RT Conference Proceedings
T1 Factors Controlling Oncoid Distribution in the Inner Areas of a Late Kimmeridgian Carbonate Ramp (Northeast Spain)
A1 Sequero López, Cristina
A1 Bádenas Lago, Beatriz
A1 Aurell, Marcos
A2 Boughdiri, Mabrouk
A2 Bádenas Lago, Beatriz
A2 Selden, Paul
A2 Jaillard, Etienne
A2 Bengtson, Peter
A2 Granier, Bruno R.C.
AB The factors controlling the oncoid distribution in the interior areas of a latest Kimmeridgian shallow carbonate ramp were examined based on a detailed sedimentological and petrographic analysis of the upper sequence of the Higueruelas Formation (Iberian Basin, Northeast Spain). Four types of oncoids are defined: small micrite-dominated type I and II oncoids are generally found in low proportion in all sub-environments (from backshoal/washover, lagoon to intertidal). Large Bacinella-dominated type III and IV oncoids predominate in low-energy lagoonal areas. Variable energy water, oligotrophic conditions and probably low sedimentation rates controlled oncoid growth and distribution, thus highlighting their potential as palaeo-environmental proxies.
SN 978-3-030-01451-3
SN 978-3-030-01452-0
YR 2019
FD 2019-02-07
LK https://hdl.handle.net/20.500.14352/116099
UL https://hdl.handle.net/20.500.14352/116099
LA eng
NO Sequero, C., Bádenas, B., & Aurell, M. (2019). Factors controlling oncoid distribution in the inner areas of a late kimmeridgian carbonate ramp(Northeast spain). En M. Boughdiri, B. Bádenas, P. Selden, E. Jaillard, P. Bengtson, & B. R. C. Granier (Eds.), Paleobiodiversity and Tectono-Sedimentary Records in the Mediterranean Tethys and Related Eastern Areas (pp. 171-174)
DS Docta Complutense
RD 16 may 2025