Fe and Mn in calcites cementing red beds: A record of oxidation–reduction conditions

Parcerisa, David; Gómez‐Gras, David; Travé, Anna; Martín‐Martín, Juan Diego; Maestro, Eudald

doi:10.1016/j.gexplo.2005.11.081

Cited by 15 publications

(13 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calcite cements filling fractures within the lower Miocene (early Burdigalian) conglomerates along the margins of the basins indicate precipitation from meteoric waters and a change from a vadose environment to a phreatic meteoric environment (Travé & Calvet 2001). Cementation of the basinal sediments that host the fractures occurred during early diagenesis at shallow burial depth by meteoric waters that changed in composition, particularly with respect to Eh and pH, as they flowed from the basin margin towards the centre of the basin (Parcerisa et al. 2005, 2006).…”

Section: Discussionmentioning

confidence: 99%

“… Local stratigraphy of the Miocene lower continental complex. (1) Location of the fractures studied by Parcerisa et al. (2005, 2006), (2) location of the fractures studied by Travé & Calvet (2001), (3) location of the fractures investigated in the study.…”

Section: Geological Settingmentioning

confidence: 99%

“…Thus, the goal of this paper is to generate further insights into the behaviour of fluids during the early evolution of an extensional basin, continuing work begun by Travé et al. (1998) on the horsts bordering the basin, by focusing on calcite cements in fractures in proximal conglomerates (Travé & Calvet 2001) and in sandstones within the basin (Parcerisa et al. 2005, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Migration of Mn‐rich fluids through normal faults and fine‐grained terrigenous sediments during early development of the Neogene Vallès‐Penedès half‐graben (NE Spain)

et al. 2009

Self Cite

View full text Add to dashboard Cite

The Miocene siliciclastic sediments infilling the Vallè s-Penedè s half-graben are affected by two sets of structures developed during the extensional tectonics that created the basin. The first set, represented by extension fractures infilled with mud and sands, is attributed to seismically induced liquefaction. The second set, represented by normal faults, corresponds to a high-permeability horsetail extensional fracture mesh developed near the surface in the hanging walls of normal faults. The incremental character of the vein-fills indicates episodic changes in the tectonic stress state and fault zone permeability. Two episodes of fluid migration are recorded. The first episode occurred prior to consolidation and lithification when shallow burial conditions allowed oxidizing meteoric waters to flow horizontally through the more porous and permeable sandy layers. Development of clastic dikes allowed local upward flow and dewatering of the sandy beds. Liquefaction and expulsion of fluids were probably driven by seismic shaking. During the first episode of fluid migration there was no cementation of the sandstone or within the fractures, probably because little fluid was mobilized by the predominantly compaction-driven flow regime. The second episode of fluid migration occurred synchronously with normal fault development, during which time the faults acted as fluid conduits. Fluids enriched in manganese, probably leached from local manganese oxyhydroxides soon after sedimentation, moved laterally and produced cementation in the sandstone layers, eventually arriving at the more porous and permeable fault pathways that connected compartments of different porosities and permeabilities. Carbonate probably precipitated in fractures saturated with meteoric water near the ground surface at a transitional redox potential. Once the faults became occluded by calcite cement, shortly after fault development, they became barriers to both vertical and horizontal fluid flow.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Migration of Mn‐rich fluids through normal faults and fine‐grained terrigenous sediments during early development of the Neogene Vallès‐Penedès half‐graben (NE Spain)

et al. 2009

Self Cite

View full text Add to dashboard Cite

show abstract

“…fluid interaction with different lithologies, temperature and pressure changes that control the solubility/precipitation and stability barriers of minerals, redox reactions, fluid mixing caused by changes in the hydrogeologic regime and/or deformation, etc. (Barnaby and Rimstidt, 1989;Hanor, 1994; Labaume and Moretti, 2001;Parcerisa et al, 2006;Baqués et al, 2012;Lacroix et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fluid composition changes in crystalline basement rocks from ductile to brittle regimes

Cantarero

Alías

Cruset

et al. 2018

Global and Planetary Change

View full text Add to dashboard Cite

The relationships between deformation and fluid flow have been investigated in the Paleozoic basement of an isolated horst of the Catalan Coastal Ranges. A structural, petrological and geochemical study has been performed in a complex fracture network that resulted from a long-lived tectonic history (from Carboniferous to Miocene). Nine fracture types, developed from a ductile regime in the greenschist facies to a shallow brittle regime, have been characterized in order to establish P, T and fluid compositions during the evolution of the horst. Syn-cleavage and late-cleavage quartz veins (qtz1-chl1±mu and late qtz2-chl2-dol1) formed during the Hercynian ductile deformation. These minerals precipitated from metamorphic fluids, possibly evolved from seawater, at temperatures between 240 and 340ºC. En-echelon albite vein arrays (ab-qtz3-chl3±ti-an) and NE-SW normal faults generating breccias mark the change from ductile to brittle, from compression to extension and from a closed to an open hydrologic regime. This paragenesis precipitated from the mixing of metamorphic and magmatic fluids at temperatures 2 between 180 and 290ºC during the early Permian extension. Dolomite veins (dol2-chl4-qtz4), precipitated at 210-280ºC from the mixing of previous fluids with hypersaline oxidizing external brines, possibly during the late stage of the early Permian extension. Reverse faults and calcite veins (Cc1-ba) formed either during the Paleogene compression or during the Langhian to early Serravallian minor compression. Calcite and barite precipitated from meteoric or marine waters in an open hydrological system at temperatures below 50ºC. The Miocene extension is represented by NE-SW normal faults with fault gouges and NNW-SSE normal faults cemented by calcite 2 that precipitated at temperatures below 50ºC from meteoric fluids in an open basin-scale hydrological system. The studied horst was part of a relay zone between two segments of the NNW-SE Llobregat fault during the early Permian, explaining the high fracture density and the fast upflowing of hydrothermal fluids at that time, thus controlling the development of albite veins exclusively in this area.

show abstract

“…Continental red beds are clastic sediments that contain finely disseminated hematite and goethite, formed by oxidation of ferrous minerals (biotite, hornblende, ilmenite) (Turner, 1980;Weibel and Friis, 2004;Sheldon, 2005;Parcerisa et al, 2006). The formation of ferric oxides is controlled by the oxidation conditions (Eh) and acidity (pH) and is basically controlled by electron transfer of Fe 2+ and oxygen (cf Appelo et al, 1999), following:…”

Section: Introductionmentioning

confidence: 99%

Diagenetic crystallization and oxidation of siderite in red bed (Buntsandstein) sediments from the Central Iberian Chain, Spain

Stel

2009

Sedimentary Geology

View full text Add to dashboard Cite

Fe and Mn in calcites cementing red beds: A record of oxidation–reduction conditions

Cited by 15 publications

References 3 publications

Migration of Mn‐rich fluids through normal faults and fine‐grained terrigenous sediments during early development of the Neogene Vallès‐Penedès half‐graben (NE Spain)

Migration of Mn‐rich fluids through normal faults and fine‐grained terrigenous sediments during early development of the Neogene Vallès‐Penedès half‐graben (NE Spain)

Fluid composition changes in crystalline basement rocks from ductile to brittle regimes

Diagenetic crystallization and oxidation of siderite in red bed (Buntsandstein) sediments from the Central Iberian Chain, Spain

Contact Info

Product

Resources

About