Hydrothermal dolomitization in platform and basin carbonate successions during thrusting: A hydrocarbon reservoir analogue (Mesozoic of Venetian Southern Alps, Italy)

Ronchi, Paola; Masetti, Daniele; Tassan, S.; Camocino, Davide

doi:10.1016/j.marpetgeo.2011.09.004

Cited by 55 publications

(24 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Boni et al ., ; Lapponi et al ., , ; López‐Horgue et al ., ; Nader et al ., ; Swennen et al ., ; Haeri‐Ardakani et al ., ,b; Hendry et al ., ). In the Alpine chain, several examples of hydrothermal dolomitization come from the Southern Alps (Spencer‐Cervato & Mullis, ; Carmichael & Ferry, ; Carmichael et al ., ; Ferry et al ., ; Ronchi et al ., , ). In many of these case studies, the most challenging point is the timing and the burial depth of dolomitization, which can only be inferred on the basis of indirect evidence regarding the regional context and the burial history.…”

Section: Introductionmentioning

confidence: 99%

Very hot, very shallow hydrothermal dolomitization: An example from the Maritime Alps (north‐west Italy–south‐east France)

et al. 2016

View full text Add to dashboard Cite

In the Maritime Alps (NW Italy-SE France), the Middle Triassic-lowermost Cretaceous platform carbonates of the Provençal Domain locally show an intense dolomitization. Dolomitized bodies, irregularly shaped and variable in size from some metres to hundreds of metres, are associated with tabular bodies of dolomite-cemented breccias, cutting the bedding at a high angle, and networks of dolomite veins. Field and petrographic observations indicate that dolomitization was a polyphase process, in which episodes of hydrofracturing and host-rock dissolution, related to episodic expulsion of overpressured fluids through faults and fracture systems, were associated with phases of host-rock dolomitization and void cementation. Fluid inclusion analysis indicates that dolomitizing fluids were relatively hot (170-260 °C). The case study represents an outstanding example of a fossil hydrothermal system, which significantly contributes to the knowledge of such dolomitization systems in continental margin settings. The unusually favourable stratigraphic framework allows precise constraint of the timing of dolomitization (earliest Cretaceous), and, consequently, direct evaluation of the burial setting of dolomitization, which, for the upper part of the dolomitized succession, was very shallow or even close to the surface. The described large-scale hydrothermal system was probably related to deep-rooted

show abstract

Section: Introductionmentioning

confidence: 99%

Very hot, very shallow hydrothermal dolomitization: An example from the Maritime Alps (north‐west Italy–south‐east France)

et al. 2016

View full text Add to dashboard Cite

show abstract

“…This process usually occurs at intermediate burial depths (e.g. Davies and Smith Jr 2006;Smith Jr. and Davies 2006;Wilson et al 2007;Conlife et al 2010;Lavoie and Chi 2010;Ronchi et al 2012;Haeri-Ardakani et al 2013). Fault-related hydrothermal dolomitization in compressional setting was described from several locations (e.g.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal dolomitization of basinal deposits controlled by a synsedimentary fault system in Triassic extensional setting, Hungary

Hips

Haas

Győri

2015

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

“…By contrast, there are only few outcrops of HTD that can serve to better understand the controlling factors on hydrothermal dolomitization and the poroperm variations (e.g. Al-Aasm, 2003;Gasparrini et al 2003;López-Horgue et al 2005Nader et al 2007;Schröder et al 2008;Sharp et al 2010;Lapponi et al 2011;Ronchi et al 2012). Most of the known HTD occurrences have an important structural control; extensional and/or strike-slip settings are particularly common geodynamical settings (e.g.…”

mentioning

confidence: 99%

Interplay between fracturing and hydrothermal fluid flow in the Asón Valley hydrothermal dolomites (Basque–Cantabrian Basin, Spain)

Iriarte

López‐Horgue

Schroeder

et al. 2012

View full text Add to dashboard Cite

In Asón Valley hydrothermal dolomite area (Basque–Cantabrian Basin, northern Spain), an overlapping stepover area between two major basement faults, the Cabuerniga and Ruahermosa transtensional faults, was the location for different scales and types of extensive fractures. This fracture mesh affected the Albian Ranero limestone and was formed in a dilational jog, a regional fluid throughflow area. It acted as pathway for overpressured fluids that controlled the dolomite mineralization in the Ranero massif area. The study of synchronous structural features, fluid flow channelling and dolomitization processes indicated their tectonic control. The fluid circulated and concentrated preferentially in more fractured areas with increased permeability, such as extensional chimneys, creating dolomite bodies. Repeated extensive tectonic activity enhanced fracture porosity, promoting overpressured fluid migration and cyclical dolomitization events. The studied fracture pattern suggests the presence of sinistral transtension during the formation of extensional joint-sets that channellized the mineralizing fluid-flow. A gradation in structural features and dolomite facies and textures is visible from the main Pozalagua fault dolomite body to peripheral dolomite bodies as the Breccia body and Ranero megajoints. These differences could reflect a proximal–distal trend from the main fluid-flow area along the Pozalagua fault to the Ranero megajoints.

show abstract

Hydrothermal dolomitization in platform and basin carbonate successions during thrusting: A hydrocarbon reservoir analogue (Mesozoic of Venetian Southern Alps, Italy)

Cited by 55 publications

References 28 publications

Very hot, very shallow hydrothermal dolomitization: An example from the Maritime Alps (north‐west Italy–south‐east France)

Very hot, very shallow hydrothermal dolomitization: An example from the Maritime Alps (north‐west Italy–south‐east France)

Hydrothermal dolomitization of basinal deposits controlled by a synsedimentary fault system in Triassic extensional setting, Hungary

Interplay between fracturing and hydrothermal fluid flow in the Asón Valley hydrothermal dolomites (Basque–Cantabrian Basin, Spain)

Contact Info

Product

Resources

About