Geochemistry of the Palaeoproterozoic volcanic and associated potassic granitic rocks of the Ngualla area of the Ubendian Belt, SW Tanzania

Autor: Peter Torssander, Shukrani Manya, Tulibako Tulibonywa, Makenya A.H. Maboko

Publikováno v: Journal of African Earth Sciences. 129:291-306

The Ngualla area of the Lupa terrane in the Ubendian Belt of SW Tanzania is underlain by well-preserved greenschist facies calc-alkaline volcanic rocks which have been intruded by low-Sr, peraluminous K-rich granites. The Ngualla volcanic rocks are s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6075eb7f0aa1d5316231c29206051113
https://doi.org/10.1016/j.jafrearsci.2017.01.022

Isotope systematics of Icelandic thermal fluids

Autor: Shuhei Ono, Jan Heinemeier, Stefán Arnórsson, David R. Hilton, Árný E. Sveinbjörnsdóttir, Jens Fiebig, Jaime D. Barnes, Peter Torssander, Sæmundur A. Halldórsson, Andri Stefánsson

Publikováno v: Prof. Ono via Michael Noga
Stefansson, A, Hilton, D R, Sveinbjornsdottir, A E, Torssander, P, Heinemeier, J, Barnes, J D, Ono, S, Halldorsson, S A, Fiebig, J & Arnorsson, S 2017, ' Isotope systematics of Icelandic thermal fluids ', Journal of Volcanology and Geothermal Research, vol. 337, pp. 146-164 . https://doi.org/10.1016/j.jvolgeores.2017.02.006

Thermal fluids in Iceland range in temperature from < 10 °C to > 440 °C and are dominated by water (> 97 mol%) with a chloride concentration from < 10 ppm to > 20,000 ppm. The isotope systematics of the fluids reveal many important features of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c098a78db3f18e64adcea71f43ea1b8
https://hdl.handle.net/1721.1/123818

Direct evidence of the feedback between climate and weathering

Autor: Eydis Salome Eiriksdottir, Peter Torssander, M. I. Kardjilov, G. Gisladottir, Sigurdur R. Gislason, Niels Oskarsson, Árni Snorrason, Eric H. Oelkers, J. Hardardottir, Sverrir Óskar Elefsen, Bergur Sigfússon

Publikováno v: Earth and Planetary Science Letters. 277:213-222

Long-term climate moderation is commonly attributed to chemical weathering; the higher the temperature and precipitation the faster the weathering rate. Weathering releases divalent cations to the ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::705fb200a166ba15070165665b898c84
https://doi.org/10.1016/j.epsl.2008.10.018

Geochronological, stable isotopes and fluid inclusion constraints for a premetamorphic development of the intrusive-hosted Björkdal Au deposit, northern Sweden

Autor: Kjell Billström, Clemente Recio, Adrian J. Boyce, Peter Torssander, Erik Jonsson, Curt Broman

Publikováno v: International Journal of Earth Sciences. 98:1027-1052

The Bjorkdal gold deposit, bound to a quartz vein system which is mainly hosted by a quartz-monzodioritic intrusion, is situated at the easternmost part of the 1.9 Ga Skellefte base metal district in the Fennoscandian shield. Three fluid stages may b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99d0538c55de7307ef25cb0745ef297b
https://doi.org/10.1007/s00531-008-0301-8

Late Glacial and Holocene Palaeoenvironmental Changes in the Rostov-Yaroslavl’ Area, West Central Russia

Autor: Ole Bennike, Peter Torssander, Dmitry Subetto, Terri Lacourse, Fedor Romanenko, Barbara Wohlfarth, Pavel E. Tarasov

Publikováno v: Journal of Paleolimnology. 35:543-569

Three lake sediment sequences (lakes Nero, Chashnitsy, Zaozer’e) from the Rostov-Jaroslavl’ region north of Moscow were studied to provide information on palaeoclimatic and palaeoenvironmental changes during the past 15,000 cal yr. The multi-prox

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1455d886cf6954fbeec58a57ad428873
https://doi.org/10.1007/s10933-005-3240-4