Research Article| February 01, 2014 Parasequence types in shelfal mudstone strata—Quantitative observations of lithofacies and stacking patterns, and conceptual link to modern depositional regimes Kevin M. Bohacs; Kevin M. Bohacs ExxonMobil Upstream Research Company, P.O. Box 2189, Houston, Texas 77252, USA Search for other works by this author on: GSW Google Scholar O. Remus Lazar; O. Remus Lazar ExxonMobil Upstream Research Company, P.O. Box 2189, Houston, Texas 77252, USA Search for other works by this author on: GSW Google Scholar Timothy M. Demko Timothy M. Demko ExxonMobil Upstream Research Company, P.O. Box 2189, Houston, Texas 77252, USA Search for other works by this author on: GSW Google Scholar Geology (2014) 42 (2): 131–134. https://doi.org/10.1130/G35089.1 Article history received: 05 Sep 2013 rev-recd: 22 Oct 2013 accepted: 24 Oct 2013 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Kevin M. Bohacs, O. Remus Lazar, Timothy M. Demko; Parasequence types in shelfal mudstone strata—Quantitative observations of lithofacies and stacking patterns, and conceptual link to modern depositional regimes. Geology 2014;; 42 (2): 131–134. doi: https://doi.org/10.1130/G35089.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Mudstone strata have a vast variety of physical, biogenic, and chemical attributes at the lamina to bed scale (approximately millimeters to decimeters thick). Our observations of more than 7 km of Paleozoic to Cenozoic mudstones revealed ordered patterns in this variety, i.e., recurrent associations of lithofacies, bedding style, sedimentary structures, and stratal architecture at bedset to parasequence scales (approximately decimeters to meters thick). We quantified characteristics of each association and their stacking patterns in vertical succession and linked them to sets of depositional processes. Most shelf mudstone strata appear to have accumulated in one of three facies association successions (FASs) that can be related to depositional regimes through characteristic modes of sediment transport and accumulation, as well as variations in benthic-energy and oxygen levels. We interpret these three FASs as records of mud accumulation on different portions of continental shelves that were dominated by storm waves, river floods, or tidal currents. Each FAS records a distinct parasequence type. This approach can help fully integrate insights from oceanographic studies into more robust interpretations of the rock record and rock-property maps. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.