@article {ISI:000399660300001,
	title = {{A decade of volcanic construction and destruction at the summit of NW Rota-1 seamount: 2004-2014}},
	journal = {JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH},
	volume = {122},
	number = {3},
	year = {2017},
	month = {mar},
	pages = {1558{\textendash}1584},
	publisher = {AMER GEOPHYSICAL UNION},
	address = {2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA},
	abstract = {Arc volcanoes are important to our understanding of submarine volcanism because at some sites frequent eruptions cause them to grow and collapse on human timescales. This makes it possible to document volcanic processes. Active submarine eruptions have been observed at the summit of NW Rota-1 in the Mariana Arc. We use remotely operated vehicle videography and repeat high-resolution bathymetric surveys to construct geologic maps of the summit of NW Rota-1 in 2009 and 2010 and relate them to the geologic evolution of the summit area over a 10year period (2004-2014). We find that 2009 and 2010 were characterized by different eruptive styles, which affected the type and distribution of eruptive deposits at the summit. Year 2009 was characterized by ultraslow extrusion and autobrecciation of lava at a single eruptive vent, producing a large cone of blocky lava debris. In 2010, higher-energy explosive eruptions occurred at multiple closely spaced vents, producing a thin blanket of pebble-sized tephra overlying lava flow outcrops. A landslide that occurred between 2009 and 2010 had a major effect on lithofacies distribution by removing the debris cone and other unconsolidated deposits, revealing steep massive flow cliffs. This relatively rapid alternation between construction and destruction forms one end of a seamount growth and mass wasting spectrum. Intraplate seamounts, which tend to grow larger than arc volcanoes, experience collapse events that are orders of magnitude larger and much less frequent than those occurring at subduction zone settings. Our results highlight the interrelated cyclicity of eruptive activity and mass wasting at submarine arc volcanoes.},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {2169-9313},
	doi = {10.1002/2016JB013742},
	author = {Schnur, Susan R and Chadwick Jr., William W and Embley, Robert W and Ferrini, Vicki L and de Ronde, Cornel E J and Cashman, Katharine V and Deardorff, Nicholas D and Merle, Susan G and Dziak, Robert P and Haxel, Joe H and Matsumoto, Haru}
}
@article {ISI:000348060800012,
	title = {{Imaging of CO2 bubble plumes above an erupting submarine volcano, NW Rota-1, Mariana Arc}},
	journal = {GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS},
	volume = {15},
	number = {11},
	year = {2014},
	month = {nov},
	pages = {4325{\textendash}4342},
	type = {Article},
	abstract = {NW Rota-1 is a submarine volcano in the Mariana volcanic arc located similar to 100 km north of Guam. Underwater explosive eruptions driven by magmatic gases were first witnessed there in 2004 and continued until at least 2010. During a March 2010 expedition, visual observations documented continuous but variable eruptive activity at multiple vents at similar to 560 m depth. Some vents released CO2 bubbles passively and continuously, while others released CO2 during stronger but intermittent explosive bursts. Plumes of CO2 bubbles in the water column over the volcano were imaged by an EM122 (12 kHz) multibeam sonar system. Throughout the 2010 expedition numerous passes were made over the eruptive vents with the ship to document the temporal variability of the bubble plumes and relate them to the eruptive activity on the seafloor, as recorded by an in situ hydrophone and visual observations. Analysis of the EM122 midwater data set shows: (1) bubble plumes were present on every pass over the summit and they rose 200-400 m above the vents but dissolved before they reached the ocean surface, (2) bubble plume deflection direction and distance correlate well with ocean current direction and velocity determined from the ship{\textquoteright}s acoustic doppler current profiler, (3) bubble plume heights and volumes were variable over time and correlate with eruptive intensity as measured by the in situ hydrophone. This study shows that midwater multibeam sonar data can be used to characterize the level of eruptive activity and its temporal variability at a shallow submarine volcano with robust CO2 output.},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {1525-2027},
	doi = {10.1002/2014GC005543},
	author = {Chadwick Jr., William W and Merle, Susan G and Buck, Nathaniel J and Lavelle, J William and Resing, Joseph A and Ferrini, Vicki}
}
