Datings by Fission Tracks

We apply the Fission Track Analysis technique in apatites and zircons (AFTA / ZFTA) to obtain datings. The results derived from this technique allows the reduction of oil and gas exploratory risk, specifying:

maximum temperatures reached by the organic matter present in the generating rocks,
generation age,
chronology of structural traps development in conventional targets,
sites of burial, generation and accumulation of oil and gas in non-conventional objectives.

In addition, the interpretative analysis of these results helps to understand the evolutionary history of mountain ranges and exhumation / burial cycles, among other geological processes.

AFTA: Production process

Production process used in obtaining datings by AFTA / ZFTA.

Beyond datings

In most analytical centers that offer commercial services, the final product refers to the numerical data of the age and the thermal evolution of the samples (numerical modeling).

In LA.TE. ANDES, we go further and comprehensively develop the interpretative analysis of the results, framing it in the geological knowledge and valutation of factors that intervene in quantifying the resources potential of the region.

The key element that allows this qualitative difference is the close collaboration and interaction with Geomap S.A., both in the sampling phase and in the analytical and interpretative phase. His experience and deep knowledge of the Sub-Andean System of North of Argentina and Bolivia through more than 25 years of activity are thus incorporated into our final product.

Related products and services

With our capabilities and the application of this work methodology we can provide products and services like:
Heavy minerals concentration
Preparation of mirror polished samples
Obtaining the Central Age and Closing Temperatures
Provenance determination
Neutron irradiation of minerals.
Heavy minerals concentration

Through physical methods of crushing and grinding of the rock sample provided, its subsequent sieving and the use of Franz magnetic separators in addition to dense liquids, to achieve the desired result.

Preparation of mirror polished samples

For different microscopic studies, among which are the petrography of opaque minerals, fluid inclusions and fission tracks in apatites and zircons.

Obtaining the Central Age and Closing Temperatures

Fission tracks dating in apatites and zircons, using Trakkey software.

Provenance determination

With apatites or zircons, once a minimum measurement was obtained in 100 crystals, and the measurement of confined track lengths.

Neutron irradiation of minerals.

In minerals such as apatite and zircon and/or synthetic materials, glass, etc.

Numeric modelling of the fission tracks evolution
Modeling of organic matter thermal evolution
Content of CI – F in apatites
Composition of fluid inclusions
Numeric modelling of the fission tracks evolution

The data are modeled with HeFty and Pecube software, obtaining information about temperature-time path, in addition to temperature ranges, burial and exhumation ages or tectonic events. As a result, interpretation and final report are obtained.

Modeling of organic matter thermal evolution

Through the Petromod sofware (Petrotrack module) the degree of maturation reached by organic matter is obtained, which implies the range within the generation window  in which a formation is.

Content of CI – F in apatites

Using Raman Spectrometry.

Composition of fluid inclusions

Determined with the help of Raman spectrometry.

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