Abstract:

This dataset reports measurement of sediment sample wet weight (g) and dry weight (g) for core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. Bulk density is the dry weight per sampling volume expressed as g/cm3. The dataset also reports percent porewater. The sediment cores were collected onboard the R/V Weatherbird II cruises WB-0813 and WB-1405 in the northern Gulf of Mexico from 2013-08-15 to 2013-09-27. Chief scientists for these cruises were Dr. Steve Murawski and Dr. David Hollander for WB-0813, and Oscar Garcia for WB-1405. The objective of cruise WB-0813 was to create Gulf-wide baselines for sediment and fish and cruise WB-1405 was dedicated for benthic ecology.

Suggested Citation:

Brooks, Gregg R., and Larson, Rebekka A.. 2019. Bulk density and porewater data collected onboard R/V Weatherbird II cruises WB-0813 and WB-1405 in the northern Gulf of Mexico from 2013-08-15 to 2013-09-27. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-pb9j-t538

Purpose:

Measure bulk density and porewater data from sediment cores collected in the northern Gulf of Mexico.

Data Parameters and Units:

Latitude and longitude of core site (decimal degrees), water depth of core site (m), core collection date (mm/dd/yyyy), site identification (ID), core identification (id), top depth of interval (mm), bottom depth of interval (mm), average depth of interval (mm), sediment wet weight (g), sediment dry weight (g), sample volume (cm3), bulk density (g/cm3), porewater (%), laboratory/facility analysis was performed at. Bulk density was calculated using sediment dry weight (g) and sample volume (cm3). Blank cell denotes analysis not performed for the interval, no data generated. The dataset includes cruise documentation.

Methods:

Bulk density was calculated using sediment dry weight (g) and sample volume (cm3). Percent porewater (by weight) was calculated using sample wet weight (g) and sample dry weight (g).

Instruments:

Ocean Instrument MC-800 Multicore, Shipek Grab.

Individual Files: