The Ranero Hydrothermal Dolomites (Albian, Karrantza Valley, Northwest Spain) (Record no. 187616)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02901nab a2200289 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2012 xxu ing |
| 041 ## - IDIOMA | |
| Idioma | Inglés |
| 245 00 - TITULO | |
| Título | The Ranero Hydrothermal Dolomites (Albian, Karrantza Valley, Northwest Spain) |
| Subtítulo | Implications on Conceptual Dolomite Models |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | ene./feb. 2012 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 19/04/2013 ; 18/04/2013 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 20 p. ; 9-29 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor: Field characteristics, petrographic and geochemical signatures, as well as some petrophysical aspects of fault-related dolomite bodies in the Ranero area (Karrantza Valley, NW Spain) are presented in this paper. These dolomite bodies are hosted by Albian slope to platform carbonates, which were deposited in the Basque-Cantabrian Basin. Replacive and void-filling dolomite phases – postdating palaeo- and hypogene karstification – are interpreted to have originated from hydrothermal fluid pulses, and are spatially related with faults and fractures. Hydrothermal calcite cements pre- and postdate dolomitization. Mineralogical and geochemical investigations (XRD, ICP-MS/OES, XRF, stable and Sr isotopes) helped in distinguishing various dolomite and calcite phases. Dolomite phases can be grouped into ferroan (early) and non-ferroan (late). Dolomites are generally stoichiometric and exhibit a broad range of depleted d18O values (–18.7 to –10.5‰ V-PDB), which advocate for multiphase dolomitization and/or recrystallization at relatively high temperatures (150-200°C). The observation that bed-parallel stylolites pre- and post-date dolomites suggests that dolomitization occurred during the Late Albian regional tectonic activity and related fluid expulsions. Based on carbonate chemistry, authigenic silicate chemistry and replacement relationships, two contrasting types of dolomitizing fluids are inferred. Both arguably may have initiated as sulphatedominated brines and/or basin compactional fluids, but they seemingly undergo sulphate reduction in contact with host rocks of contrasting compositions (Fe-rich silicate vs Fe-poor carbonate) thus evolving either to acidic and ferroan (limestone replacive) or to neutral, Fe-poor and sulfidic (Fe-dolomite replacive). Fluid drives are not well constrained by our data, but both fluid types are focused along major faults that cross cut the platform edge and are associated with diapir tectonics. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 1 |
| 773 0# - CORRECCIÓN | |
| Título | Oil and Gas Science and Technology |
| Partes relacionadas | 67 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Nader, F.H. |
| 9 (RLIN) | 33385 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | López-Horgue, M.A. |
| 9 (RLIN) | 53041 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Shah, M.M. |
| 9 (RLIN) | 53042 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Dewit, J. |
| 9 (RLIN) | 53043 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Garcia, D. |
| 9 (RLIN) | 45586 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Swennen, R. |
| 9 (RLIN) | 36689 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Iriarte, E. |
| 9 (RLIN) | 53044 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Muchez, P. |
| 9 (RLIN) | 53045 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Caline, B. |
| 9 (RLIN) | 53046 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 06/03/2026 | 200059750 | 200059750 | 06/03/2026 | Artículo de Revista |
