Research
Large Igneous Provinces, Mafic Dyke Swarms, and What They Tell Us
Using the geochronological record of major mafic magmatic events, mainly through U-Pb dating of the mineral baddeleyite, to examine the Earth's history of mass extinctions, paleocontinental assembly, mineral deposit formation, and other stuff.
Chen W.-Y., Shellnutt J. G., Bhat G. M., Tejada M. L. G., Suzuki K., Denyszyn S. W. (2023) Geochronology and geochemistry of the Panjal Traps from the southern Pir Panjal Range, Kashmir, India. Lithos 436-437: 106967. (PDF)
Petersson A., Kemp A. I. S., Denyszyn S. W. (2022) The Kelly dyke swarm: A 3317 Ma large igneous province? Australian Journal of Earth Sciences 69: 1207-1214. (PDF)
Pham T. T., Shellnutt J. G., Tran T.-A., Denyszyn S. W., Iizuka, Y. (2022) Petrogenesis of silicic rocks of the Phan Si Pan – Tu Le region of the Emeishan Large Igneous Province, northwestern Vietnam. Geological Society of London Special Publication 518: SP518-2020-253. (PDF)
Wang C., Peng P., Li Z.-X., Pisarevsky S., Denyszyn S. W., Liu Y., Gamal el Dien H., Su X. (2020) The 1.24–1.21 Ga Licheng large igneous province in the North China Craton: Implications for paleogeographic reconstruction. Journal of Geophysical Research: Solid Earth 125: e2019JB019005. (PDF)
Shellnutt J. G., Pham T. T., Denyszyn S. W., Yeh M.-W., Tran T.-A. (2020) Magmatic duration of the Emeishan large igneous province: Insight from northern Vietnam. Geology 48: 457-461. (PDF)
Zhong Y., Mundil R., Chen J., Yuan D., Denyszyn S. W., Jost A., Payne J., He B., Shen S., Xu Y. (2020) Geochemical, biostratigraphic, and high-resolution geochronological constraints on the waning stage of the Emeishan Large Igneous Province. GSA Bulletin 132: 1969-1986. (PDF)
Ramsay R. R., Eves A. E., Denyszyn S. W., Wingate M. T. D., Fiorentini M., Gwalani L. G., Rogers K. A. (2019) Geology and geochronology of the Paleoproterozoic Hart Dolerite, Western Australia. Precambrian Research 335: 105482. (PDF)
Stark J. C., Wang X.-C., Denyszyn S. W., Li, Z.-X., Rasmussen B., Zi J.-W., Sheppard S. (2019) Newly-identified 1.89 Ga mafic dyke swam in the Archean Yilgarn craton, Western Australia, suggests a connection with India. Precambrian Research 329: 156-169. (PDF)
Shellnutt J. G., Hari K. R., Liao A. C., Denyszyn S. W., Vishwakarma N., Deshmukh S. D. (2019) Petrogenesis of the 1.85 Ga Sonakhan dyke swarm, Bastar Craton, India. Lithos 334-335: 88-101. (PDF)
Liao A. C., Shellnutt J. G., Hari K. R., Denyszyn S. W., Vishwakarma N., Verma C. B. (2019) A petrogenetic relationship between 2.37 Ga boninitic dyke swarms of the Indian Shield: Evidence from the Central Bastar Craton and the NE Dharwar Craton. Gondwana Research 69: 193-211. (PDF)
Kirscher U., Liu Y., Li Z.-X., Mitchell R., Pisarevsky S., Denyszyn S. W., Nordsvan A. (2019) Paleomagnetism of the Hart Dolerite (Kimberley, Western Australia): Two-stage assembly of the supercontinent Nuna? Precambrian Research 329: 170-181. (PDF)
Donskaya T. V., Gladkochub D. P., Mazukabzov A. M., Denyszyn S., Pisarevsky S. A., Motova Z. L., Demonterova E. I. (2018) The oldest (~1.9 Ga) metadolerites of the southern Siberian craton: age, petrogenesis, and tectonic setting. Russian Geology and Geophysics 59: 1548-1559.
Stark J. C., Wang X.-C., Li Z.-X., Denyszyn S. W., Rasmussen B., Zi J.-W. (2018) 1.39 Ga mafic dyke swarm in southwestern Yilgarn Craton marks Nuna to Rodinia transition in the West Australian Craton. Precambrian Research 316: 291-304. (PDF)
Denyszyn S. W., Fiorentini M. L., Maas R., Dering G. (2018) A bigger tent for CAMP. Geology 46: 823-826. (PDF)
Cox G. M., Foden J., Halverson G. P., Denyszyn S. W., Macdonald F. A. (2018) Cryogenian magmatism along the northwestern margin of Laurentia: Plume or Rift? Precambrian Research 319: 144-157. (PDF)
Shellnutt J. G., Hari K. R., Liao A., Denyszyn S. W., Vishwakarma N. (2018) A 1.88 Ga giant radiating dyke swarm across Southern India and Western Australia. Precambrian Research 308: 58-74. (PDF)
Cox G. M., Halverson G. P., Stevenson R. S., Vokaty M., Poirier A., Kunzmann M., Li Z.-X., Dudàs F., Denyszyn S. W., Strauss J. V, Macdonald F. A. (2016) A basalt weathering trigger for snowball Earth. Earth and Planetary Science Letters 446: 89-99. (PDF)
Peng P., Ernst R., Hou G., Soderlund U., Zhang S., Hamilton M., Xu Y., Denyszyn S., Mège D., Pisarevskiy S., Srivastava R., Kusky T. (2016) Dyke swarms: Keys to paleogeographic reconstructions. Science Bulletin 61: 1669-1671. (PDF)
Bright R., Amato J. M., Denyszyn S. W., Ernst R. E. (2014) U-Pb geochronology of 1.1 Ga diabase in the southwestern United States: Testing models for the origin of a post-Grenville large igneous province. Lithosphere 6: 135-156. (PDF)
Denyszyn S. W., Halls H. C. (2014) Comment on “A new model for the Paleogene motion of Greenland relative to North America: Plate reconstructions of the Davis Strait and Nares Strait regions between Canada and Greenland” by G. N. Oakey and J. A. Chalmers. Journal of Geophysical Research: Solid Earth 119: 360-363. (PDF)
Denyszyn S. W., Feinberg, J. M., Renne P. R.., Scott G. R. (2013) Revisiting the age and paleomagnetism of the Modipe Gabbro of South Africa. Precambrian Research 238: 176-185. (PDF)
Shellnutt J. G., Denyszyn S. W.., Mundil R. (2012) Precise age determination of intrusive rocks from the Permian Emeishan large igneous province (SW China). Gondwana Research 22: 188-126. (PDF)
Halls H. C., Hamilton M. A., Denyszyn S. W. (2011) The Melville Bugt dyke swarm of Greenland: A connection with the 1.5-1.6 Ga Scandinavian rapakivi granite province? in: Srivastava R. K. (ed.) Dyke swarms: Keys for geodynamic interpretation. Springer-Verlag, Heidelberg. 596 pp. (PDF)
Denyszyn S. W., Halls H. C., Davis D. W., Evans, D. A. D. (2009) Paleomagnetism and U-Pb geochronology of Franklin dykes in High Arctic Canada and Greenland: A revised age and paleomagnetic pole constraining block rotations in the Nares Strait region. Canadian Journal of Earth Sciences 46: 689-705. (PDF)
Denyszyn S. W., Davis D. W., Halls H. C. (2009) Paleomagnetism and U-Pb geochronology of the Clarence Head dykes, Arctic Canada: Orthogonal emplacement of mafic dykes in a large igneous province. Canadian Journal of Earth Sciences 46: 155-167. (PDF)
Denyszyn S. W., Halls H. C., Davis D. W. (2006) A paleomagnetic, geochemical and U-Pb geochronological comparison of the Thule (Greenland) and Devon Island (Canada) dyke swarms and its relevance to the Nares Strait problem. Polarforschung 73: 63-75.
The Formation of Granites and the Growth of Continental Crust
Using the high-resolution geochronology afforded by the CA-ID-TIMS U-Pb methodology on zircon, establishing the timing and tempo of magmatic processes allows us to determine the ways felsic igneous activity is reflected in the continental rock record.
Stirling J. E., Denyszyn S. W., Kemp A. I. S., Loucks R. R., Hammerli J., Fiorentini M. (2023) Formation of lower arc crust by magmatic underplating revealed by high-precision geochronology. Geology 51: 1101-1105. (PDF)
Hayman P. C., Bolz P., Senyah G., Tegan E., Denyszyn S., Murphy D. T., Jessell M. W. (2023) Physical and geochemical reconstruction of a 2.35–2.1 Ga volcanic arc (Toumodi Greenstone Belt, Ivory Coast, West Africa). Precambrian Research 389: 107029. (PDF)
Stirling J. E., Kemp A. I. S., Denyszyn S. W. (2022) U-Pb geochronology of the Silurian-Devonian Bega Batholith, south-eastern Australia: Insights into the origin and development of I-type granites. Gondwana Research 111: 1-19. (PDF)
Shellnutt J. G., Denyszyn S. W., Pang K. N. (2021) Editorial: Granite Petrogenesis and Geodynamics. Frontiers in Earth Science 8: 637729. (PDF)
Shellnutt J. G., Pham N. H. T., Denyszyn S. W., Yeh M.-W., Li T.-Y. (2017) Timing of collisional and post-collisional Pan-African Orogeny silicic magmatism in south-central Chad. Precambrian Research 301: 113-123. (PDF)
Ng S. W.-P., Whitehouse M. J., Tam T. P.-Y., Jayasingha P., Wong J. P-M., Denyszyn S. W., Yin J. S-Y., Chang S-C. (2017) Circa 820-640 Ma SIMS U-Pb age signal in the Vijayan Complex, eastern Sri Lanka: Re-evaluation of the Highland-Vijayan tectonic boundary. Precambrian Research 294: 244-256. (PDF)
Denyszyn S. W., Mundil R., Brownlee S. J., Renne P. R. R. (2011) High-precision U- Pb geochronology of the Butedale Pluton, British Columbia. Canadian Journal of Earth Sciences 48: 557-565. (PDF)
The Emplacement of Magmatic Ore Deposits
Determining the rate and timing of fluid and magma transport in the Earth's crust is critical for establishing the mechanisms by which ore deposits form.
Locmelis M., Moroni M., Denyszyn S. W., Webb L. E., Sessa G., Caruso S., Mathur R., Nanzad B. (2021) On the formation of magmatic sulfide systems in the crust by long-lived mass transfer through the lithosphere: Insights from the Valmaggia pipe, Ivrea-Verbano Zone, Italy. Terra Nova 33: 137-149. (PDF)
Le Vaillant M., Barnes S. J., Mole D. R., Fiorentini M. L., Laflamme C., Denyszyn S. W., Austen J., Patterson B., Godel B., Hicks J., Mao Y.-J., Neaud A. (2020) Multidisciplinary study of a complex magmatic system: The Savannah Ni-Cu-Co camp, Western Australia. Ore Geology Reviews 117: 103292. (PDF)
Deng Y.-F., Yuan F., Hollings P., Zhou T., Song X.-Y., Fu B., Denyszyn S. W., Zhao B. (2020) Magma generation and sulfide saturation of Permian mafic-ultramafic intrusions from the western part of the Northern Tianshan in NW China: Implications for Ni-Cu mineralization. Mineralium Deposita 55: 515-534. (PDF)
Fiorentini M. L., LaFlamme C., Denyszyn S. W., Mole D., Maas R., Locmelis M., Caruso S., Bui H. (2018) Post-collisional alkaline magmatism as a gateway for metal and sulfur enrichment of the lower continental crust. Geochimica et Cosmochimica Acta 223: 175-197. (PDF)
Locmelis M., Fiorentini M., Rushmer T., Arevalo R., Adam J., Denyszyn S. W. (2016) Sulfur and metal fertilization of the lower continental crust. Lithos 244: 74-93. (PDF)
Other Stuff
I mean, why not, right?
Joseph C., Fougerouse D., Reddy S. M., Olierook H. K. H., Tacchetto T., Kennedy A., Saxey D.W., Rickard W. D. A., Denyszyn S. W., Dodd A. (2023) Radiogenic Pb in xenotime trapped in nanoscale inclusions of apatite during fluid alteration. Chemical Geology 630: 121444. (PDF)
Li Y., Zheng D., Sha J., Zhang H., Denyszyn S. W., Chang S.-C. (2023) Lower Cretaceous Hailar amber: The oldest known amber from China. Cretaceous Research 145: 105472. (PDF)
Yang B., Collins A. S., Cox G. M., Jarrett A., Denyszyn S. W., Blades M. L., Farkas J., Glorie S. (2020) Using Mesoproterozoic sedimentary geochemistry to reconstruct basin tectonic geography and link organic carbon productivity to nutrient flux from a Northern Australian large igneous province. Basin Research 32: 1734-1750. (PDF)
Wang M., Zhong Y., He B., Denyszyn S. W., Xu Y. (2020) Geochronology and geochemistry of the fossil-flora-bearing Wuda Tuff in North China Craton and its tectonic implications. Lithos 364-365: 105485. (PDF)
Munson T. J., Denyszyn S. W., Simmons J. M., Kunzmann M. (2020) A 1642 Ma age for the Fraynes Formation, Birrindudu Basin, confirms correlation with the Barney Creek Formation, southern McArthur Basin, Northern Territory. Australian Journal of Earth Sciences 67: 321-330. (PDF)
Samsu A., Cruden A. R., Hall M., Micklethwaite S., Denyszyn S. W. (2019) The influence of basement faults on local extension directions: Insights from potential field geophysics and field observations. Basin Research 31: 782-807. (PDF)
Belica M. E., Tohver E., Poyatos-Moré M., Flint S., Parra-Avila L., Hodgson D., Lanci L., Denyszyn S., Pisarevsky S. (2017) Refining the chronostratigraphy of the Karoo Basin, South Africa: Magnetostratigraphic constraints support an Early Permian age for the Ecca Group. Geophysical Journal International 211: 1354-1374. (PDF)
Belica M., Jourdan F., Tohver E., Pisarevsky S. A., Denyszyn S. W., George A. D. (2017) Paleomagnetism of the middle Permian Sydney Basin, eastern Gondwana, and the end of the Kiaman Reverse Superchron. Tectonophysics 699: 178-198. (PDF)
Schmieder M., Tohver E., Jourdan F., Denyszyn S., Haines P. (2015) Zircons from the Acraman impact melt rock (South Australia): Shock metamorphism, U-Pb and 40Ar-39Ar systematics, and implications for the isotopic dating of impact events. Geochimica et Cosmochimica Acta 161: 71-100. (PDF)
Tessalina S., Jourdan F., Nunes L., Kennedy A., Denyszyn S., Puchtel I., Touboul M., Creaser R., Boyet M., Belousova E., Trinquier A. (2014) Application of radiogenic isotopes in geosciences - Overview and perspectives. In: Grice K., Keely B. (eds) Principles and practice of analytical techniques in geosciences. RSC Detection Science Series, Royal Society of Chemistry Publishing: Cambridge. 384 pp.
Schmieder M., Tohver E., Denyszyn S., Jourdan F., Haines P. W. (2013) Shock-Metamorphosed Zircons from the Acraman Impact Structure (South Australia): Tracers of Multi-Stage Impact Crater Evolution. LPI Contributions, 1719: 1991. (PDF)