Type(s)	Service>Value added services>Data acquisition
Owner	Pacific Marine Environmental Laboratory (PMEL)
Organisation	PMEL
Abstract	The CoAxial Segment had a well-documented dike injection and eruption episode in June-July of 1993 which was detected and monitored by the NOAA/Navy real-time T-wave monitoring system. Two "event plumes" were found over the axial valley centered around 46? 30'N where the T-waves had concentrated during the latter part of the episode. This site (which subsequently was known as the Flow site) became the target for dives with the Canadian remotely operated vehicle ROPOS off the NOAA R/V DISCOVERER in mid-July, 1993, during which a fresh, venting lava flow 2.5 km long was discovered, mapped and sampled. The lava flow was erupted on a ridge just north of an older volcano cone on the median volcanic ridge. Extensive venting was also found southward from the cone for about 4 km within a small graben. ROPOS recovered rock samples, some water samples, and took temperature measurements. Subsequent NSF/NOAA Alvin dives in October, 1993 (J.Delaney and R. Embley, Co-Chief Scientists) recovered several high quality vent fluid samples and left prominent markers at the sample sites. A magnetics and gravity survey was also conducted at the Flow site during the October dive series (P. Johnson, M. Tivey, and M. Holmes P.I.s).
Location	United States of America
Cross Reference(s)	http://www.pmel.noaa.gov/vents/coax/coax.html
Discipline(s)	Oceans & coasts

Name & Address	PMEL Pacific Marine Environmental Laboratory (PMEL) NOAA/PMEL 7600 Sand Point Way N.E., Bldg 3 Seattle, WA 98115 USA United States
Phone	+1 (206) 526-6239
Fax	+1 (206) 526-6815
E-mail (#at# is @)	lmccarty#at#pmel.noaa.gov
URL	http://www.pmel.noaa.gov/

Spatial Coverage & Location(s)	67.735°   33.805°   33.805°   67.735°
Event date description	01 Jan 1999 -
Language(s) of Resource	English