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Metadata Files

Data Publication

CRM-geothermal - geochemical results of drill core material, scaling and salt precipitates at Tuzla, Seferihisar and Dikili geothermal sites, Eastern Turkey

Strauch, Bettina | Wilke, Franziska D.H. | Stammeier, Jessica | Ayzit, Tolga | Tonkul, Serhat | Demir, Mustafa Muammer | Alper Baba

GFZ Data Services

(2024)

Descriptions

The EU funded project CRM-geothermal aims to establish an overview of the potential for critical raw materials (CRM) in geothermal fluids across the EU and third countries (Ref). Within this framework, the geothermal sites of Tuzla, Seferihisar and Dikili in eastern Turkey have been visited in March 2023. To estimate the potential of CRM at these sites, a comprehensive sampling program was performed. Rock samples (drill gravel) of the production borehole and scaling from gas-water separators were obtained. Furthermore, sampling of geothermal fluids (gas and brine) and precipitates (salt) along the production line was performed. Here, the results of the geochemical analyses of solid sample materials (drill gravel, scales and salt) are presented. All analyses were performed in the ElMiE-Lab (Elements and Minerals of the Earth Laboratory) at German Research Centre for Geosciences Potsdam, Germany (https://labinfrastructure.geo-x.net/laboratories/8). For their major and minor element compositions, bulk samples of drill gravel and scales were analyzed with XRF and ICP-MS, respectively. Salt precipitates were analyzed for dry loss and mineral composition using XRD.
Sampling of drill gravel: Drill core gravel from Tuzla geothermal site was obtained from existing samples taken during drilling in 2010. For the analyses, three samples of the geothermal reservoir horizon at different depth and from two different drill holes were chosen. Sampling of scales: Scales were sampled during geothermal power plant maintenance in 2023 in Tuzla and in 2022 in Seferihisar. It was analyzed from all water-gas separators from the three drill holes in Tuzla. For Seferihisar, fresh scales were obtained from inside a tube, a pump and a fitter. Sampling of salt precipitates: During the visits, fresh salt precipitates were taken from outside the pipeline that transports geothermal brine to the power plant. The sampling points were located near the production well. Here, few connectors were slightly leaking which is negligible for the geothermal power production. Over time, the small amounts of brine release causes salt precipitation, due to brine cooling and evaporation. The residual salts occurs in form of fine crystalline precipitations around the pipe connectors or, stalactite-like salt tubings. Sampling of fresh, slightly moist material was performed by either scratching material off the precipitate deposit or breaking off juvenile stalactite outgrowth. The sample were stored and transported in air-tight zipper plastic bags to avoid sample alteration by atmospheric air.

Keywords


Originally assigned keywords
critical raw materials
geothermal power plant eastern turkey
drill gravel
scales
salt precipitates
geochemistry
XRF
ICP-MS
XRD
EARTH SCIENCE > HUMAN DIMENSIONS > ECONOMIC RESOURCES > ENERGY PRODUCTION/USE > GEOTHERMAL ENERGY PRODUCTION/USE
energy > energy type > non-conventional energy > geothermal energy
Models/Analyses > CRM

Corresponding MSL vocabulary keywords
x-ray fluorescence spectrometer
inductively coupled plasma-mass spectrometer
X-ray diffraction

MSL enriched keywords
equipment
x-ray spectrometer
x-ray fluorescence spectrometer
mass spectrometer
inductively coupled plasma-mass spectrometer
Technique
imaging (3D)
computed tomography (CT)
X-ray diffraction
Measured property
remanent magnetisation
chemical remanent magnetisation (CRM)
subsurface energy production
geothermal energy extraction
Equipment
borehole drilling
drill core
unconsolidated sediment
clastic sediment
gravel
liquid phase
salt brine
geothermal reservoir

MSL enriched sub domains i

geochemistry
microscopy and tomography
paleomagnetism
geo-energy test beds

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=b35dd355-bab2-11ee-967a-4ffbfe06208e

Source publisher

GFZ Data Services


DOI

10.5880/gfz.3.1.2024.003


Creators

Strauch, Bettina

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3648-1032

Wilke, Franziska D.H.

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3463-6176

Stammeier, Jessica

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3603-3272

Ayzit, Tolga

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5710-0713

Tonkul, Serhat

Izmir Institute of Technology, Department of Environmental Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0002-8572-1565

Demir, Mustafa Muammer

Izmir Institute of Technology, Department of Material Science and Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0003-1309-3990

Alper Baba

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5307-3156


Contributors

Strauch, Bettina

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3648-1032

Strauch, Bettina

DataCollector

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3648-1032

Strauch, Bettina

DataManager

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3648-1032

Wilke, Franziska D.H.

DataCollector

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3463-6176

Wilke, Franziska D.H.

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3463-6176

Stammeier, Jessica

DataManager

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-3603-3272

Ayzit, Tolga

HostingInstitution

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5710-0713

Ayzit, Tolga

ProjectMember

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5710-0713

Tonkul, Serhat

HostingInstitution

Izmir Institute of Technology, Department of Environmental Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0002-8572-1565

Tonkul, Serhat

ProjectMember

Izmir Institute of Technology, Department of Environmental Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0002-8572-1565

Demir, Mustafa Muammer

HostingInstitution

Izmir Institute of Technology, Department of Material Science and Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0003-1309-3990

Demir, Mustafa Muammer

ProjectMember

Izmir Institute of Technology, Department of Material Science and Engineering, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0003-1309-3990

Baba, Alper

HostingInstitution

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5307-3156

Baba, Alper

ProjectMember

Izmir Institute of Technology, Department of International Water Resources, İzmir, Türkiye

ORCID:

https://orcid.org/0000-0001-5307-3156

Elements And Minerals Of The Earth Laboratory (ElMiE-Lab)

HostingInstitution

German Research Centre for Geosciences Potsdam, Germany

Strauch, Bettina

ContactPerson


References

10.5880/gfz.3.1.2024.002

10.1107/s1600576715014685


Citation

Strauch, B., Wilke, F. D. H., Stammeier, J., Ayzit, T., Tonkul, S., Demir, M. M., & Baba, A. (2024). CRM-geothermal - geochemical results of drill core material, scaling and salt precipitates at Tuzla, Seferihisar and Dikili geothermal sites, Eastern Turkey [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.3.1.2024.003


Dates

Issued:

2024


Funding References

Funder name: Horizon 2020 Framework Programme

Funder identifier: https://doi.org/10.13039/100010661

Funder identifier type: Crossref Funder ID

Award number: 101058163

Award title: CRM-geothermal


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

Seferihisar Power Plant production well 1

Seferihisar Power Plant production well 2

Tuzla Power Plant production well T9

Tuzla Power Plant production well T16

Tuzla Power Plant production well T18

Dikili Region, geothermal site production well 1

Dikili Region, geothermal site production well 2