-grained sediments and sedimentary rocks; discussion
Journal of Sedimentary Research (January 2016) 86 (1): 1-5

Abstract

Milliken's (2014) classification scheme for fine-grained sediments and sedimentary rocks is an attempt to provide an improved classification that relies on interpreted grain origin to replace existing nomenclature schemes based on sedimentary structures, grain size, and composition. Milliken posits that existing terminology is confusing and therefore proposes new terms, viz. tarl, carl, and sarl, to define three main types of mudstone categories. We consider the proposed classification impracticable because there are: (a) ambiguities associated with interpreting grain origins (intrabasinal or extrabasinal), (b) difficulties in determining the original mineralogy of diagenetically altered particles, and (c) requirements for specialized equipment and techniques not widely available to many geologists. In our opinion, the proposed classification does not improve geological understanding over prior established classification approaches.


ISSN: 1527-1404
EISSN: 1938-3681
Serial Title: Journal of Sedimentary Research
Serial Volume: 86
Serial Issue: 1
Title: A compositional classification for grain assemblages in fine-grained sediments and sedimentary rocks; discussion
Affiliation: Anadarko Petroleum Corporation, The Woodlands, TX, United States
Pages: 1-5
Published: 201601
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 19
Accession Number: 2016-083548
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: For reference to original see Milliken, K., Journal of Sedimentary Research, Vol. 84, p. 1185-1199, 2014
Secondary Affiliation: Colorado State University, USA, United StatesIndiana University, USA, United StatesUniversity of Oklahoma, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, 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: 201640
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