Dataset: IODP360 - Raman Spectra

Name: IODP360 - Raman spectra of a core sample taken at the Atlantis Bank
Published: 2021-11-08
Keywords: Raman spectroscopy, organic inclusions, organic filaments, deep biosphere, calcite, Fe-Mn oxide, phenylalanine, amide III, tyrosine, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.854820.1

Spatial Extent: N:-32.70567 E:57.278183 S:-32.70567 W:57.278183

Temporal Extent: 2015-11-30 - 2016-01-30

Project:

Collaborative Research: Delineating The Microbial Diversity and Cross-domain Interactions in The Uncharted Subseafloor Lower Crust Using Meta-omics and Culturing Approaches (Subseafloor Lower Crust Microbiology)

Program:

International Ocean Discovery Program (IODP)

Principal Investigator:

Virginia P. Edgcomb (Woods Hole Oceanographic Institution, WHOI)

Co-Principal Investigator:

Frieder Klein (Woods Hole Oceanographic Institution, WHOI)

Contact:

Virginia P. Edgcomb (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2021-11-08

Restricted:

Validated:

Yes

Current State:

Final no updates expected

IODP360 - Raman spectra of a core sample taken at the Atlantis Bank

Abstract:

IODP360 - Raman spectra of a core sample taken at the Atlantis Bank. Sample taken on board of the R/V JOIDES Resolution between November 30, 2015 and January 30, 2016.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2021-11-08	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.854820.1	2021-11-08

Methods & Sampling

Location: Atlantis Bank oceanic core complex (SW Indian Ridge, Indian Ocean), 182.44 m below the seafloor, sample IODP X360-21-R2, organic inclusion and Fe-Mn oxide. Depth of seafloor at sampling site is 710.2 mbsl.

For more details on core sampling and data acquisition, please see Li et al. (2020).

Data Processing Description

Organic inclusions were analyzed in a petrographic thin section.

Raman spectra were collected using a Horiba LabRam HR confocal Raman system using a blue laser with a wavelength of 473 nm, a 600 grooves/mm grating, and a 50x objective. The slit size was 150 µm and the confocal hole diameter was 1mm. This setting was chosen to minimize oxidation of the Fe-Mn oxide that was intergrown with the organic inclusions

Background was subtracted using the software code LabSpec 6

Spectral artifacts from oxidation of the Fe-Mn oxide and thin section polymer.

BCO-DMO processing notes:

Adjusted column names to comply with database requirements
Merged 3 tables into 1 (based on wavenumbers).
Added location (lat/lon) of Atlantis Bank oceanic core complex

Data Files

File
raman_spectra_all.csv (Comma Separated Values (.csv), 169.64 KB) MD5:429e4d7bff62ec662bffb2e39f1afc65 Primary data file for dataset ID 854820

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1658031

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
IODP-360	JOIDES Resolution, International Ocean Discovery Program (IODP) Expedition 360 (X360)	2015-11-30	R/V JOIDES Resolution	Henry J.B. Dick (Co-Chief Scientist) Christopher J. MacLeod (Co-Chief Scientist) Peter Blum (Project Coordinator)	data info

Instruments

Raman Microscope

Supplied Name: Horiba LabRam HR confocal Raman system

Supplied Description:

Instrument Type

Generic Name: Raman Microscope

Generic Description:

The Raman microscope is a laser-based microscopic device used to perform Raman spectroscopy. The Raman microscope begins with a standard optical microscope, and adds an excitation laser, laser rejection filters, a spectrometer or monochromator, and an optical sensitive detector such as a charge-coupled device (CCD), or photomultiplier tube, (PMT). One example is the XploRA confocal Raman microscope (information from the manufacturer).

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Shift	Raman shift	reciprocal centimeter (cm-1)	wave_stats
Intensity	Raman Intensity	arbitrary units	wave_stats
Wavenumber	Wavenumbers	reciprocal centimeter (cm-1)	wave_stats
Latitude	Latitutde of sampling location	decimal degrees	lat
Longitude	Longitude of sampling location	decimal degrees	lon

Status message

Database

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Dataset: IODP360 - Raman Spectra