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Summary for Field Activity Number 2004-016-FA

Alternate Leg ID: MH44-04

Area of Operations: Massachusetts Bay, Massachusetts, United States, North America, North Atlantic

Dates: February 05, 2004 to February 06, 2004

Objectives: Exchange moorings at the Boston B Buoy. Recover moorings at the site off Scituate. On the second day, collect sediment cores and sediment-oxygen profiles at Stations 2 and 3.

Type of Activity: Sampling
Mooring exchange
oxygen profiles in sediment

Information to be derived: Time series data
Samples and Chemical Analysis
Grain size analysis
Suspended Sediment Concentrations

Summary: Moorings deployed: 2 (#755 and 756 both recovered FA 04026 MARCUS HANNA May 19-20, 2004). Moorings recovered: 2 (#716 and 718 both deployed FA 03043 MARCUS HANNA Sep. 24-25, 2003). At Station A (near the Boston B Buoy) the subsurface mooring was exchanged and a refurbished large tripod was deployed. The tripod deployed in September did not come up. At Scituate, the NOPP subsurface mooring #734 (deployed FA 03057 CHRISTOPHER ANDREW Aug. 27, 2003) was recovered. The tripod did not come up. Divers will be scheduled to help recover instruments at both locations in the near future. Coring was successful at both Stations 3 and 2. One core was given to Joseph Smith at U. Mass. Boston for analysis of Iodine 131 and others to our WHOI colleagues for analysis of pore water. Other cores were returned to USGS for X-rays and analysis of texture, metals, Th234, etc.

USGS Project Number: 2921-0EL16 - Project Description

Contact: Mike Bothner (

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Map of field activity boundary.

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