+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Recognizing and characterizing key stratigraphic surfaces and horizons that delineate genetic units within the Iola Limestone using temporal and spatial trends in conodont distribution patterns and taphonomy; Upper Pennsylvanian of Kansas



Recognizing and characterizing key stratigraphic surfaces and horizons that delineate genetic units within the Iola Limestone using temporal and spatial trends in conodont distribution patterns and taphonomy; Upper Pennsylvanian of Kansas



Abstracts with Programs - Geological Society of America 35(2): 5



Sequence stratigraphic studies of the Iola Limestone in Kansas and adjacent states reveal more complexity than previously illustrated using the cyclothem model. The Iola Limestone and its members have long been considered a "classic" Kansas Cyclothem, representing one gradual transgression and regression. This model was supported by the stacking patterns of major lithofacies and temporal trends in conodont abundance and diversity. Stratal patterns revealed by the lateral tracing of key stratigraphic surfaces and horizons suggest that the Iola contains at least two major T-R units or High Frequency Sequences. Temporal trends in conodont distribution patterns appear to support this interpretation. Conodonts were recovered from closely spaced vertical samples from several sections of the Iola in eastern Kansas, and temporal trends in diversity, abundance (elements/kg), relative abundance, and taxonomic composition were examined. Generic diversity of conodonts appears to be controlled by the type of stratigraphic surface, with abrupt drops in diversity appearing in samples directly above sequence boundaries, but with abrupt increases in diversity occurring in samples directly overlying both major and minor flooding surfaces. Concentrations of conodont elements occur in samples directly above all key stratigraphic surfaces. Sequence boundaries are the primary influence on stratigraphic ranges of conodont genera in the Iola. Several distinct fossil assemblages are illustrated by these boundaries. Conodonts were recovered from samples directly above flooding surfaces and unconformities in the Iola and examined along a north-south transect to illustrate spatial trends in distribution patterns and taphonomy. Conodont distribution patterns suggest a correlation between sample composition and the relative location of the stratigraphic surface within the basin (updip versus downdip). Basinal trends of key stratigraphic surfaces within marine Paleozoic sequences can be characterized using trends in the distribution and taphonomy of conodonts.

Accession: 018447151

Download citation: RISBibTeXText


Related references

Spatial trends in conodont distribution patterns and taphonomy in key stratigraphic surfaces and horizons that delineate genetic units within the Iola Limestone; Upper Pennsylvanian of Kansas and; Iowa. Geological Society of America 41.4, 2009

Conodont taphonomy and distribution patterns as a tool for recognizing and characterizing key surfaces and horizons within a sequence stratigraphic framework in the Upper Pennsylvanian of Kansas. Abstracts with Programs - Geological Society of America 34(2): 26, 2002

Correlating and characterizing small-scale flooding surfaces within a high-frequency sequence using conodont distribution patterns; Iola Limestone (Upper Pennsylvanian), Midcontinent USA. Abstracts with Programs - Geological Society of America 38(4): 4, 2006

This transgression will not stand; a comparison and characterization of a high frequency sequence and flooding surfaces using conodont distribution patterns and sequence stratigraphy; Iola Limestone; Upper Pennsylvanian, Iowa and Kansas. Geological Society of America 40.5, 2008

The stratigraphic significance of a fossiliferous shale in the lower part of the Raytown Limestone Member of the Iola Limestone Upper Pennsylvanian in eastern Kansas. Geological Society of America 43.5, 2011

The Iola Limestone; a classic Kansas cyclothem, or is it? Questions from an analysis of vertical and lateral facies patterns; Upper Pennsylvanian of Kansas and Iowa. Geological Society of America 42.2, 2010

A tale of two cyclothems; a comparison of two sections of the Iola high frequency sequence using sequence stratigraphy and conodont distribution patterns Upper Pennsylvanian; Iowa and Kansas. Abstracts with Programs - Geological Society of America 39(3): 57, 2007

The genetic stratigraphy of the Iola Limestone (Upper Pennsylvanian, Missourian) of northeastern Kansas. Abstracts with Programs - Geological Society of America 21(1): 16, 1989

Genetic stratigraphy and paleogeographic development of the Iola Limestone and Lane Shale (Missourian, Upper Pennsylvanian) of northeastern Kansas. Abstracts with Programs - Geological Society of America 20(2): 122, 1988

Sub-cyclothem scale stratigraphy of the Iola Limestone (Missourian/ Upper Pennsylvanian) along the outcrop belt from Iowa to Kansas. Abstracts with Programs - Geological Society of America 37(5): 80, 2005

Sequence stratigraphy of an Upper Pennsylvanian, Midcontinent cyclothem from North America (Iola Limestone, Kansas and Missouri, USA). Facies: 81-104, 1996

Stratigraphic and spatial distribution of some Upper Pennsylvanian shales in south-central Kansas as related to oil and gas production. AAPG Bulletin 74(5): 597, 1990

Anatomy of a phylloid algal buildup, Raytown Limestone, Iola Formation, Pennsylvanian, Southeast Kansas, U.S.A. Sedimentary Geology 47(3-4): 221-261, 1986

Environmental control of conodont distribution in the Shawnee Group (Upper Pennsylvanian) of eastern Kansas. Paleontological Contr Kans. (Articles): 1-105, 1972

Environmental interpretation of conodont distribution in Upper Pennsylvanian (Missourian) megacyclothems in eastern Kansas. AAPG Bulletin 59(3): 486-509, 1975