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dc.contributor.authorKhanna, Pankaj
dc.contributor.authorPyrcz, Michael
dc.contributor.authorDroxler, André W.
dc.contributor.authorHopson, Heath H.
dc.contributor.authorHarris, Paul M.(Mitch)
dc.contributor.authorLehrmann, Daniel J.
dc.date.accessioned2020-08-16T09:55:42Z
dc.date.available2020-08-16T09:55:42Z
dc.date.issued2020-07-18
dc.date.submitted2020-04-29
dc.identifier.citationKhanna, P., Pyrcz, M., Droxler, A. W., Hopson, H. H., Harris, P. M. (Mitch), & Lehrmann, D. J. (2020). Implications for controls on Upper Cambrian microbial build-ups across multiple-scales, Mason County, Central Texas, USA. Marine and Petroleum Geology, 121, 104590. doi:10.1016/j.marpetgeo.2020.104590
dc.identifier.issn0264-8172
dc.identifier.doi10.1016/j.marpetgeo.2020.104590
dc.identifier.urihttp://hdl.handle.net/10754/664606
dc.description.abstractThe morphological architecture and distribution of modern and ancient carbonate systems has been shown to follow spatial-self-organization, however, limited studies describe the morphometrics of microbial carbonates. Upper Cambrian microbial-build-ups outcropping in Central Texas, are exposed laterally (plan view), enabling a study of their morphological architecture and spatial distribution. Drone imagery was acquired to capture the outcrop features and develop a digital terrain model (cm scale resolution) for a bedding plane outcrop (600 × 200 m in size). Four scales of microbial growth (S1- few dm, S2- few m, S3- few tens of m, and S4- few hundreds of m) were identified and mapped. A series of morphometric analysis including Ripley's k, univariate, multivariate, and grouping were conducted and results demonstrate that, the scales S1, S2, and S3 display clustering and the spatial organization of microbial-buildups is naturally organized and not random. Further, as the size of the build-ups increases (from S1–S4), the anisotropy (length/width) increases, their shape becomes oblong, and they become aligned (S2–S4) with the inferred regional winds and tide-associated currents (NE-SW according to the present geography). The S1 scale does not align itself with the regional currents; instead, the build-ups behaved as a baffle during growth, and modified the currents locally, leading to preferential alignment at the edges within S2. As the scales increases in sizes (S2, S3, S4), there is competition for space, and due to regional currents, the larger scales preferentially align parallel to high-energy currents. The trends and spatial relationships identified in this study are particularly relevant and provide a scenario for sub-seismic scale heterogeneities for subsurface microbial hydrocarbon reservoirs.
dc.description.sponsorshipThis research was conducted as a part of the Rice/Trinity Industry Microbial Consortium (funded by Shell, Statoil, Chevron and ConocoPhillips). Special thanks to Chevron Energy Technology Company where the quantitative interrogation aspects of our studies of the build-ups were initiated as a summer internship project for the senior author. Part of this research was possible because of newly accessible outcrops on private lands. We are grateful to owners Don and Rosie Shepard and caretakers Mark and Priscilla Krauss of Eagle Ridge Ranch, and Gene and Patsy Zesch, and Scott Zesch for allowing us to conduct research on their ranches. We would also like to thank the Reviewers, whose critical comments have helped us considerably improve this manuscript as well as Dr. Jeff Dravis for his comments and suggestions throughout the research project. The authors declare no conflicts of interest from their affiliations or funding.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0264817220303731
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Marine and Petroleum Geology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Marine and Petroleum Geology, [121, , (2020-07-18)] DOI: 10.1016/j.marpetgeo.2020.104590 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleImplications for controls on Upper Cambrian microbial build-ups across multiple-scales, Mason County, Central Texas, USA
dc.typeArticle
dc.contributor.departmentAli I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalMarine and Petroleum Geology
dc.rights.embargodate2022-08-07
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Earth, Environmental, and Planetary Sciences, Rice University, 6100 Main Street, MS-126, Houston, TX- 77005, USA
dc.contributor.institutionDepartment of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin TX, 78712
dc.contributor.institutionDepartment of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, 2305 Speedway, Stop C1160, Austin, TX 78712-1692, USA
dc.contributor.institutionCSL - Center for Carbonate Research, Department of Marine Geosciences, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149
dc.contributor.institutionGeoscience Department, Trinity University, San Antonio, Texas 78212, USA.
dc.identifier.volume121
dc.identifier.pages104590
kaust.personKhanna, Pankaj
dc.date.accepted2020-07-11
dc.identifier.eid2-s2.0-85089065827
dc.date.published-online2020-07-18
dc.date.published-print2020-11


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