Scott Bryan

Crustal and thermal structure of the Thomson Orogen: constraints from the geochemistry, zircon U–Pb age, and Hf and O isotopes of subsurface granitic rocks

Publisher: Informa UK Limited

Date: 26-04-2018

DOI: 10.1080/08120099.2018.1447998

Silicic volcanism: An undervalued component of large igneous provinces and volcanic rifted margins

Publisher: Geological Society of America

Date: 2002

DOI: 10.1130/0-8137-2362-0.97

Stratigraphy, facies architecture and tectonic implications of the Upper Devonian to Lower Carboniferous Campwyn Volcanics of the northern New England Fold Belt

Publisher: Informa UK Limited

Date: 06-2003

DOI: 10.1046/J.1440-0952.2003.00999.X

Comment on ‘Paleokarst on the top of the Maokou Formation: Further evidence for domal crustal uplift prior to the Emeishan flood volcanism’

Publisher: Elsevier BV

Date: 08-2011

DOI: 10.1016/J.LITHOS.2011.03.021

Welding and rheomorphism of phonolitic fallout deposits from the Las Cañadas caldera, Tenerife, Canary Islands

Publisher: Geological Society of America

Date: 07-2002

DOI: 10.1130/0016-7606(2002)114<0883:WAROPF>2.0.CO;2

Heat-producing crust regulation of subsurface temperatures: A stochastic model re-evaluation of the geothermal potential in southwestern Queensland, Australia

Publisher: Elsevier BV

Date: 07-2014

DOI: 10.1016/J.GEOTHERMICS.2014.01.005

Revised definition of Large Igneous Provinces (LIPs)

Publisher: Elsevier BV

Date: 2008

DOI: 10.1016/J.EARSCIREV.2007.08.008

Lithic breccias in intermediate volume phonolitic ignimbrites, Tenerife (Canary Islands): constraints on pyroclastic flow depositional processes

Publisher: Elsevier BV

Date: 05-1998

DOI: 10.1016/S0377-0273(98)00004-3

Multiple canopy opening effects on recruited saplings in a typhoon‐disturbed tropical rainforest, Taiwan

Publisher: Wiley

Date: 12-01-2023

DOI: 10.1111/BTP.13193

Abstract: To investigate the influence of multiple canopy openings on the composition and ersity of recruited saplings in a forest frequently disturbed by typhoons. We conducted tree‐by‐tree censuses (diameter at breast height ≥ 1 cm) and mapped gaps (canopy height 5 m) in 1993, 2000, 2008, and 2013 in a tropical mountain zonal foothill evergreen broad‐leaved forest in Nanjenshan Nature Reserve, Taiwan. We analyzed the composition and ersity of recruited saplings within a 2.1 ha plot (840 s ling quadrats (5 m × 5 m)) with variable numbers of canopy openings recorded during the study period. Composition of recruited saplings was dissimilar between quadrats that stayed opened and those that stayed closed throughout the study period (pairwise similarity estimates C 02 = 0.52, 95% CI = 0.38–0.66). The quadrats under closed canopy had high ersity when weighting rare species (species richness), whereas quadrats with one or two gap opening records during the past 20 years had high ersity when weighting the abundance of species. Although canopy openings provided establishment conditions for saplings of some shade‐intolerant species, due to the nature of small gap size, such habitats do not favor the dominance of shade‐intolerant species. Even in a frequently disturbed forest, species composition and richness of recruited saplings were mainly contributed by shade‐tolerant species. Although multiple canopy openings facilitated the establishment of shade‐intolerant species, species ersity in the study forests is possibly mainly mediated by coexistence mechanisms of those shade‐tolerant species rather than light‐gap‐related species strategies.

Volcanic Setting of the Bajo de la Alumbrera Porphyry Cu-Au Deposit, Farallon Negro Volcanics, Northwest Argentina

Publisher: Society of Economic Geologists

Date: 2006

DOI: 10.2113/GSECONGEO.101.1.71

U–Pb zircon geochronology of Late Devonian to Early Carboniferous extension‐related silicic volcanism in the northern New England Fold Belt*

Publisher: Wiley

Date: 10-2004

DOI: 10.1111/J.1400-0952.2004.01079.X

Petrology and Geochemistry of the Bandas del Sur Formation, Las Cañadas Edifice, Tenerife (Canary Islands)

Publisher: Oxford University Press (OUP)

Date: 10-2002

DOI: 10.1093/PETROLOGY/43.10.1815

Divergent double subduction:Tectonic and petrologic consequences: Comment and Reply

Publisher: Geological Society of America

Date: 1998

DOI: 10.1130/0091-7613(1998)026<1051:DDSTAP>2.3.CO;2

ELA-ICP-MS U?Pb zircon geochronology of regional volcanism hosting the Bajo de la Alumbrera Cu?Au deposit: implications for porphyry-related mineralization

Publisher: Springer Science and Business Media LLC

Date: 2004

DOI: 10.1007/S00126-003-0381-0

Late Oligocene to middle miocene rifting and synextensional magmatism in the southwestern sierra madre occidental, Mexico: The beginning of the Gulf of California rift

Publisher: Geological Society of America

Date: 2013

DOI: 10.1130/GES00925.1

Cenozoic magmatism and extension in western Mexico: Linking the Sierra Madre Occidental silicic large igneous province and the Comondú Group with the Gulf of California rift

Publisher: Elsevier BV

Date: 08-2018

DOI: 10.1016/J.EARSCIREV.2017.04.006

Large igneous provinces and silicic large igneous provinces: Progress in our understanding over the last 25 years

Publisher: Geological Society of America

Date: 25-04-2013

DOI: 10.1130/B30820.1

Integrating ⁴⁰Ar-³⁹Ar, ⁸⁷Rb-⁸⁷Sr and ¹⁴⁷Sm-¹⁴³Nd geochronology of authigenic illite to evaluate tectonic reactivation in an intraplate setting, central Australia

Publisher: Elsevier BV

Date: 06-2014

DOI: 10.1016/J.GCA.2014.02.048

Rapid, long-distance dispersal by pumice rafting

Publisher: Public Library of Science (PLoS)

Date: 18-07-2012

DOI: 10.1371/JOURNAL.PONE.0040583

Yarrol terrane of the northern New England Fold Belt: Forearc or backarc?

Publisher: Informa UK Limited

Date: 04-2001

DOI: 10.1046/J.1440-0952.2001.00861.X

Pulling apart the Mid to Late Cenozoic magmatic record of the Gulf of California: is there a Comondú Arc?

Publisher: Geological Society of London

Date: 31-07-2013

DOI: 10.1144/SP385.8

Geochronology and geochemistry of the Devonian Gumbardo Formation (Adavale Basin): evidence for cratonisation of the Central Thomson Orogen by the Early Devonian

Publisher: Informa UK Limited

Date: 04-11-2018

DOI: 10.1080/08120099.2018.1529704

Magmatism and tectonics of the Sierra Madre Occidental and its relation with the evolution of the western margin of North America

Publisher: Geological Society of America

Date: 2007

DOI: 10.1130/2007.2422(01)

Paleomagnetic data support Early Permian age for the Abor Volcanics in the lower Siang Valley, NE India: Significance for Gondwana-related break-up models

Publisher: Elsevier BV

Date: 05-2012

DOI: 10.1016/J.JSEAES.2012.01.007

Apparent conflicting Roadian–Wordian (middle Permian) CA-IDTIMS and palynology ages from the Canning Basin, Western Australia

Publisher: Informa UK Limited

Date: 13-09-2017

DOI: 10.1080/08120099.2017.1365586

Pre-eruptive uplift in the Emeishan?

Publisher: Springer Science and Business Media LLC

Date: 08-2009

DOI: 10.1038/NGEO600

Pumice rafting and faunal dispersion during 2001–2002 in the Southwest Pacific: record of a dacitic submarine explosive eruption from Tonga

Publisher: Elsevier BV

Date: 10-2004

DOI: 10.1016/J.EPSL.2004.08.009

The Whitsunday Volcanic Province, Central Queensland, Australia: lithological and stratigraphic investigations of a silicic-dominated large igneous province

Publisher: Elsevier BV

Date: 06-2000

DOI: 10.1016/S0377-0273(00)00157-8

Stratigraphy of the Bandas del Sur Formation: an extracaldera record of Quaternary phonolitic explosive eruptions from the Las Cañadas edifice, Tenerife (Canary Islands)

Publisher: Cambridge University Press (CUP)

Date: 09-1998

DOI: 10.1017/S0016756897001258

Abstract: Explosive volcanism has dominated the large phonolitic shield volcano of Tenerife, the Las Cañadas edifice, for the last 1.5 m.y. Pyroclastic deposits of the Bandas del Sur Formation are exposed along the southern flanks, and record the last two of at least three long-term cycles of caldera-forming explosive eruptions. Each cycle began with flank fissure eruptions of alkali basalt lava, followed by minor eruptions of basanite to phonotephrite lavas. Minor phonotephritic to phonolitic lava effusions also occurred on the flanks of the edifice during the latter stages of the second explosive cycle. Non-welded plinian fall deposits and ignimbrites are the dominant explosive products preserved on the southern flanks. Of these, a significant volume has been dispersed offshore. Many pyroclastic units of the second explosive cycle exhibit compositional zonation. Banded pumice occurs in most units of the third (youngest) explosive cycle, and ignimbrites typically contain mixed phenocryst assemblages, indicating the role of magma mixing/mingling prior to eruption. At least four major eruptions of the third cycle began with phreatomagmatic activity, producing lithic-poor, accretionary lapilli-bearing fallout and/or surge deposits. The repeated, brief phase of phreatomagmatism at the onset of these eruptions is interpreted as reflecting an exhaustive water supply, probably a small caldera lake that was periodically established during the third cycle. Accidental syenite becomes an increasingly important lithic clast type in ignimbrites up-sequence, and is interpreted as recording the progressive development of a plutonic complex beneath the summit caldera. Successive eruptions during each explosive cycle increased in volume, with the largest eruption occurring at the end of the cycle. More than ten major explosive eruptions vented moderately large volumes (1−[ges ]10 km 3 ) of phonolitic magma during the last two cycles. Culminating each explosive cycle was the emplacement of relatively large volume ( −10 km 3 ) ignimbrites with coarse, vent-derived lithic breccias, interpreted to record a major phase of caldera collapse. In the extracaldera record, explosive cycles are separated by ∼0.2 m.y. periods of non-explosive activity. Repose periods were characterized by erosion, remobilization of pyroclastic deposits by discharge events, and pedogenesis. The current period of non-explosive activity is characterized by the construction of the Teide-Pico Viejo stratovolcanic complex within the summit caldera. This suggests that eruptive hiatuses in the extracaldera record may reflect effusive activity and stratovolcano or shield-building phases within the summit caldera. Alternating effusive and explosive cycles have thus been important in the volcanic evolution of the Las Cañadas edifice.

Large-diameter trees buffer monsoonal changes to tree biomass over two decades

Publisher: Springer Science and Business Media LLC

Date: 25-10-2023

DOI: 10.1007/S11258-023-01360-Y

Use and abuse of zircon-based thermometers: A critical review and a recommended approach to identify antecrystic zircons

Publisher: Elsevier BV

Date: 2018

DOI: 10.1016/J.EARSCIREV.2017.08.011

Petrology and Geochemistry of the Quaternary Caldera-forming, Phonolitic Granadilla Eruption, Tenerife (Canary Islands)

Publisher: Oxford University Press (OUP)

Date: 09-04-2006

DOI: 10.1093/PETROLOGY/EGL020

The Quaternary pyroclastic succession of southeast Tenerife, Canary Islands: explosive eruptions, related caldera subsidence, and sector collapse

Publisher: Cambridge University Press (CUP)

Date: 05-2003

DOI: 10.1017/S0016756802007252

Abstract: A much-revised Quaternary stratigraphy is presented for ignimbrites and pumice fall deposits of the Bandas del Sur, in southern Tenerife. New 40 Ar/ 39 Ar data obtained for the Arico, Granadilla, Fasnia, Poris, La Caleta and Abrigo formations are presented, allowing correlation with previously dated offshore marine ashfall layers and volcaniclastic sediments. We also provide a minimum age of 287±7 ka for a major sector collapse event at the Güimar valley. The Bandas del Sur succession includes more than seven widespread ignimbrite sheets that have similar characteristics, including widespread basal Plinian layers, predominantly phonolite composition, ignimbrites with similar extensive geographic distributions, thin condensed veneers with abundant diffuse bedding and complex lateral and vertical grading patterns, lateral gradations into localized massive facies within palaeo-wadis, and widespread lithic breccia layers that probably record caldera-forming eruptions. Each ignimbrite sheet records substantial bypassing of pyroclastic material into the ocean. The succession indicates that Las Cañadas volcano underwent a series of major explosive eruptions, each starting with a Plinian phase followed by emplacement of ignimbrites and thin ash layers, some of co-ignimbrite origin. Several of the ignimbrite sheets are compositionally zoned and contain subordinate mafic pumices and banded pumices indicative of magma mingling immediately prior to eruption. Because passage of each pyroclastic density current was characterized by phases of non-deposition and erosion, the entire course of each eruption is incompletely recorded at any one location, accounting for some previously perceived differences between the units. Because each current passed into the ocean, estimating eruption volumes is virtually impossible. Nevertheless, the consistent widespread distributions and the presence of lithic breccias within most of the ignimbrite sheets suggest that at least seven caldera collapse eruptions are recorded in the Bandas del Sur succession and probably formed a complex, nested collapse structure. Detailed field relationships show that extensive ignimbrite sheets (e.g. the Arico, Poris and La Caleta formations) relate to previously unrecognized caldera collapse events. We envisage that the evolution of the nested Las Cañadas caldera is more complex than previously thought and involved a protracted history of successive ignimbrite-related caldera collapse events, and large sector collapse events, interspersed with edifice-building phases.

Timing of rifting in the southern Gulf of California and its conjugate margins: Insights from the plutonic record

Publisher: Geological Society of America

Date: 04-12-2014

DOI: 10.1130/B31008.1

New Insights into Crustal Contributions to Large-volume Rhyolite Generation in the Mid-Tertiary Sierra Madre Occidental Province, Mexico, Revealed by U–Pb Geochronology

Publisher: Oxford University Press (OUP)

Date: 26-11-2007

DOI: 10.1093/PETROLOGY/EGM070

From intrabasinal volcanism to far-field tectonics: causes of abrupt shifts in sediment provenance in the Devonian–Carboniferous Drummond Basin, Queensland

Publisher: Informa UK Limited

Date: 30-01-2019

DOI: 10.1080/08120099.2018.1552192

Havre 2012 pink pumice is evidence of a short-lived, deep-sea, magnetite nanolite-driven explosive eruption

Publisher: Springer Science and Business Media LLC

Date: 03-02-2022

DOI: 10.1038/S43247-022-00355-3

Abstract: The Havre 2012 deep-sea rhyolite eruption went unobserved and was initially recognised from a massive pumice raft at the sea surface. Havre pumices are predominantly white or grey, however pink pumice is common in the raft. In subaerial explosive eruptions, pink pumice is understood to result from high-temperature atmospheric iron-oxidation. The presence of pink pumice questions the effusive eruption model for the Havre raft. Here we report results from X-ray Absorption Near Edge Structure spectroscopy, magnetic measurements, TEM imaging and glass chemistry that collectively show the colour results from increasing amounts of magnetite nanolites in the raft pumice glass oxidizing to hematite. This suggests a short-lived but powerful explosive eruption phase penetrated the water column allowing hot pyroclasts to oxidise in air. Our results therefore challenge the known depth limits for explosive eruptions in the marine realm and suggest pink pumice can be an indicator of magnetite nanolite-driven explosive eruptions.

Age and area predict patterns of species richness in pumice rafts contingent on oceanic climatic zone encountered

Publisher: Wiley

Date: 24-04-2018

DOI: 10.1002/ECE3.3980

Re-evaluating plume-induced uplift in the Emeishan large igneous province

Publisher: Springer Science and Business Media LLC

Date: 24-08-2008

DOI: 10.1038/NGEO281

The largest volcanic eruptions on Earth

Publisher: Elsevier BV

Date: 10-2010

DOI: 10.1016/J.EARSCIREV.2010.07.001

National Chiayi University

Location: Taiwan, Province of China

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National Taiwan University

Location: Taiwan, Province of China

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Queensland University Of Technology

Location: Australia

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Monash University

Location: Australia

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Ultra-high Resolution And Advanced Analytical Scanning Electron Microscope Facility

Start Date: 2011

End Date: 2011

Funder: Australian Research Council

Linkage Projects - Grant ID: LP140100874

Start Date: 05-2015

End Date: 06-2020

Amount: $460,000.00

Funder: Australian Research Council

Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100028

Start Date: 05-2011

End Date: 05-2012

Amount: $720,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP130102028

Start Date: 06-2013

End Date: 12-2018

Amount: $230,000.00

Funder: Australian Research Council