MATLAB algorithm for grayscale analysis of carbonate cyclicity: Example application to Demopolis chalk (Cretaceous, Alabama)

Citation
Jd. Warren et al., MATLAB algorithm for grayscale analysis of carbonate cyclicity: Example application to Demopolis chalk (Cretaceous, Alabama), COMPUT GEOS, 24(10), 1998, pp. 923-931
Citations number
20
Categorie Soggetti
Earth Sciences
Journal title
COMPUTERS & GEOSCIENCES
ISSN journal
00983004 → ACNP
Volume
24
Issue
10
Year of publication
1998
Pages
923 - 931
Database
ISI
SICI code
0098-3004(199812)24:10<923:MAFGAO>2.0.ZU;2-R
Abstract
Cyclostratigraphic studies of rhythmically bedded pelagic/hemipelagic carbo nate sequences, which are important for understanding paleo-oceanographic c onditions and paleoclimatic controls, can be facilitated by computer-assist ed grayscale analysis. Application of a simple yet flexible algorithm, "doc ore", written for the MATLAB software package and its associated image proc essing toolbox, can be used to generate detailed grayscale curves or time s eries that closely approximate carbonate time series from rapidly scanned i mages. The potential of "docore"-derived grayscale data as proxies for carb onate is demonstrated through comparative analyses of carbonate, organic ca rbon and grayscale data from a core drilled within the Upper Cretaceous Dem opolis Chalk of western Alabama. (C) 1998 Elsevier Science Ltd. All rights reserved.