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Metadata Files

Data Publication

Survey of critical raw materials in Tanzania East African Rift geothermal araes

Wilke, Franziska D. H. | Mahecho, Albano | Regenspurg, Simona | Zimmer, Martin | Jentsch, Anna | Kreitsmann, Timmu | Bau, Michael | Schröder, Birgit | Vieth-Hillebrand, Andrea | Niedermann, Samuel | Stammeier, Jessica

GFZ Data Services

(2024)

Descriptions

In autumn 2022, an expedition to Tanzania was undertaken within the framework of the research project “CRM-geothermal” and Scintific Priority Program (SPP) 2238 “Dynamics of Ore Metal Enrichment”. Within „CRM-geothermal“ we are looking for an environmentally friendly co-production of critical raw materials together with the provision of geothermal energy. In the EARS, high levels of rare earth elements (REE), Sr, Ba and Mg are expected in waters and solids in areas with alkaline volcanic rocks, while other critical elements, including helium, have been sought in other localities. In particular, the eastern branch is the most juvenile sector and has increased geothermal potential related to hot fluids migrating along permeable faults. Tanzania was crossed from north to south, along the eastern arm of the EARS, to collect gas, water, rock and sediment samples associated with natural hot springs, lakes and vents. On site, physical and chemical parameters were measured in-situ and documented together with the geology, infrastructure and the domestic use of the hot site. In the south, existing drill sites and geothermal development areas were visited and gas and water samples were taken from boreholes and rocks sampled from drill cores. The survey covered 13 sites, from Lake Natron in the north to Lake Malawi in the south (see map).

Keywords


MSL enriched keywords
subsurface energy production
geothermal energy extraction
Measured property
remanent magnetisation
chemical remanent magnetisation (CRM)
measured property
helium
strontium

MSL enriched sub domains i

paleomagnetism
geochemistry

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=b8a4c8b0-d0c4-11ee-967a-4ffbfe06208e

Source publisher

GFZ Data Services


DOI

10.5880/gfz.3.1.2024.006


Creators

Wilke, Franziska D. H.

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

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

Mahecho, Albano

Tanzania Geothermal Development Company (TDGC), Dar es Salaam, Tanzania

Regenspurg, Simona

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-4327-1439

Zimmer, Martin

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0002-8848-2336

Jentsch, Anna

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0001-7552-507X

Kreitsmann, Timmu

School of Science, Constructor University, Bremen, Germany | Department of Geology, University of Tartu, Estonia

ORCID:

https://orcid.org/0000-0001-8516-3535

Bau, Michael

School of Science, Constructor University, Bremen, Germany

ORCID:

https://orcid.org/0000-0002-7746-3762

Schröder, Birgit

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-4807-6357

Vieth-Hillebrand, Andrea

GFZ German Research Centre for Geosciences, Potsdam, Germany

Niedermann, Samuel

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1626-5284

Stammeier, Jessica

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

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


Contributors

Elements And Minerals Of The Earth Laboratory (ElMiE-Lab, GFZ German Research Centre For Geosciences, Germany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Microprobe Lab (GFZ German Research Centre For Geosciences, Germany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Noble Gas Lab (GFZ German Research Centre For Geosciences, Gernany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Laboratory For Stable Isotopes (Sediments And Water) (GFZ German Research Centre For Geosciences, Germany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Laboratory For Compound-Specific Isotope Analysis (GFZ German Research Centre For Geosciences, Gernany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Gas Geochemistry Lab (GFZ German Research Centre For Geosciences, Germany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

Wilke, Franziska D. H.

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany


References

10.1180/dhz

http://georem.mpch-mainz.gwdg.de

10.1046/j.1365-2494.1998.53202081.x-i1

10.1144/jgs2014-072

10.1016/s0016-7037(97)00102-6

10.1016/j.lithos.2020.105381

10.1007/bf00470631


Citation

Wilke, F. D. H., Mahecho, A., Regenspurg, S., Zimmer, M., Jentsch, A., Kreitsmann, T., Bau, M., Schröder, B., Vieth-Hillebrand, A., Niedermann, S., & Stammeier, J. (2024). Survey of critical raw materials in Tanzania East African Rift geothermal araes [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.3.1.2024.006


Dates

Issued:

2024


Funding References

Funder name: Deutsche Forschungsgemeinschaft

Funder identifier: https://doi.org/10.13039/501100001659

Funder identifier type: Crossref Funder ID


Rights

Creative Commons Attribution 4.0 International