Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Luis M. Agirrezabala"'
Autor:
Aitor Payros, Naroa Martínez-Braceras, Luis M. Agirrezabala, Jaume Dinarès-Turell, Idoia Rosales
Publikováno v:
Journal of Iberian Geology. 48:405-423
Our understanding of the stratigraphic expression of astronomically driven climate-change cycles in the Milankovitch frequency band has improved significantly in recent decades. However, several aspects have been little studied to date, such as the n
Autor:
Ignacio Díaz-Martínez, Mikel A. López-Horgue, Luis M. Agirrezabala, Carlos Cónsole-Gonella, Xabier Pereda-Suberbiola
Publikováno v:
Geological Society, London, Special Publications. 522:237-264
Albian dinosaur tracks from the Monte Grande Formation (Basque–Cantabrian Basin) are described. Sedimentary succession shows seven different facies associations (FAs) with four track-bearing levels (levels 1–4) of a braid delta system. FA 4, a pr
Publikováno v:
Marine and Petroleum Geology. 135:105430
Strontium isotopes have seen common use as a tracer of volcanic-influenced fluids at hydrothermal vents and cold seeps hosted by sedimented rifts. However, for some fluid emissions, no apparent contribution of volcanogenic Sr has been observed, despi
Publikováno v:
Journal of Sea Research. 130:36-48
The opening and ocean floor spreading of the Bay of Biscay began in the earliest Albian. The integrative study of the Albian sedimentary record and its ammonoid fauna (around 250 specimens) from the northern margin of the Basque-Cantabrian Basin indi
Publikováno v:
Journal of Volcanology and Geothermal Research. 337:124-139
Deep-water diatremes and related eruption products are rare and they have been mainly interpreted from seismic-based data. We present lithofacies and geochemistry analysis of two Lower Cretaceous (Albian) deep-water diatremes and associated extra-dia
Autor:
F. Sarrionandia, Luis M. Agirrezabala, Benito Ábalos, P. Puelles, M. Carracedo-Sánchez, José Ignacio Gil-Ibarguchi
Publikováno v:
Lithosphere. 9:441-452
Recently discovered Albian submarine diatremes sample tectonites from the Basque-Cantabrian Basin concealed basement. Garnet-sillimanite gneiss xenoliths provide petrologic, petrofabric, and radiometric evidence on a so-far unidentified early Permian
Publikováno v:
Marine and Petroleum Geology. 66:631-640
An extensive pockmark field with associated methane-seep carbonates has recently been reported from the late Albian (Lower Cretaceous) Ubidepea Mudstone of the Black Flysch Group in the Basque Country, northern Spain, but the exact pathways of the mi
Autor:
Arantxa Bodego, Joaquín García-Mondéjar, Luis M. Agirrezabala, Eneko Iriarte, Mikel A. López-Horgue
Publikováno v:
Cretaceous Research. 55:229-261
The tectonosedimentary study of the southern and north-western margins of the Bortziri–Cinco Villas Palaeozoic Massif, which constitute the eastern margin of the Basque–Cantabrian basin, has yielded a detailed synrift stratigraphic architecture a
Autor:
Etienne Jaillard, M. Gaudin, Christophe Basile, Luis M. Agirrezabala, T. Jacquin, Yohann Poprawski
Publikováno v:
Basin Research. 26:746-766
However salt has a viscous rheology, overburden rocks adjacent to salt diapirs have a brittle rheology. Evidence of deformation within the overburden has been described from diapirs worldwide. Gravity-driven deposits are also present along the flanks
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 390:94-115
Late Albian deep-water sediments of the Black Flysch Group in the Basque-Cantabrian Basin (western Pyrenees) preserve a fossil pockmark field including methane seep carbonates and associated macrofauna. The geometry of the pockmarks is reconstructed