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Databank

Databank

Posiva publishes Working Reports and Posiva Reports. From the year 2006 nearly all the reports have been published on our webpage and they can be found in the databank. In the databank you can also find our Annual Reviews and some other publications as well. You can also find print-quality pictures and useful links in the databank.

Recent publications


Workreport 2018-11

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Name:

Mineralogical Study on One Quaternary Soil Sample of the Olkiluoto Research Pit OL-KK26

Writer:

Lukkari, S., Marmo, J.

Language:

English

Page count:

32

Summary:

One Quaternary soil sample from the Olkiluoto research pit OL-KK26 was studied for its mineralogy, focused on its carbonate and sulphide concentrations. The study is based on size and density classified subsamples.

Mineral distributions were determined by a Field Emission Scanning Electron Microscope (FE-SEM) equipped with an energy dispersive X-ray spectrometer (EDS), using AZtec and INCA Feature phase detection and classification software. Lithologies within the cobble fraction are also measured.

Carbonates and sulfide concentrations of the sample are low. Carbonates and phosphates occur in the sedimentary rock fragments forming a matrix enveloping the other detrital mineral grains, like quartz and sulfides. Sulphide is predominately pyrite. Pyrite occurs as liberated grains and as inclusions in granitic and sedimentary rock particles.

Keywords:

Soil sample, till, heavy mineral separation, FE-SEM-EDS, sulphide, carbonate, phosporite, Olkiluoto, Finland

File(s):

WR 2018-11_web (pdf) (10.4 MB)

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