Carbon isotopes and the rise of atmospheric oxygen JA Karhu, HD Holland Geology 24 (10), 867-870, 1996 | 651 | 1996 |
The implication of the oxygen isotope records in coexisting cherts and phosphates J Karhu, S Epstein Geochimica et Cosmochimica Acta 50 (8), 1745-1756, 1986 | 304 | 1986 |
Chemostratigraphy of the Paleoproterozoic Duitschland Formation, South Africa: implications for coupled climate change and carbon cycling A Bekker, AJ Kaufman, JA Karhu, NJ Beukes, QD Swart, LL Coetzee, ... American Journal of Science 301 (3), 261-285, 2001 | 249 | 2001 |
Paleoproterozoic evolution of the carbon isotope ratios of sedimentary carbonates in the Fennoscandian Shield. JA Karhu | 212 | 1996 |
Carbon isotope record for the onset of the Lomagundi carbon isotope excursion in the Great Lakes area, North America A Bekker, JA Karhu, AJ Kaufman Precambrian Research 148 (1-2), 145-180, 2006 | 185 | 2006 |
Chemostratigraphy of Paleoproterozoic carbonate successions of the Wyoming Craton: tectonic forcing of biogeochemical change? A Bekker, JA Karhu, KA Eriksson, AJ Kaufman Precambrian Research 120 (3-4), 279-325, 2003 | 182 | 2003 |
Evidence for Paleoproterozoic cap carbonates in North America A Bekker, AJ Kaufman, JA Karhu, KA Eriksson Precambrian Research 137 (3-4), 167-206, 2005 | 160 | 2005 |
Chemostratigraphy of carbonates from the Minas Supergroup, Quadrilátero Ferryífero (Iron Quadrangle), Brazil: A stratigraphic record of early proterozoic atmospheric … A Bekker, AN Sial, JA Karhu, VP Ferreira, CM Noce, AJ Kaufman, ... American Journal of Science 303 (10), 865-904, 2003 | 125 | 2003 |
Regional and seasonal trends in the oxygen and hydrogen isotope ratios of Finnish groundwaters: a key for mean annual precipitation NM Kortelainen, JA Karhu Journal of Hydrology 285 (1-4), 143-157, 2004 | 122 | 2004 |
Collection of radiocarbon dates on the mammoths (Mammuthus primigenius) and other genera of Wrangel Island, northeast Siberia, Russia SL Vartanyan, KA Arslanov, JA Karhu, G Possnert, LD Sulerzhitsky Quaternary Research 70 (1), 51-59, 2008 | 114 | 2008 |
MIS 3 mammoth remains from Sweden—implications for faunal history, palaeoclimate and glaciation chronology P Ukkonen, L Arppe, M Houmark-Nielsen, KH Kjær, JA Karhu Quaternary Science Reviews 26 (25-28), 3081-3098, 2007 | 97 | 2007 |
Nitrogen isotopic composition of ammoniated phyllosilicates: case studies from Precambrian metamorphosed sedimentary rocks D Papineau, SJ Mojzsis, JA Karhu, B Marty Chemical Geology 216 (1-2), 37-58, 2005 | 94 | 2005 |
Multiple sulfur isotopes of sulfides from sediments in the aftermath of Paleoproterozoic glaciations D Papineau, SJ Mojzsis, CD Coath, JA Karhu, KD McKeegan Geochimica et Cosmochimica Acta 69 (21), 5033-5060, 2005 | 92 | 2005 |
Oxygen isotope values of precipitation and the thermal climate in Europe during the middle to late Weichselian ice age L Arppe, JA Karhu Quaternary Science Reviews 29 (9-10), 1263-1275, 2010 | 91 | 2010 |
Nurmes paragneisses in eastern Finland, Karelian craton: provenance, tectonic setting and implications for Neoarchaean craton correlation A Kontinen, A Käpyaho, H Huhma, J Karhu, DI Matukov, A Larionov, ... Precambrian Research 152 (3-4), 119-148, 2007 | 64 | 2007 |
Tracing the decomposition of dissolved organic carbon in artificial groundwater recharge using carbon isotope ratios NM Kortelainen, JA Karhu Applied Geochemistry 21 (4), 547-562, 2006 | 54 | 2006 |
Field, petrophysical and carbon isotope studies on the Lapland Granulite Belt: implications for deep continental crust T Korja, P Tuisku, T Pernu, J Karhu Terra Nova 8 (1), 48-58, 1996 | 53 | 1996 |
Correlation of the stratigraphic cover of the Pilbara and Kaapvaal cratons recording the lead up to Paleoproterozoic Icehouse and the GOE A Bekker, B Krapež, JA Karhu Earth-Science Reviews 211, 103389, 2020 | 42 | 2020 |
Thriving or surviving? The isotopic record of the Wrangel Island woolly mammoth population L Arppe, JA Karhu, S Vartanyan, DG Drucker, H Etu-Sihvola, H Bocherens Quaternary Science Reviews 222, 105884, 2019 | 41 | 2019 |
Widespread occurrences of variably crystalline 13C-depleted graphitic carbon in banded iron formations MS Dodd, D Papineau, ZB She, C Manikyamba, YS Wan, J O'Neil, ... Earth and Planetary Science Letters 512, 163-174, 2019 | 38 | 2019 |