Pedogenetic Calcretes In Early Syn-Rift Alluvial Systems (Upper Jurassic, West Cameros Basin), Northern Spain

2016 ◽  
Vol 86 (3) ◽  
pp. 268-286 ◽  
Author(s):  
Sara Sacristán-Horcajada ◽  
María Eugenia Arribas ◽  
Ramón Mas
Keyword(s):  
Upper Jurassic ◽  
Northern Spain ◽  
Cameros Basin

The first record of the genus Eurasenia (Ammonitina) from the Upper Jurassic of Asturias (Northern Spain)

Geobios ◽  
1988 ◽  
Vol 21 (6) ◽  
pp. 741-748 ◽  
Author(s):  
Federico Oloriz ◽  
Marta Valenzuela ◽  
José Carlos Garcia-Ramos ◽  
César Suarez de Centi
Keyword(s):  
First Record ◽  
Upper Jurassic ◽  
Northern Spain

Taphonomy and palaeoecology of high-stress benthic associations from the Upper Jurassic of Asturias, northern Spain

2012 ◽  
Vol 358-360 ◽  
pp. 1-18 ◽  
Author(s):  
Franz Theodor Fürsich ◽  
Winfried Werner ◽  
Graciela Delvene ◽  
José Carlos García-Ramos ◽  
David D. Bermúdez-Rochas ◽  
...  
Keyword(s):  
High Stress ◽  
Upper Jurassic ◽  
Northern Spain

scholarly journals Clay minerals as provenance indicators in continental lacustrine sequences: the Leza Formation, early Cretaceous, Cameros Basin, northern Spain

Clay Minerals ◽  
2005 ◽  
Vol 40 (1) ◽  
pp. 79-92 ◽  
Author(s):  
J. Alonso-Azcárate ◽  
M. Rodas ◽  
J. F. Barrenechea ◽  
J. R. Mas
Keyword(s):  
Clay Mineral ◽  
Source Area ◽  
Local Source ◽  
Northern Spain ◽  
Source Areas ◽  
Kübler Index ◽  
Facies Associations ◽  
Mineral Assemblages ◽  
Cameros Basin

AbstractVariations in clay mineral assemblages, changes in Kübler index (KI), and the chemical composition of chlorites are used to identify source areas in the lacustrine materials in the Lower Cretaceous Leza Limestone Formation of the Cameros Basin, northern Spain. This formation has fairly homogeneous lithological characteristics and facies associations which do not allow for identification and characterization of local source areas. The Arnedillo lithosome of the Leza Limestone Formation contains a clay mineral association (Mg-chlorite, illite and smectite) indicative of its provenance. Chlorite composition and illite KI values indicate that these minerals were formed at temperatures higher than those reached by the Leza Formation which indicates its detrital origin. The similarity in the Mg-chlorite composition between the Arnedillo lithosome and the Keuper sediments of the area indicates that these materials acted as a local source area. This implies that Triassic sediments were exposed, at least locally, at the time of deposition of the Leza Formation. The presence of smectite in the Leza Formation is related to a retrograde diagenesis event that altered the Mg-chlorites in some samples.

Thermal history during Mesozoic extension and Tertiary uplift in the Cameros Basin, northern Spain

2001 ◽  
Vol 13 (1) ◽  
pp. 91-111 ◽  
Author(s):  
M. P. Mata ◽  
A. M. Casas ◽  
A. Canals ◽  
A. Gil ◽  
A. Pocovi
Keyword(s):  
Thermal History ◽  
Northern Spain ◽  
Cameros Basin
Sign in / Sign up

Export Citation Format

Share Document