What is new on IsoFind

Deng et al. (2000), Strontium isotope geochemistry of the Lemachang independent silver ore deposit, northeastern Yunnan, China, Science in China (Series D) 43(4):337-346.

Added to the Atlas: 7 values (87Sr/86Sr, δ18O) for Lemachang.

Vaněk et al. (2026), Silver geochemistry and isotope systematics in Ag-rich mine tailings from Namibia, Soil and Water Research 21(1):1-8.

Added to the Atlas: 3 values (δ109Ag) for Namib Lead & Zinc, Namib Lead & Zinc flotation tailings, profile P1 and Namib Lead & Zinc flotation tailings, profile P2.

Tepsell et al. (2024), Silver isotope analysis and systematics of native gold from the Rajapalot Co-enriched gold deposit, Finnish Lapland, Mineralium Deposita 59:931-947.

Added to the Atlas: 1 value (ε109Ag) for Raja (Rompas-Rajapalot gold system).

Brügmann et al. (2019), Silver isotope analysis of gold nuggets: An appraisal of instrumental isotope fractionation effects and potential for high-resolution tracing of placer gold, Chemical Geology 516:59-67.

Added to the Atlas: 2 values (δ109Ag) for Tipuani placer and Rhine gold placers.

Vaňková et al. (2026), Silver is immobile in Ag-rich mine waste: Isotopic evidence from anthropogenic soils, Journal of Geochemical Exploration 282:107963.

Added to the Atlas: 7 values (δ109Ag) for Kutná Hora, Kutná Hora anthropogenic soils, profile P1, Kutná Hora anthropogenic soils, profile P2 and Kutná Hora anthropogenic soils, profile P3.

Milot et al. (2022), Silver isotope and volatile trace element systematics in galena samples from the Iberian Peninsula and the quest for silver sources of Roman coinage, Geology 50(4):422-426.

Added to the Atlas: 12 values (ε109Ag) for Priorat, Aliva, Sierra Almagrera (Las Herrerías, Almería), Sierra de Cartagena-La Unión, Mazarrón, Cabo de Gata (Almería), Linares-La Carolina district, Alcudia Valley-Los Pedroches and 4 more.

Kerrich et al. (1986), The silver deposits at Cobalt and Gowganda, Ontario. III: Hydrothermal regimes and source reservoirs, Canadian Journal of Earth Sciences 23:1519-1550.

Added to the Atlas: 17 values (δ18O, δD, δ13C, 87Sr/86Sr) for Cobalt district and Gowganda.

Argapadmi et al. (2018), Silver isotopes as a source and transport tracer for gold: Sheba and New Consort gold mines, Barberton greenstone belt, Economic Geology 113(7):1553-1570.

Added to the Atlas: 11 values (ε109Ag, 109Ag/107Ag) for Witwatersrand basin, Keweenaw native silver district, Freiberg, Sheba (Barberton), New Consort (Barberton), Mount Charlotte (Kalgoorlie), Brusson (Val d'Ayas), Zacualpan and 3 more; 1 fractionation measurement.

For many isotopic systems involving non-conventional elements, there is no standardized zero value; instead, each research team uses its own internal standard solutions, which makes comparing values ​​between laboratories highly cumbersome.

IsoFind provides free access to its database of comparisons for standards and reference materials.

It covers 24 isotopic systems and over 330 standards and reference materials—all with cited sources—and provides detailed breakdowns for every calculation.

To be found in the Processes tab of the Atlas, with their source.

To be found in the Processes tab of the Atlas, with their source.

New deposits: Bou Azzer (Bouismas mine), Houzhanggou, Qianhe, Yixingzhai, Erentaolegai, Yueyang (Bitian), Niujuan, Qiubudong, Shihu, Chongyanggou, Prairie Creek, Prairie Creek, Mississippi Valley-type showings and 11 more.

Peng et al. (2025), de Ronde et Blattner (1988), Changkakoti et al. (1986), Guo et al. (2017), Chen et al. (2004), Zeng et al. (2026), Chen et Zhang (2004), Zhong et al. (2017), Li et al. (2017), Sun et al. (2014), Paradis (2007), Mathur et al. (2010), Scherbarth et Spry (2006), Zhai et al. (2019), Yoo et al. (2010), Bai et al., 2019, Wall et al., 2006 ; Mathur et al., 2010, Fernandez et Borrok, 2009 ; Mathur et al., 2010 and Maréchal et Sheppard, 2002 ; Ehrlich et al., 2004 ; Mathur et al., 20….

Records concerned: Victorian Goldfields.

New deposits: Tasmanian osmiridium placers (Adamsfield, Kinsella Gully), Nevyansk (Ural osmiridium placers), Colombian platinum placers (unspecified origin), Waratah Bay osmiridium placers (Victoria), Fish Creek (Papua New Guinea osmiridium), Bushveld, UG1 chromitite, Acoje (Zambales ophiolite), Rogue River platinum placers (Oregon), Port Orford placers (Oregon), Cerro Vanguardia, Colquijirca, Cerro de Pasco and 98 more.

New sites: Main Endeavour hydrothermal field (Juan de Fuca Ridge), Axial Volcano, Inferno vent (Juan de Fuca Ridge), Cleft Segment, Monolith and Pipe Organ vents (Juan de Fuca Ridge), ODP Hole 1026B, eastern flank of the Juan de Fuca Ridge (low-temperature fluid), Axial Volcano, seawater at 1764 m (Juan de Fuca Ridge), East Pacific Rise, metalliferous sediments (cores PC85, PC87 and AII54/29), Bauer Basin, metalliferous sediments (cores CN100/137, FCC 114 to 116 and PC8), Baltimore Harbor, sediment (site L), Back River, surface sediment downstream of the wastewater plant, Upper Chesapeake Bay, core 4, Fairhaven, Calvert Formation shoreline deposit, Susquehanna at Harrisburg, suspended matter and 34 more.

1 value also added to Victorian Goldfields.

Hu et al. (1996), Pal'yanova et al. (2016), Jiang et al. (2024), Allègre & Luck (1980), McCandless & Ruiz (1991), Mathur et al. (2018), Levresse et al. (2004), Church et al. (2005), Wang et al. (2022), Horan et al. (1994), Martin (1991), Meibom et al. (2004), Tassara et al. (2022), Saintilan et al. (2021), Gao et al. (2020), Su et al. (2016), Trumbull et al. (2019), Yavuz et al. (2011), Zeng et al. (2020), Shawe (2011) and 27 more.

New deposits: Shangzhuang, Panzhihua, Minas Ragra, Mibladen, Wagholi (cavansite), Kunimiyama, Kraubath, Hochgrössen, Alexandrinka, Freetown Layered Complex (Guma Water eluvial nuggets), Ladolam (Lihir Island), Zavar (Zvar Habaqbuq, Wadi Paran) and 3 more.

New sites: Ganges at Patna, Ganges at Kaudiyal, Brahmaputra at Guwahati, Indus at Besham, Mississippi (dissolved osmium), Columbia (dissolved osmium), Connecticut (dissolved osmium), Vistula (dissolved osmium), DSDP Site 261, sediments off the Sunda trench, Eastern Mediterranean, DSDP Sites 127 and 128 and ODP Site 970 (sediments), Lateritic profile on basalt, northern Hainan, Eastern Pacific, East Pacific Rise at 9°46′ N (seawater osmium) and 54 more.

Hart & Kinloch (1989), Dickin et al. (1992), Schuth et al. (2017), Nadeau et al. (2025), Emproto et al. (2022), Jiang et al. (2024), Lv et al. (2024), Yano et al. (2023), Malitch et al. (2003), Tessalina et al. (2008), Hattori et al. (1991), McInnes et al. (1999), Brauns et al. (2020), Chen et al. (2022), Sharma et al. (1999), Sharma & Wasserburg (1997), Kommescher et al. (2023), He et al. (2022), Woodhouse et al. (1999), Huh et al. (2004) and 6 more.