Dataset: Palau Lake Core Properties
Deployment: Palau_lakes

Core Logger Physical Properties for Palau Lakes Sediment Cores

Principal Investigator:

Julian P. Sachs (University of Washington, UW)

Co-Principal Investigator:

Michael N. Dawson (University of California-Merced, UC Merced)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Do Parallel Patterns Arise from Parallel Processes? (PaPaPro)

Current State:

Final no updates expected

Data URL:

https://www.bco-dmo.org/dataset-deployment/771986/data

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Description

Methods & Sampling

Dataset acquisition description

Un-split core sections were received at the National Lacustrine Core Repository (LaCore) facility and analyzed via Geotek MSCL core logger. Gamma ray attenuation density, non-contacting electrical resistivity, p-wave velocity, and magnetic susceptibility were measured via LaCore’s standard procedures. Acoustical impedance and fractional porosity are calculated properties.

Data Processing Description

Dataset Processing Description

There has been no data processing. This is raw data output.

BCO-DMO Processing:
- Modified parameter names (replaced spaces with underscores; renamed "Lan" to "Lat");
- replaced spaces with underscores in the "Lake_Name" and "Device" columns (to allow for sorting);
- re-formatted date to yyyy-mm-dd.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1241247	NSF Division of Ocean Sciences
OCE-1241255	NSF Division of Ocean Sciences

Instruments

Multi-Sensor Core Logger

Supplied Name: MSCL-S

Supplied Description:

Multi-Sensor Core Logger (Geotek Ltd., Daventry, Northamptonshire, UK). Automated core scanning suite.

Instrument Type

Generic Name: Multi-Sensor Core Logger

Acronym: MSCL-S

Generic Description:

The Geotek Standard Multi-Sensor Core Logger (MSCL-S) is a commercially available tool for gathering both physical and chemical properties from core samples in an automated and quality controlled way. See more info from the manufracturer: https://www.geotek.co.uk/products/mscl-s/

Percussion Corer

Supplied Name: Universal Percussion Corer

Supplied Description:

Universal Percussion Corer (Aquatic Research Instruments, Hope, Indiana): Hand-operated sediment coring device.

Instrument Type

Generic Name: Percussion Corer

Generic Description:

Capable of being performed in numerous environments, percussion coring techniques are just as they sound. Similar to push coring (in which the core barrel is pushed into the sediment by hand), in percussion coring, the core is driven into the sediment by a percussion instrument such as a mallet or slide hammer.

Description from: https://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/

Piston Corer

Supplied Name: Colinvaux‐Vohnout Livingstone‐type rod‐operated piston corer

Supplied Description:

Colinvaux‐Vohnout Livingstone‐type rod‐operated piston corer (Geocore, Columbus, Ohio): Hand-operated sediment coring device.

Instrument Type

Generic Name: Piston Corer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/51/

Generic Description:

The piston corer is a type of bottom sediment sampling device. A long, heavy tube is plunged into the seafloor to extract samples of mud sediment. A piston corer uses a "free fall" of the coring rig to achieve a greater initial force on impact than gravity coring. A sliding piston inside the core barrel reduces inside wall friction with the sediment and helps to evacuate displaced water from the top of the corer. A piston corer is capable of extracting core samples up to 90 feet in length.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Lake_Name	Lake name	unitless	site
Core	Core name	unitless	sample
Lat	Latitude	degrees North	lat
Lon	Longitude	degrees East	lon
Device	Type of core	unitless	instrument
Date_collected	Date collected; format: yyyy-mm-dd	unitless	date
Logger_depth	Logger track position	meters (m)	depth_core
LacCore_Section_ID	LaCore section code	unitless	sample
Section_Depth	Depth in section	centimeters (cm)	depth_core
MSCL_Sediment_Thickness	Thickness of cross section	centimeters (cm)	sed_thickness
MSCL_pWave_Amplitude	Ultrasonic P wave amplitude		wave_stats
MSCL_pWave_Velocity	Ultrasonic P wave velocity	meters per second (m s-1)	wave_stats
MSCL_Gamma_Density	Sediment wet density via GRA	grams per cubic centimeter (g cm-3)	density
MSCL_MS_Loop	Magnetic susceptibility	SI * 10-5	Magnetic_susceptibility
MSCL_Impedance	Calculated acoustic impedance	meters per second (m/s) times grams per cubic centimeter (g/cm^3) (or: m g s-1 cm-3)	no_bcodmo_term
MSCL_Fractional_Porosity	Acoustic-calculated porosity		porosity
MSCL_Electrical_Resistivity	Calculated induced-current resistivity	Ohm-meters (Ohm*m)	Sediment_resistivity
MSCL_Temperature_Logging_Room	Temperature during logging	degress Celsius	temp
Original_Section_ID	Field ID; original core section name	unitless	sample

Database

Contribute Data

Dataset: Palau Lake Core Properties
Deployment: Palau_lakes

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Palau Lake Core PropertiesDeployment: Palau_lakes

Dataset acquisition description

Dataset Processing Description

Dataset: Palau Lake Core Properties
Deployment: Palau_lakes