...Andrew J. Martin; John W. Jamieson; Cornel E.J. de Ronde; Susan E. Humphris; Stephen Roberts; Christopher J. MacLeod; Yuanfeng Cai; Chao Zhang; Lucy E.M. Schlicht; Tatsuo Nozaki Abstract The hydrothermally active Brothers volcano on the Kermadec arc, New Zealand, hosts two geochemically distinct...

...R. W. Embley; C. E. J. de Ronde; S. G. Merle; B. Davy; F. Caratori Tontini Abstract A survey of the Brothers caldera volcano (Kermadec arc) with the autonomous underwater vehicle ABE has revealed new details of the morphology and structure of this submarine frontal arc caldera and the geologic...

...: http://dx.doi.org/10.1111/j.1365-246X.2011.05253.x . GJINEA 0956-540X Caratori Tontini F. Tivey M. A. de Ronde C. E. J. Humphris S. E. , 2019 , Heat flow and near-seafloor magnetic anomalies highlight hydrothermal circulation at Brothers volcano caldera, southern Kermadec arc...

..., Kermadec arc, provide unprecedented, in situ views of volcanic facies and fluid pathways in an actively forming volcanogenic massive sulfide (VMS) ore deposit. Brothers volcano is a submarine caldera with extensive sea-floor hydrothermal alteration. Downhole data were collected in two holes: Hole U1530A...

...Hyun Joo Lee; Jung Hun Seo; Cornel E.J. de Ronde; Christoph A. Heinrich Abstract Brothers volcano is a submarine dacitic caldera located on the southern Kermadec arc. It is host to the NW Caldera vent field (Site U1530 and Hole U1530A), which locally discharges more focused, metal-rich fluids...

... hydrothermal systems evolve and how they are related to water-rock systems, we can better start to comprehend subsurface processes and the implications for advancement in fluid chemistry over time, mineralization and mining potential, and implications for volcanic hazards. The Kermadec arc, formed...

... forming. In 2018, International Ocean Discovery Program (IODP) Expedition 376 recovered drill cores from an active hydrothermal field at Brothers volcano, in the Kermadec arc. These provide insight into the formation of mineral deposits along arcs, the structure and permeability of hydrothermal sites...

... volcano in the Kermadec arc. We report rare earth element (REE) abundances and ratios for altered volcanic material recovered from three holes to assess mobility and partitioning under the different conditions of fluid-rock reactions. We combine these with loss on ignition (LOI) and X-ray diffraction (XRD...

... 10 2022 © 2023 Society of Economic Geologists 2023 Society of Economic Geologists Gold Open Access: This paper is published under the terms of the CC-BY 3.0 license. Brothers submarine volcano, located along the intraoceanic Kermadec arc about 400 km northeast of New Zealand...

...Philipp A. Brandl; Maxim Portnyagin; Heiko Zeppenfeld; Frank J. Tepley, III; Cornel E.J. de Ronde; Christian Timm; Folkmar Hauff; Dieter Garbe-Schönberg; Romain Bousquet Abstract International Ocean Discovery Program (IODP) Expedition 376 cored the submarine Brothers volcano of the Kermadec arc...

... the Tonga-Kermadec arc (southwest Pacific Ocean) and show that Ba isotopes distinguish between fluid and melt derived from different subducted components. This provides fresh constraints on the debate. Remarkable along-strike Ba isotope variations were observed and are best explained by contributions from...

..., Kermadec arc. The maps cover 84- to 136-mm 2 cross sections of the inner chimney walls and document the distribution of Fe, Cu, Zn, As, Se, Sr, Pb ± Ga, Au, Bi, and U. Comparative element maps were generated by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) at a lower resolution...

...C.E.J. de Ronde; S.L. Walker; R.G. Ditchburn; F. Caratori Tontini; M.D. Hannington; S.G. Merle; C. Timm; M.R. Handler; R.J. Wysoczanski; V.M. Dekov; G.D. Kamenov; E.T. Baker; R.W. Embley; J.E. Lupton; P. Stoffers Abstract Clark volcano of the Kermadec arc, northeast of New Zealand, is a large...

...C. E. J. de Ronde; D. A. Butterfield; M. I. Leybourne Additional information on research expeditions to the Kermadec arc can be found on the following web sites and You-Tube videos: http://www.oceanexplorer.noaa.gov/explorations/05fire/welcome.html http://www.oceanexplorer.noaa.gov...

..., Mo, Bi, Sb, and As that relate to the composition of associated (host) magmatic rocks. Here, we combine new and published trace element data for lavas recovered from 15 volcanic centers along the Kermadec arc. The data show that mafic back-arc and arc-front lavas are enriched in most...

... drive their formation is critical for understanding where, how, and why VMS deposits form. The southern Kermadec arc volcanic front is known to be highly hydrothermally active and host to at least three VMS deposits, whereas the associated back -arc system is apparently hydrothermally inactive, although...

... on the southern Kermadec arc. Sensors on ABE simultaneously measured hydrothermal plume anomalies in temperature, light backscattering (particle concentration), and oxidation-reduction potential (dissolved reduced species) every 2 to 3 m along track. Local maxima in these tracers confirmed known sites...

... volcano, southern Kermadec arc, New Zealand. By comparing the results for different permeability scenarios, we can show that the location of venting on the inner slopes of the caldera (e.g., at the NW caldera site) requires the presence of higher permeability faults. Venting at the top of the Upper cone...

...H. A. Berkenbosch; C.E.J. de Ronde; J. B. Gemmell; A. W. McNeill; K. Goemann Abstract Brothers caldera volcano is a submarine volcano of dacitic composition, located on the Kermadec arc, New Zealand. It hosts the NW caldera vent field perched on the steep slope of the caldera walls and includes...

...; Christian Timm; Ian J. Graham; Ian C. Wright Abstract The Monowai volcanic center is located at the midpoint along the ∼2,530-km-long Tonga-Kermadec arc system. The Monowai volcanic center is comprised of a large elongate caldera (Monowai caldera area ∼35 km 2 ; depth to caldera floor 1,590 m), which has...