+ 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

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



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



High-frequency sequences of the Iola Limestone in Iowa and Kansas can be distinguished and correlated using the temporal and spatial distribution of conodonts in conjunction with a sequence stratigraphic analysis. The taphonomic and taxonomic differences of conodonts will help distinguish between depositional environments and the stories lithofacies tell. At least two unconformity-bounded HFS's can be delineated in the Iola Limestone in sections in Iowa and Kansas. This interval was previously interpreted as representing a single cyclothem. The repetition of specific lithofacies in addition to the temporal distribution patterns of conodonts has been used to interpret the Iola Limestone as a single cyclothem. The upward progression of lithofacies from thin transgressive limestone to carbonaceous shale and finally to thick regressive limestone suggests that the Iola represents a single transgressive-regressive unit. A comparison of two sections of the Iola Limestone from Winterset, Iowa and Kansas City, Kansas done using sequence stratigraphic analysis of significant surfaces coupled with an investigation of the temporal and spatial distribution patterns of conodonts using closely spaced samples may contradict this interpretation. The vertical stacking patterns of lithofacies in these sections appears to be very similar, however, the dark shale facies (core shale) in the Iowa section contains many calcareous intervals with a benthic fossil assemblage. The character of this facies and stratal patterns of correlative surfaces suggests that this part of the Iola may be the transgressive part of a cycle.

Accession: 029816031

Download citation: RISBibTeXText


Related references

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

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

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

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

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

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

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, 2003

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 lower Missourian (lowermost Upper Pennsylvanian) cyclothems in the Midcontinent, U.S.A. Abstracts with Programs - Geological Society of America 25(1): 10, 1993

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

Sequence stratigraphy and correlation of middle Cherokee Group (Middle Pennsylvanian, early Desmoinesian) cyclothems from Oklahoma to Iowa. Abstracts with Programs - Geological Society of America 38(1): 4, 2006

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

Assessing models of stratal hierarchy in sequence stratigraphy; composite sequence framework of Midcontinent Missourian Pennsylvanian high-frequency sequences. Abstracts with Programs - Geological Society of America 39(3): 19, 2007

Stratigraphic relationships of Pennsylvanian cyclothems with allostratigraphy and sequence stratigraphy. Pages (unpaginated 2005, 2005

Longer-term climate cyclicity in the Midcontinent Pennsylvanian succession of high-frequency sequences (glacial-eustatic cyclothems); impact on sequence architecture. Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists 2001: 61, 2001