All Outputs (211)

Evaluation of Re–Os geochronology and Os isotope fingerprinting of Late Cretaceous terrestrial oils in Taranaki Basin, New Zealand (2022)
Journal Article
Rotich, E. K., Handler, M. R., Sykes, R., Naeher, S., Selby, D., & Kroeger, K. F. (2023). Evaluation of Re–Os geochronology and Os isotope fingerprinting of Late Cretaceous terrestrial oils in Taranaki Basin, New Zealand. Marine and Petroleum Geology, 149, Article 106071. https://doi.org/10.1016/j.marpetgeo.2022.106071

The rhenium-osmium (Re–Os) isotope system has been applied to several marine and lacustrine petroleum systems worldwide, showing good potential for dating crude oils and correlating them to their source rocks. Here we explore the applicability of the... Read More about Evaluation of Re–Os geochronology and Os isotope fingerprinting of Late Cretaceous terrestrial oils in Taranaki Basin, New Zealand.

Implications of new geochronological constraints on the Aberfeldy stratiform barite deposits, Scotland, for the depositional continuity and global correlation of the Neoproterozoic Dalradian Supergroup (2022)
Journal Article
Moles, N., & Selby, D. (2023). Implications of new geochronological constraints on the Aberfeldy stratiform barite deposits, Scotland, for the depositional continuity and global correlation of the Neoproterozoic Dalradian Supergroup. Precambrian Research, 384, Article 106925. https://doi.org/10.1016/j.precamres.2022.106925

The Dalradian Supergroup of largely clastic metasediments in Scotland and Ireland is a well-known record of Neoproterozoic to Cambrian sedimentation on the Laurentian margin. Its apparent long duration, from ∼ 800 to ∼ 500 Ma, has encouraged a search... Read More about Implications of new geochronological constraints on the Aberfeldy stratiform barite deposits, Scotland, for the depositional continuity and global correlation of the Neoproterozoic Dalradian Supergroup.

High-Precision Geochronology of the Xiaojiayingzi Mo Skarn Deposit: Implications for Prolonged and Episodic Hydrothermal Pulses (2022)
Journal Article
Ouyang, H., Gaynor, S. P., Selby, D., Mao, J., Shu, Q., & Li, C. (2023). High-Precision Geochronology of the Xiaojiayingzi Mo Skarn Deposit: Implications for Prolonged and Episodic Hydrothermal Pulses. Economic geology and the bulletin of the Society of Economic Geologists, 118(2), 485-507. https://doi.org/10.5382/econgeo.4984

The timescales and duration of ore-forming processes in skarn systems are not well constrained. To better understand this, we present high-precision chemical abrasion-isotope dilution-thermal ionization mass spectrometry (CA-ID-TIMS) U-Pb zircon and... Read More about High-Precision Geochronology of the Xiaojiayingzi Mo Skarn Deposit: Implications for Prolonged and Episodic Hydrothermal Pulses.

A rapid change in magma plumbing taps porphyry copper deposit-forming magmas (2022)
Journal Article
Carter, L. C., Tapster, S. R., Williamson, B. J., Buret, Y., Selby, D., Rollinson, G. K., Millar, I., & Parvaz, D. B. (2022). A rapid change in magma plumbing taps porphyry copper deposit-forming magmas. Scientific Reports, 12(1), Article 17272. https://doi.org/10.1038/s41598-022-20158-y

Porphyry-type deposits are a vital source of green technology metals such as copper and molybdenum. They typically form in subduction-related settings from large, long-lived magmatic systems. The most widely accepted model for their formation require... Read More about A rapid change in magma plumbing taps porphyry copper deposit-forming magmas.

Organic geochemistry evidence for wildfire and elevated pO2 at the Frasnian–Famennian boundary (2022)
Journal Article
Liu, Z., Tian, H., Selby, D., Hu, J., & Over, D. J. (2022). Organic geochemistry evidence for wildfire and elevated pO2 at the Frasnian–Famennian boundary. Global and Planetary Change, 216, Article 103904. https://doi.org/10.1016/j.gloplacha.2022.103904

The Devonian experienced radiations of plants and animals, as well as a major mass extinction event during the Frasnian–Famennian (Fsingle bondF) interval. Proposed triggers have been linked to volcanism, extraterrestrial impact, sea-level fluctuatio... Read More about Organic geochemistry evidence for wildfire and elevated pO2 at the Frasnian–Famennian boundary.

The bitumen formation and Re-Os characteristics of a CO2-rich pre-salt gas reservoir of the Kwanza Basin, offshore Angola (2022)
Journal Article
Liu, J., Zhou, H., Pujol, M., Selby, D., Li, J., & Tian, H. (2022). The bitumen formation and Re-Os characteristics of a CO2-rich pre-salt gas reservoir of the Kwanza Basin, offshore Angola. Marine and Petroleum Geology, 143, Article 105786. https://doi.org/10.1016/j.marpetgeo.2022.105786

Here we present a study on the formation process and Re–Os systematics of the bitumen discovered in a CO2-rich pre-salt gas reservoir, south Kwanza Basin, offshore Angola. The magmatism-derived CO2 may have expanded downwards from the top of the rese... Read More about The bitumen formation and Re-Os characteristics of a CO2-rich pre-salt gas reservoir of the Kwanza Basin, offshore Angola.

The role of organic matter diversity on the Re-Os systematics of organic-rich sedimentary units: Insights into the controls of isochron age determinations from the lacustrine Green River Formation (2022)
Journal Article
Pietras, J. T., Dennett, A., Selby, D., & Birdwell, J. E. (2022). The role of organic matter diversity on the Re-Os systematics of organic-rich sedimentary units: Insights into the controls of isochron age determinations from the lacustrine Green River Formation. Chemical Geology, 604, Article 120939. https://doi.org/10.1016/j.chemgeo.2022.120939

The range of 187Re/188Os values measured from samples of five organic-rich lacustrine mudstones units in the Eocene Green River Formation in the easternmost Uinta Basin covaries with organic matter diversity driven by changing water column conditions... Read More about The role of organic matter diversity on the Re-Os systematics of organic-rich sedimentary units: Insights into the controls of isochron age determinations from the lacustrine Green River Formation.

Correlating deformation events onshore and offshore in superimposed rift basins: The Lossiemouth Fault Zone, Inner Moray Firth Basin, Scotland (2022)
Journal Article
Tamas, A., Holdsworth, R. E., Underhill, J. R., Tamas, D. M., Dempsey, E. D., McCarthy, D. J., McCaffrey, K. J., & Selby, D. (2022). Correlating deformation events onshore and offshore in superimposed rift basins: The Lossiemouth Fault Zone, Inner Moray Firth Basin, Scotland. Basin Research, 34(4), 1314-1340. https://doi.org/10.1111/bre.12661

The separation and characterisation of different deformation events in superimposed basins can be challenging due to the effects of overprinting and/or fault reactivation, combined with a lack of detailed geological or geophysical data. This paper sh... Read More about Correlating deformation events onshore and offshore in superimposed rift basins: The Lossiemouth Fault Zone, Inner Moray Firth Basin, Scotland.

Implications for Ediacaran biological evolution from the ca. 602 Ma Lantian biota in China (2022)
Journal Article
Yang, C., Li, Y., Selby, D., Wan, B., Guan, C., Zhou, C., & Li, X.-H. (2022). Implications for Ediacaran biological evolution from the ca. 602 Ma Lantian biota in China. Geology, 50(5), 562-566. https://doi.org/10.1130/g49734.1

The morphologically differentiated benthic macrofossils of algae and putative animal affinities of the Lantian biota in China represents the oldest known Ediacaran macroscopic eukaryotic assemblage. Although the biota provides remarkable insights int... Read More about Implications for Ediacaran biological evolution from the ca. 602 Ma Lantian biota in China.

Enhanced ocean connectivity and volcanism instigated global onset of Cretaceous Oceanic Anoxic Event 2 (OAE2) ∼94.5 million years ago (2021)
Journal Article
Li, Y.-X., Liu, X., Selby, D., Liu, Z., Montañez, I. P., & Li, X. (2022). Enhanced ocean connectivity and volcanism instigated global onset of Cretaceous Oceanic Anoxic Event 2 (OAE2) ∼94.5 million years ago. Earth and Planetary Science Letters, 578, Article 117331. https://doi.org/10.1016/j.epsl.2021.117331

Oceanic Anoxic Event 2 (OAE2) exemplifies an episode of global oceanographic and climatic changes in the mid-Cretaceous greenhouse. However, the timing and mechanism of its global initiation remain elusive. Here we report a high-resolution initial os... Read More about Enhanced ocean connectivity and volcanism instigated global onset of Cretaceous Oceanic Anoxic Event 2 (OAE2) ∼94.5 million years ago.

New onshore insights into the role of structural inheritance during Mesozoic opening of the Inner Moray Firth Basin, Scotland (2021)
Journal Article
Tamas, A., Holdsworth, R. E., Underhill, J. R., Tamas, D. M., Dempsey, E. D., Hardman, K., Bird, A., McCarthy, D., McCaffrey, K. J., & Selby, D. (2022). New onshore insights into the role of structural inheritance during Mesozoic opening of the Inner Moray Firth Basin, Scotland. Journal of the Geological Society, 179(2), jgs2021-066. https://doi.org/10.1144/jgs2021-066

The Inner Moray Firth Basin (IMFB) forms the western arm of the North Sea trilete rift system that initiated mainly during the Late Jurassic–Early Cretaceous with the widespread development of major NE–SW-trending dip-slip growth faults. The IMFB is... Read More about New onshore insights into the role of structural inheritance during Mesozoic opening of the Inner Moray Firth Basin, Scotland.

Osmium and lithium isotope evidence for weathering feedbacks linked to orbitally paced organic carbon burial and Silurian glaciations (2021)
Journal Article
Sproson, A. D., Pogge von Strandmann, P. A., Selby, D., Jarochowska, E., Frýda, J., Hladil, J., Loydell, D. K., Slavík, L., Calner, M., Maier, G., Munnecke, A., & Lenton, T. M. (2022). Osmium and lithium isotope evidence for weathering feedbacks linked to orbitally paced organic carbon burial and Silurian glaciations. Earth and Planetary Science Letters, 577, Article 117260. https://doi.org/10.1016/j.epsl.2021.117260

The Ordovician (∼487 to 443 Ma) ended with the formation of extensive Southern Hemisphere ice sheets, known as the Hirnantian glaciation, and the second largest mass extinction in Earth History. It was followed by the Silurian (∼443 to 419 Ma), one o... Read More about Osmium and lithium isotope evidence for weathering feedbacks linked to orbitally paced organic carbon burial and Silurian glaciations.

Tracking magmatism and oceanic change through the early Aptian Anoxic Event (OAE 1a) to the late Aptian: Insights from osmium isotopes from the westernmost Tethys (SE Spain) Cau Core (2021)
Journal Article
Martínez-Rodríguez, R., Selby, D., Castro, J. M., de Gea, G. A., Nieto, L. M., & Ruiz-Ortiz, P. A. (2021). Tracking magmatism and oceanic change through the early Aptian Anoxic Event (OAE 1a) to the late Aptian: Insights from osmium isotopes from the westernmost Tethys (SE Spain) Cau Core. Global and Planetary Change, 207, Article 103652. https://doi.org/10.1016/j.gloplacha.2021.103652

Some of the major Carbon cycle perturbations of the Phanerozoic occurred during the Aptian, in relation to magmatism. The highest temperatures reconstructed for the Cretaceous Period correspond to the Oceanic Anoxic Event of the early Aptian (OAE 1a)... Read More about Tracking magmatism and oceanic change through the early Aptian Anoxic Event (OAE 1a) to the late Aptian: Insights from osmium isotopes from the westernmost Tethys (SE Spain) Cau Core.

Melting of the Chhota Shigri Glacier, Western Himalaya, Insensitive to Anthropogenic Emission Residues: Insights From Geochemical Evidence (2021)
Journal Article
Nizam, S., Sen, I. S., Shukla, T., & Selby, D. (2021). Melting of the Chhota Shigri Glacier, Western Himalaya, Insensitive to Anthropogenic Emission Residues: Insights From Geochemical Evidence. Geophysical Research Letters, 48(19), Article e2021GL092801. https://doi.org/10.1029/2021gl092801

Himalayan glaciers are invariably covered by supra-glacial debris. Of these glaciers, the Chhota Shigri Glacier (CSG) in the western Himalaya has minimal debris cover (3.4%), yet has a comparable melt rate to other Himalayan glaciers. Utilizing osmiu... Read More about Melting of the Chhota Shigri Glacier, Western Himalaya, Insensitive to Anthropogenic Emission Residues: Insights From Geochemical Evidence.

NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION (2021)
Journal Article
Aghayeva, V., Sachsenhofer, R., van Baak, C., Bechtel, A., Hoyle, T., Selby, D., Shiyanova, N., & Vincent, S. (2021). NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION. Journal of Petroleum Geology, 44(3), 349-384. https://doi.org/10.1111/jpg.12797

The Maikop Group and the Diatom Formation constitute the two main source rocks in the South Caspian Basin and onshore Azerbaijan where large-scale oil production began more than 150 years ago. However, the stratigraphic distribution of the source roc... Read More about NEW GEOCHEMICAL INSIGHTS INTO CENOZOIC SOURCE ROCKS IN AZERBAIJAN: IMPLICATIONS FOR PETROLEUM SYSTEMS IN THE SOUTH CASPIAN REGION.

Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry (2021)
Journal Article
Saintilan, N. J., Sheldrake, T. E., Creaser, R. A., Selby, D., Zieg, J., Boyce, A., & Chelle-Michou, C. (2021). Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry. Lithosphere, 2021(1), Article 7866186. https://doi.org/10.2113/2021/7866186

The ca. 1,500 to 1,325 Ma Mesoproterozoic Belt-Purcell Basin is an exceptionally preserved archive of Mesoproterozoic Earth and its paleo-environmental conditions. The Belt-Purcell Basin is also host to world-class base metal sediment-hosted minerali... Read More about Syn-sedimentary to diagenetic Cu ± Co mineralization in Mesoproterozoic pyritic shale driven by magmatic-hydrothermal activity on the edge of the Great Falls tectonic zone – Black Butte, Helena Embayment, Belt-Purcell Basin, USA: Evidence from sulfide Re-Os isotope geochemistry.

Upper Devonian mercury record from North America and its implications for the Frasnian–Famennian mass extinction (2021)
Journal Article
Liu, Z., Percival, L. M., Vandeputte, D., Selby, D., Claeys, P., Over, D. J., & Gao, Y. (2021). Upper Devonian mercury record from North America and its implications for the Frasnian–Famennian mass extinction. Palaeogeography, Palaeoclimatology, Palaeoecology, 576, Article 110502. https://doi.org/10.1016/j.palaeo.2021.110502

The Frasnian–Famennian biotic crisis (~372 Ma) was one of the “big five” mass extinction events in the Phanerozoic. This event was associated with dramatic climatic and oceanographic perturbations, including oceanic anoxia, global cooling, sea-level... Read More about Upper Devonian mercury record from North America and its implications for the Frasnian–Famennian mass extinction.

Cretaceous intermediate sulfidation ore system in the Dongkeng Volcanic Basin, SE China: constraints from the Dongji and Maluntou gold deposits (2021)
Journal Article
Chen, M., Wei, J., Selby, D., Li, Y., Shi, W., & Zhao, Y. (2021). Cretaceous intermediate sulfidation ore system in the Dongkeng Volcanic Basin, SE China: constraints from the Dongji and Maluntou gold deposits. Ore Geology Reviews, 135, Article 104202. https://doi.org/10.1016/j.oregeorev.2021.104202

The Dongji (>12.5 t Au @ 4.27 g/t) and Maluntou (>5.0 t Au @ 3.70 g/t) gold deposits are the two largest ones in the Dongkeng Volcanic Basin (DVB), SE China, that are hosted by volcanic rocks. Mineralization is represented by three stages (i.e., stag... Read More about Cretaceous intermediate sulfidation ore system in the Dongkeng Volcanic Basin, SE China: constraints from the Dongji and Maluntou gold deposits.

New multicellular marine macroalgae from the early Tonian of northwestern Canada (2021)
Journal Article
Maloney, K. M., Halverson, G. P., Schiffbauer, J. D., Xiao, S., Gibson, T. M., Lechte, M. A., Cumming, V. M., Millikin, A. E., Murphy, J. G., Wallace, M. W., Selby, D., & Laflamme, M. (2021). New multicellular marine macroalgae from the early Tonian of northwestern Canada. Geology, 49(6), 743-747. https://doi.org/10.1130/g48508.1

Molecular phylogenetic data suggest that photosynthetic eukaryotes first evolved in freshwater environments in the early Proterozoic and diversified into marine environments by the Tonian Period, but early algal evolution is poorly reflected in the f... Read More about New multicellular marine macroalgae from the early Tonian of northwestern Canada.

Sulfide recrystallization and gold remobilization during the 2.0 Ga stage of the Minas Orogeny: implications for gold mineralization in the Quadrilátero Ferrífero area, Brazil (2021)
Journal Article
Brando Soares, M., Selby, D., Robb, L., & Corrêa Neto, A. V. (2021). Sulfide recrystallization and gold remobilization during the 2.0 Ga stage of the Minas Orogeny: implications for gold mineralization in the Quadrilátero Ferrífero area, Brazil. Economic geology and the bulletin of the Society of Economic Geologists, 116(6), 1455-1466. https://doi.org/10.5382/econgeo.4830

The historic Quadrilátero Ferrífero mining district in Brazil is a polydeformed Archean terrane recording several tectonic events. This history has hampered the accurate dating of its important gold deposits, given that most of the geochronological c... Read More about Sulfide recrystallization and gold remobilization during the 2.0 Ga stage of the Minas Orogeny: implications for gold mineralization in the Quadrilátero Ferrífero area, Brazil.