Blog – Entracers GmbH

First dating of an early Chibanian glacial overdeepening in the Alpine Foreland

Post author By YT
Post date 2024-10-25

Within the frame of a collaborative work involving the Eawag, the University of Basel, Nagra, and the University of Bern it was possible for the first time to date sediments deposited during the early Chibanian (Middle Pleistocene) using the ⁴He/U-Th medod. The respective article accepted by Geology and is freely available at the following address:

Tomonaga, Y., Buechi, M.W., Deplazes., G., & Kipfer, R. (in press). First dating of an early Chibanian (Middle Pleistocene) glacial overdeepening in the Alpine Foreland using the 4He/U-Th method. Geology, doi:10.1130/G52544.1.

At Entracers we now have all the know-how and technical means to apply the newly developed method applied to determine the radiogenic ⁴He concentrations in the pore water of coarse/semi-consolidated sediments as those found in the Hochfelden-Strassberg drilling!

Sponsoring

IAH Worldwide Groundwater Congress 2023 field excursion

Post author By YT
Post date 2023-09-08

We are supporting an amazing field excursion within the context of the IAH Worldwide Congress 2023 in Cape Town, South Africa. If you are joining IAH2023: don’t miss this opportunity!

Facilities Fieldwork

Visiting Kochi University (Japan)

Post author By YT
Post date 2023-02-14

Our portable mass spectrometer arrived safely at the Center for Advanced Marine Core Research of Kochi University hosting one of the IODP core repositories . Sunday Feb. 12th was dedicated to some sightseeing.

Facilities Fieldwork

Our miniRUEDI is ready to take off!

Post author By YT
Post date 2023-02-09

For our first international project the miniRUEDI underwent the custom procedures at Zurich Airport and it is now ready to fly to Japan!

Publications

Revisiting Mt Fuji’s groundwater origins

Post author By YT
Post date 2023-01-19

Please enjoy the first research article of Nature Water which underlines the potential of on-site gas analyses in combination with other environmental tracers:

Schilling, O.S., Nagaosa, K., Schilling, T.U., Brennwald, M.S., Sohrin, R., Tomonaga, Y., Brunner, P., Kipfer, R., & Kato, K. (2023). Revisiting Mt Fuji’s groundwater origins with helium, vanadium and environmental DNA tracers. Nat. Water, 1, 60–73, doi:10.1038/s44221-022-00001-4.

Fieldwork

First sampling at the HotBENT experiment for 2022

Post author By YT
Post date 2022-08-11

Today we started the first gas sampling campaign planned in 2022 at the HotBENT experiment (Grimsel Test Site). For this purpose, Entracers prepared additional samplers that will be available for future projects of our customers.

Methods Publications

Gas-bentonite interactions in Engineered Barrier Systems

Post author By YT
Post date 2022-02-11

A collaborative research project involving the Swiss Federal Institute of Aquatic Science and Technology, the Institute of Geological Sciences at the University of Bern, and Posiva Oy targeted gas-bentonite interactions in relation to the gas dynamics in Engineered Barrier Systems. The outcome of the study has been published in the following open access article:

Tomonaga, Y., Wersin, P., Rufer, D., Pastina, B., Koho, P., Ville, H., & Kipfer, R. (2022). Gas-bentonite interactions: Towards a better understanding of gas dynamics in Engineered Barrier Systems. Appl. Geochem., 138, 105205, doi:10.1016/j.apgeochem.2022.105205.

Interested in conducting further investigations based on the same methods? Entracers GmbH can now provide the required know-how as well as the related analytical facilities!

Facilities

The pressure wave of the Tonga volcanic eruption reaches our miniRUEDI

Post author By YT
Post date 2022-01-24

On Jan. 15^th 2022, while running test measurements, our miniRUEDI was able to catch the pressure wave produced by the Hunga Tonga volcanic eruption.

Facilities Fieldwork

Entracers miniRUEDI operational at the Grimsel Test Site

Post author By YT
Post date 2022-01-17

The first miniRUEDI of Entracers is ready to perform gas measurements for the GAST experiment at the Grimsel Test Site. We are looking forward to the developments of this project managed by Nagra!

Facilities Methods

Entracers acquired the first patented GE-MIMS module

Post author By YT
Post date 2021-12-29

Let’s call it “Christmas present”: Entracers is now the proud owner of the first patented (or, more precisely, “pat. pending”) GE-MIMS module which allows quantitative gas analysis in water using the miniRUEDI. Such Eawag-patented GE-MIMS modules can be purchased at Gasometrix GmbH.