Economic geology : bulletin of the society of economic geologists, Vol. 107 N° 8. Economic geology: bulletin of the society of economic geologists - Décembre 2012
| Titre : | Economic geology : bulletin of the society of economic geologists, Vol. 107 N° 8. Economic geology: bulletin of the society of economic geologists - Décembre 2012 |
| Type de document : | Bulletin |
| Paru le : | 02/06/2013 |
Dépouillements
Article : texte imprimé
Cornel E. J. de Ronde, Auteur ;
D. A. Butterfield, Auteur ;
M. I. Leybourne, Auteur
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The Kermadec intraoceanic arc marks the southernmost section of the Pacific Ring of Fire in the western Pacific region, a chain of mostly underwater volcanoes that stretches from north of Japan southward to New Zealand. The Kermadec arc, strikin[...]
Article : texte imprimé
Christian Timm, Auteur ;
Cornel E. J. de Ronde, Auteur
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Volcanogenic massive sulfide (VMS) deposits typically contain significant proportions of magma-derived chalcophile (Cu affinity) and siderophile (Fe affinity) elements such as Au, Cu, V, Zn, Mo, Bi, Sb, and As that relate to the composition of a[...]
Article : texte imprimé
R. J. Wysoczanski, Auteur ;
M. R. Handler, Auteur ;
C. I. Schipper, Auteur
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Deciphering the ultimate source of chalcophile metals (e.g., Cu, Zn, Pb) in volcanogenic massive sulfide (VMS) deposits and the volatiles that help drive their formation is critical for understanding where, how, and why VMS deposits form. The so[...]
Article : texte imprimé
R. W. Embley, Auteur ;
Cornel E. J. de Ronde, Auteur ;
S. G. Merle, Auteur
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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 setting of its hydrothermal activi[...]
Article : texte imprimé
F. Caratori Tontini, Auteur ;
B. Davy, Auteur ;
Cornel E. J. de Ronde, Auteur
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Near-bottom magnetic anomaly data have been acquired using autonomous underwater vehicles at Brothers volcano, southern Kermadec arc, New Zealand. Crustal magnetization for the study area was obtained by inverting the magnetic data and shows a s[...]
Article : texte imprimé
Edward T. Baker, Auteur ;
Sharon L. Walker, Auteur ;
Robert W. Embley, Auteur
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Submarine edifices with caldera summits are common along volcanic arcs and much more likely than simple cones to host hydrothermal venting. Compared with cones, however, locating all vent field locations on a caldera's complex bathymetry is a da[...]
Article : texte imprimé
Gillian Gruen, Auteur ;
Philipp Weis, Auteur ;
Thomas Driesner, Auteur
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Numerical, multiphase pure-water simulations were performed to study the first-order geologic and physical parameters controlling the style and distribution of hydrothermal venting at Brothers volcano, southern Kermadec arc, New Zealand. By comp[...]
Article : texte imprimé
H. A. Berkenbosch, Auteur ;
Cornel E. J. de Ronde, Auteur ;
J. B. Gemmell, Auteur
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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 numerous, active, high-temperature [...]
Article : texte imprimé
Robert G. Ditchburn, Auteur ;
Cornel E. J. de Ronde, Auteur ;
Bernard J. Barry, Auteur
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Radiometric dating methods using 238U and 232Th decay chain isotopes have been developed and applied to volcanogenic massive sulfide (VMS) samples, most of which were collected from hydrothermal sites at volcanoes along the Kermadec and Mariana [...]
Article : texte imprimé
Matthew I. Leybourne, Auteur ;
Cornel E. J. de Ronde, Auteur ;
Richard J. Wysoczanski, Auteur
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Sea-floor imagery, volcanic rock, massive sulfide, and hydrothermal plume samples (δ3He, pH, dissolved Fe and Mn, and particulate chemistry) have been collected from the Rumble II West volcano, southern Kermadec arc, New Zealand. Rumble II West [...]
Article : texte imprimé
Matthew I. Leybourne, Auteur ;
Ulrich Schwarz-Schampera, Auteur ;
Cornel E. J. de Ronde, Auteur
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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 km2; depth to caldera floor 1,590 m), which[...]
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