Dataset: Sediment grain size data

Name: Sediment grain size data collected from a shallow subterranean estuary (STE) in Gloucester Point, Virginia USA, from 2018 to 2019
Published: 2023-05-01
Keywords: marine sediment, grain size, Subterranean Estuary, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.894323.1

Spatial Extent: N:37.2489 E:-76.5053 S:37.2489 W:-76.5053

Temporal Extent: 2018-07-10 - 2019-01-16

Project:

Collaborative Research: Cryptic nitrogen cycling in the anoxic subterranean estuary (Subsurface cryptic N cycle)

Principal Investigator:

Bongkeun Song (Virginia Institute of Marine Science, VIMS)

Co-Principal Investigator:

Iris C. Anderson (Virginia Institute of Marine Science, VIMS)

Craig Tobias (University of Connecticut, UConn)

Student:

Stephanie J. Wilson (Virginia Institute of Marine Science, VIMS)

Contact:

Stephanie J. Wilson (Smithsonian Environmental Research Center, SERC)

BCO-DMO Data Manager:

Taylor Heyl (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2023-05-01

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Sediment grain size data collected from a shallow subterranean estuary (STE) in Gloucester Point, Virginia USA, from 2018 to 2019

Abstract:

These data were collected from a sandy subterranean estuary (STE) located in Gloucester Point, Virginia, USA, which is located along the York River Estuary, a tributary of the Chesapeake Bay. Sediments were measured for grain size analyses between 2018 and 2019.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2023-05-01	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.894323.1	2023-05-10

Methods & Sampling

The grain size of sediment samples was collected from a sandy subterranean estuary (STE) located in Gloucester Point (GP), Virginia, USA. Sediments were measured for grain size with a laser diffraction particle size analyzer (LDPSA, model: LS 13 320, Beckman Coulter). Particle size distributions of GP-STE sediment were determined with an LDPSA using the Fraunhofer Theory. Samples were subsampled from sediment vibracores collected at the GP-STE in July 2018 and replicate samples (0 centimeters, 50 centimeters, and 100 centimeters) from the January 2019 core. The data output produced by the LDPSA corresponds to the Wentworth scale range of sediment grain size categories. Samples were prepped with 10 percent (%) Calgon solution prior to analysis.

Data Processing Description

BCO-DMO Processing Description:
- Split the column “Location” into “Latitude” and “Longitude”
- Converted the “Date” column to %Y-%m-%d to comply with BCO-DMO standards
- Longitude values were converted to decimal degrees where negative values denote the Southern hemisphere

Data Files

File
crypticn_sediment_grainsize-1.csv (Comma Separated Values (.csv), 1.91 KB) MD5:cc5665fc586862c5357f419064975364 Primary data file for dataset 894323, version 1.

Supplemental Files

File
Wentworth grain size chart filename: Wentworth_scale_chart.pdf (Portable Document Format (.pdf), 69.93 KB) MD5:ab666be7627bc1f6686ab18356266b24 Wentworth grain size chart from United States Geological Survey Open-File Report 2006-1195.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1658135

Deployments

None available yet

Instruments

Laser Diffraction Particle Size Analyzer

Supplied Name: LDPSA, model: LS 13 320, Beckman Coulter

Supplied Description:

Instrument Type

Generic Name: Laser Diffraction Particle Size Analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/150/

Generic Description:

Laser diffraction is particle sizing technique for materials ranging from hundreds of nanometers up to several millimeters in size. Laser diffraction measures particle size distributions by measuring the angular variation in intensity of light scattered as a laser beam passes through a dispersed particulate sample. One example is the Beckman Coulter LS200.

Vibracore

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Vibracore

Generic Description:

Vibracoring is a sediment sampling technology to obtain undisturbed cores of unconsolidated, sediment in saturated or nearly saturated conditions by driving sampling tubes with a high-frequency-low-amplitude vibrating device. During sediment coring, the high-frequency vibration transfers the energy to the sediment and aids in the liquefaction of the surrounding sediment. It greatly reduces the friction between the core tube and sediment and eases the core tube to penetrate into the sediment layer. Comparing to non-vibratory coring devices, such as box cores, gravity cores, and piston cores, vibracore has higher core sample recoveries. Vibracorers are effective in both shallow and deep environments. They retrieve core samples with different lengths depending on sediment lithology.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Season_Sampled	Season sediment vibracore was collected	unitless	season
Latitude	Latitude of coring location	decimal degrees	lat
Longitude	Longitude of coring location	decimal degrees	lon
Date	Date of sampling Format: %Y-%m-%d	unitless	date
Depth_Interval	Depth section of the sediment core used for analysis	centimeters (cm)	depth_core
Mean_Grain_Size	Mean sediment grain size	micrometers (um)	mean
Percent_Sand	Percent of sediment sample that is sand	percent (%)	sand
Percent_Mud	Percent of sediment sample that is mud	percent (%)	clay
Percent_Very_Coarse_Sand	Percent of sediment sample that is very coarse sand	percent (%)	sand
Percent_Coarse_Sand	Percent of sediment sample that is coarse sand	percent (%)	sand
Percent_Medium_Sand	Percent of sediment sample that is medium sand	percent (%)	sand
Percent_Fine_Sand	Percent of sediment sample that is fine sand	percent (%)	sand
Percent_Very_Fine_Sand	Percent of sediment sample that isvery fine sand	percent (%)	sand
Percent_Silt	Percent of sediment sample that is silt	percent (%)	silt
Percent_Clay	Percent of sediment sample that is clay	percent (%)	clay
Median_Grain_Size	Median sediment grain size	micrometers (um)	sed_grain_size
d10	Effective size that directly corresponds to the percentage by weight of grains that equal to 10% on the Wentworth grain-size diagram	millimeters (mm)	sed_grain_size
d50	Effective size that directly corresponds to the percentage by weight of grains that equal to 50% on the Wentworth grain-size diagram	millimeters (mm)	sed_grain_size

Database

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Dataset: Sediment grain size data