Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A dominant tectonic signal in high-frequency, peritidal carbonate cycles? A regional analysis of liassic platforms from western tethys
Journal of Sedimentary Research, Volume 79, No. 6, Year 2009
Notification
URL copied to clipboard!
Description
Meter-scale, peritidal carbonate cycles are a common feature of the geological record but debate continues about what processes lead to their formation. Three conceptual models, or a combination thereof, are commonly invoked to explain cycle formation; eustasy, tectonics, or autocyclicity. These three models are tested with a large new dataset from different Early Jurassic plate margins from western Tethys. Study of seven logged sections from Spain, Italy, Greece, Tunisia, Morocco, and Gibraltar enables an analysis of the possible roles of local versus regional patterns and controls on cyclicity within a Sinemurian time slice. Cycle types are diverse and include shallowing-upward cycles (parasequences) but also deepening-upwárd and diagenetic cycles (high-frequency sequences) and subtidal cycles. Numbers of cycles per section and cycle stacking patterns within this time slice vary from section to section. Statistical tests (runs tests, time series, and bundling) all indicate random stacking of cycles within sections and an absence of any bundling of thicknesses or of facies trends. Assessment of cycle types by their occurrence and stacking patterns indicates little support for either eustasy or autocyclicity being the dominant cycle-forming mechanism. However, the variability in numbers of cycles per section, thickness variations of the sections, cycle type variability, and randomness of stacking patterns all favor a pulsed, tectonic control for the creation and filling of accommodation space. This conclusion is further supported by evidence that has largely arisen during the course of this study of syndepositional extensional tectonics in the Sinemurian on these rifted Tethyan margins. Although tectonics appears to be the dominant control, superimposed eustasy and/or autocyclic processes cannot be discounted. © 2009, SEPM (Society for Sedimentary Geology).
Authors & Co-Authors
Bosence, Dan W.J.
United Kingdom, Egham
Royal Holloway, University of London
Procter, Emily
United Kingdom, Egham
Royal Holloway, University of London
Aurell, Marcos
Spain, Zaragoza
Universidad de Zaragoza
Kahla, Atef Bel
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Marcelle, Boudagher Fadel
United Kingdom, London
University College London
Casaglia, Francesca
United Kingdom, Egham
Royal Holloway, University of London
Cirilli, Simonetta
Italy, Perugia
Piazza Università
Mehdie, Mohammed
Morocco, Kenitra
Université Ibn Tofail
Nieto, Luís Miguel
Spain, Jaen
Universidad de Jaén
Rey, Javier
Spain, Jaen
Universidad de Jaén
Scherreiks, Rudolph
Germany, Munich
Geobgisclie Staatssammlung
Soussi, M.
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Waltham, David A.
United Kingdom, Egham
Royal Holloway, University of London
Statistics
Citations: 108
Authors: 13
Affiliations: 8
Identifiers
Doi:
10.2110/jsr.2009.038
ISSN:
15271404
Study Locations
Morocco
Tunisia