Nisson D , Kieft T , Drake H , Warr O , Sherwood Lollar B , Ogasawara H , Perl S , Friefeld B , Castillo J , Whitehouse M , Kooijman E , Onstott T .
Hydrogeochemical and isotopic signatures elucidate deep subsurface hypersaline brine formation through radiolysis driven water-rock interaction.
Geochimica et Cosmochimica Acta. 2023 ; 340 65-84. [doi][doi]

Nisson DM , Walters CC , Chacón-Patiño ML , Weisbrod CR , Kieft TL , Sherwood Lollar B , Warr O , Castillo J , Perl SM , Cason ED , Freifeld BM , Onstott TC .
Radiolytically reworked Archean organic matter in a habitable deep ancient high-temperature brine.
Nature communications. 2023 ; 14 (1): 6163. [doi][doi]

Warr O , Ballentine C , Onstott T , Nisson D , Kieft T , Hillegonds D , Sherwood Lollar B .
86Kr excess and other noble gases identify a billion-year-old radiogenically-enriched groundwater system.
Nature Communications. 2022 ; 13 (1): [doi][doi]

Miyamoto T , Hirono T , Yokoyama Y , Kaneki S , Yamamoto Y , Ishikawa T , Tsuchiyama A , Katayama I , Yabe Y , Durrheim RJ , Ogasawara H .
Characteristics of Fault Rocks Within the Aftershock Cloud of the 2014 Orkney Earthquake (M5.5) Beneath the Moab Khotsong Gold Mine, South Africa.
Geophysical Research Letters. 2022 ; 49 (14): e2022GL098745. [doi][doi]

Nkosi NZ , Manzi MS , Westgate M , Roberts D , Durrheim RJ , Ogasawara H , Ziegler M , Rickenbacher M , Liebenberg B , Onstott TC .
Physical property studies to elucidate the source of seismic reflectivity within the ICDP DSeis seismogenic zone: Klerksdorp goldfield, South Africa.
International Journal of Rock Mechanics and Mining Sciences. 2022 ; 155 105082. [doi][doi]

Yabe Y , Abe S , Hofmann G , Roberts D , Yilmaz H , Ogasawara H , Ito T , Funato A , Nakatani M , Naoi M .
Stress State in the Source Region of Mw2.2 Earthquake in a Deep Gold Mine in South Africa Determined from Borehole Cores.
Pure and Applied Geophysics. 2022 ; 179 (5): 1679-1700. [doi][doi]

Mngadi S , Tsutsumi A , Onoe Y , Manzi M , Durrheim R , Yabe Y , Ogasawara H , Kaneki S , Wechsler N , Ward A , Naoi M , Moriya H , Nakatani M .
The effect of a gouge layer on rupture propagation along brittle shear fractures in deep and high-stress mines.
International Journal of Rock Mechanics and Mining Sciences. 2021 ; 137 104454. [doi][doi]

Ogasawara H , Liebenberg B , Rickenbacher M , Ziegler M , Esterhuizen H , Onstott T , Durrheim M , Mngadi S , Yabe Y , Kaneki S , Cason E , Vermeuren J , Heerden E , Wiersberg T , Zimmer M , Kujawa C , Conze R , Aswegen G , Wechsler N , Ward A , Enslin S , Tau S , Bucibo M .
2019 status report: Drilling into seismogenic zones of M2.0–M5.5 earthquakes in South African gold mines (DSeis project).
In: Joughin W, editors. Deep Mining 2019: Proceedings of the Ninth International Conference on Deep and High Stress Mining. The Southern African Institute of Mining and Metallurgy; 2019 . p. 375-384. [doi][doi]

Voosen P .
Deep in a South African gold mine, scientists drill for the heart of an earthquake.
Science. 2017 ; [doi][doi]

Ogasawara H , Durrheim R , Yabe Y , Ito T , Aswegen G , Grobbelaar M , Funato A , Ishida A , Mngadi S , Manzi M , Ziegler M , Ward A , Hofmann G , Moyer P , Boettcher M , Dight P , Ellsworth W , Liebenberg B , Wechsler N , Onstott T , Berset N .
Drilling into seismogenic zones of M2.0 – M5.5 earthquakes from deep South African gold mines (DSeis): establishment of research sites.
In: Ogasawara H , Durrheim R , Yabe Y , Ito T , Aswegen G , Grobbelaar M , Funato A , Ishida A , Mngadi S , Manzi M , Ziegler M , Ward A , Hofmann G , Moyer P , Boettcher M , Dight P , Ellsworth W , Liebenberg B , Wechsler N , Onstott T , Berset N . Drilling into seismogenic zones of M2.0 – M5.5 earthquakes from deep South African gold mines (DSeis): establishment of research sites. International Society for Rock Mechanics; 2017 . p. 237 – 248.

Yabe Y , Nakatani M , Naoi M , Philipp J , Watanabe T , Katsura T , Kawakata H , Georg D , Ogasawara H .
Nucleation process of an M2 earthquake in a deep gold mine in South Africa inferred from on-fault foreshock activity.
Journal of Geophysical Research: Solid Earth. 2015 ; 120 (8): 5574-5594. [doi][doi]