@article {Tontini2016,
	title = {{Crustal magnetization and the subseafloor structure of the ASHES vent field, Axial Seamount, Juan de Fuca Ridge: Implications for the investigation of hydrothermal sites}},
	journal = {Geophysical Research Letters},
	volume = {43},
	year = {2016},
	pages = {6205{\textendash}6211},
	abstract = {High-resolution geophysical data have been collected using the Autonomous Underwater Vehicle (AUV) Sentry over the ASHES (Axial Seamount Hydrothermal Emission Study) high-temperature ({\~{}}348{\textdegree}C) vent field at Axial Seamount, on the Juan de Fuca Ridge. Multiple surveys were performed on a 3-D grid at different altitudes above the seafloor, providing an unprecedented view of magnetic data resolution as a function of altitude above the seafloor. Magnetic data derived near the seafloor show that the ASHES field is characterized by a zone of low magnetization, which can be explained by hydrothermal alteration of the host volcanic rocks. Surface manifestations of hydrothermal activity at the ASHES vent field are likely controlled by a combination of local faults and fractures and different lava morphologies near the seafloor. Three-dimensional inversion of the magnetic data provides evidence of a vertical, pipe-like upflow zone of the hydrothermal fluids with a vertical extent of {\~{}}100 m.},
	keywords = {AUV Sentry (Autonomous Underwater Vehicle)},
	doi = {10.1002/2016GL069430},
	author = {Tontini, F C and Crone, T J and de Ronde, C E J and Fornari, D J and Kinsey, J C and Mittelstaedt, E and Tivey, M K}
}
@article {Tontini2013,
	title = {{Geophysical modeling of collapse-prone zones at Rumble III seamount, southern Pacific Ocean, New Zealand}},
	journal = {Geochemistry, Geophysics, Geosystems},
	volume = {14},
	number = {10},
	year = {2013},
	pages = {4667{\textendash}4680},
	abstract = {Catastrophic collapses of submarine volcanoes have the potential to generate major tsunami, threatening many coastal populations. Recognizing the difficulties surrounding anticipations of these events, quantitative assessment of collapse-prone regions based on detailed morphological, geological, and geophysical mapping can still provide important information about the hazards associated with these collapses. Rumble III is one of the shallowest, and largest, submarine volcanoes found along the Kermadec arc, and is both volcanically and hydrothermally active. Previous surveys have delineated major collapse features at Rumble III; based on time-lapse bathymetry, dramatic changes in the volcano morphology have been shown to have occurred over the interval 2007{\textendash}2009. Furthermore, this volcano is located just \~{}300 km from the east coast of the North Island of New Zealand. Here, we present a geophysical model for Rumble III that provides the locations and sizes of potential weak regions of this volcano. Shipborne and near-seafloor geological and geophysical data collected by the AUV Sentry are used to determine the subsurface distribution of weak and unstable volcanic rocks. The resulting model provides evidence for potentially unstable areas located in the Southeastern flank of this volcano which should be included in future hazard predictions.},
	keywords = {AUV Sentry (Autonomous Underwater Vehicle)},
	issn = {1525-2027},
	doi = {10.1002/ggge.20278},
	url = {http://dx.doi.org/10.1002/ggge.20278},
	author = {Tontini, F C and de Ronde, C E J and Kinsey, J C and Soule, A and Yoerger, D and Cocchi, L}
}
