“STANDARD LIBRARY”: A relational database for the management of electron microprobe standards

Diamond, Larryn W.; Schmatz, Dirk R.; Würsten, Felix

doi:10.1016/0098-3004(94)90081-7

Cited by 4 publications

(2 citation statements)

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“…Microprobe measurements were carried out at the University of Bern on a Cameca SX50 machine following the method of Diamond et al (1994). Fluid-inclusion thermometry was performed at the University of Leoben on a LINKAM MDS-600 heating±freezing stage using synthetic standards.…”

Section: Methodsmentioning

confidence: 99%

Neogene exhumation of the Variscan Szeghalom Dome, Pannonian Basin, E. Hungary

2000

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The Pannonian Basin consists of several deep sub-basins separated by uplifted basement highs. One of the largest and deepest sub-basins is the Be Âke Âs Basin in SE Hungary which is surrounded to the north by several crystalline domes. Of these, the Szeghalom Dome is the best known petrologically, and has been used for studying the Neogene exhumation history of the area.On the basis of metabasite bulk chemistry, the Szeghalom Dome can be subdivided into four distinct zones, the borders of which correspond closely to geophysical anomalies. The four zones exhibit different pre-Variscan and Variscan pressure±temperature± time (P±T±t) histories. In zone I, high-pressure relics (600 C, >12 kbar) occur. Peak-metamorphic conditions of the main Barrovian overprint were c. 700 C and 6 kbar, and amphibole K/Ar ages scatter around 260 Ma. Zone II shows similar characteristics, with the formation of anatectic granite at peak conditions. K/Ar ages are as low as 220 Ma. Zones III and IV show similar evolution to each other with high-grade Barrovian relics (700 C), peak metamorphism at 570 C and amphibole ages of 300 Ma.Throughout the dome, ®ngerprints of a three-fold Neogene tectonic evolution can be observed. An early detachment fault formed quartz±feldspar±mylonite in zone IV, while chloritic breccia developed at the border of zones II and III. Following the thermal subsidence phase of the basin evolution, the area was dominated geodynamically by the reactivation of older strike-slip fault systems. These movements were responsible for the horizontal transport of the crystalline blocks at both the southern and northern¯anks of the dome.

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Section: Methodsmentioning

confidence: 99%

Neogene exhumation of the Variscan Szeghalom Dome, Pannonian Basin, E. Hungary

2000

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“…Synthetic and natural standards were used, and the conditions included a 15 kV electric potential and a 20 nA beam current. Natural minerals [36] were used as standards. To model the stability conditions (pressure, temperature, and fluid composition) of the vein-filling laumontite, the THERIAK-DOMINO thermodynamic system was applied [37,38], which calculates equilibrium mineral paragenesis for any P 0 -T 0 point.…”

Section: Methodsmentioning

confidence: 99%

Localisation of Ancient Migration Pathways inside a Fractured Metamorphic Hydrocarbon Reservoir in South-East Hungary

et al. 2020

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Numerous fractured hydrocarbon reservoirs exist in the metamorphic basement of the Pannonian Basin in Hungary. Many decades of experience in production have proven that these reservoirs are highly compartmentalised, resulting in a complex mosaic of permeable and impermeable domains situated next to each other. Consequently, in most fields, only a small amount of the total hydrocarbon reserve can be extracted. This paper aims to locate the potential migration pathways inside the most productive basement reservoir of the Pannonian Basin, using a multiscale approach. To achieve this, evaluation well-log data, DFN modelling and a composition analysis of fluid trapped in a vein-filling zeolite phase are combined. Data on a single well are presented as an example. The results of the three approaches indicate the presence of two highly fractured intervals separated by a barely fractured amphibolite. The two zones are probably part of the communicating fracture system inside the single metamorphic mass. The gas analysis further specifies the migrated fluids and indicates hydrocarbons of a composition similar to that of the recently produced oil. Consequently, we conclude that the two zones do not only form an ancient migration pathway but are also members of a more recent hydrocarbon system.

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