ERDDAP > info > bcodmo_dataset_784337

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	[Guaymas Basin 2014 Organic Matter C:N Ratio] - Organic matter C:N ratios from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)		F   I   M	background			BCO-DMO	bcodmo_dataset_784337

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	access_formats	String	.htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt
attribute	NC_GLOBAL	acquisition_description	String	All coring operations were performed using a the piston-coring system onboard the R/V El Puma. See [http://www.buques.unam.mx](\\"http://www.buques.unam.mx\\") for additional information. Bulk sediment \u03b4\u00b9\u2075N and elemental ratio data were collected using 20mg samples in Sn capsules; organic \u03b4\u00b9\u00b3C and elemental composition data were collected using 2.5mg samples of acidified sediment in Sn capsules.\u00a0 All samples were measured by Dumas combustion performed on a Carlo Erba 1108 elemental analyzer coupled to a ThermoFinnigan Delt Plus XP isotope ratio mass spectrometer (EA-IRMS). An in-house gelatin standard, Acetanilide, and an in-house bulk sediment standard, \"Monterey Bay Sediment Standard\", were used in all runs.\u00a0 Reproducibility of an in-house matrix-matched sediment standard is <0.1\u2030 VPDB for \u03b4\u00b9\u00b3C and <0.2\u2030 AIR for \u03b4\u00b9\u2075N. Data is corrected for blank, and for drift when appropriate. Carbon and nitrogen elemental composition was estimated based on standards of known composition, for which analytical precision is determined to be better than 1 %.\u00a0
attribute	NC_GLOBAL	awards_0_award_nid	String	554980
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0939564
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=0939564
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	David L. Garrison
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50534
attribute	NC_GLOBAL	awards_1_award_nid	String	626086
attribute	NC_GLOBAL	awards_1_award_number	String	OCE-1449604
attribute	NC_GLOBAL	awards_1_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1449604
attribute	NC_GLOBAL	awards_1_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_1_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_1_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_1_program_manager	String	Dr Thomas Janecek
attribute	NC_GLOBAL	awards_1_program_manager_nid	String	511697
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Organic matter C:N ratios from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin during October 2014 PI: Andreas Teske (UNC Chapel Hill) Co-PIs: Ivano Aiello (Moss Landing Marine Laboratories) & Ana Christina Ravelo (UC Santa Cruz) Version date: 12-Dec-2019
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2019-12-12T20:33:26Z
attribute	NC_GLOBAL	date_modified	String	2020-02-11T20:03:59Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.784337.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-111.22955
attribute	NC_GLOBAL	geospatial_lat_max	double	27.86855
attribute	NC_GLOBAL	geospatial_lat_min	double	27.20745
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-111.22955
attribute	NC_GLOBAL	geospatial_lon_min	double	-111.70287
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/784337
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	784348
attribute	NC_GLOBAL	instruments_0_description	String	The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_0_supplied_name	String	ThermoFinnigan Delt Plus XP isotope ratio mass spectrometer (EA-IRMS)
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	784347
attribute	NC_GLOBAL	instruments_1_description	String	Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB01/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Elemental Analyzer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	546339
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Carlo Erba 1108 elemental analyzer
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, core, core_sample, cto, CtoN_ratio, data, dataset, date, depth, depth_cmbsf, depth_water, dmo, erddap, latitude, longitude, management, oceanography, office, preliminary, ratio, sample, time
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/784337/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/784337
attribute	NC_GLOBAL	Northernmost_Northing	double	27.86855
attribute	NC_GLOBAL	param_mapping	String	{'784337': {'date': 'flag - time', 'depth_cmbsf': 'flag - depth', 'lat': 'flag - latitude', 'long': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/784337/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of North Carolina at Chapel Hill
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UNC-Chapel Hill
attribute	NC_GLOBAL	people_0_person_name	String	Andreas P. Teske
attribute	NC_GLOBAL	people_0_person_nid	String	51412
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	Moss Landing Marine Laboratories
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	MLML
attribute	NC_GLOBAL	people_1_person_name	String	Ivano Aiello
attribute	NC_GLOBAL	people_1_person_nid	String	661682
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_affiliation	String	University of California-Santa Cruz
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	UC Santa Cruz
attribute	NC_GLOBAL	people_2_person_name	String	Ana Christina Ravelo
attribute	NC_GLOBAL	people_2_person_nid	String	661684
attribute	NC_GLOBAL	people_2_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_2_role_type	String	originator
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_3_person_nid	String	51498
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	RAPID Guaymas Basin,C-DEBI Guaymas Subseafloor Life
attribute	NC_GLOBAL	projects_0_acronym	String	RAPID Guaymas Basin
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF project abstract: The Guaymas Basin in the central Gulf of California is an active tectonic spreading center overlain with thick, organic-rich sediments. In contrast to typical deep-water, mid-ocean ridge spreading centers that have very focused magmatism and little or no sediment, magmatism in the Guaymas Basis is more broadly distributed. This broadly-distributed magmatism significantly expands the fraction of organic-rich sediments that may be subject to alteration by the magmatic heat and thus it greatly expands the range of environments that support hydrocarbon generation and microbial populations in the sediments. Recognition that magmatism is not confined to the spreading axis, but instead is distributed throughout Guaymas Basin, suggests that models for the natural sequestration of carbon, the formation of oceanic crust, and life in the subsurface in marginal rift basins should be reconsidered as this has implications for the long-term removal of atmospheric carbon dioxide (and hence potential climatic implications). The Principal Investigator of this RAPID proposal is a lead proponent on an International Ocean Discovery Program (IODP) proposal to study this system in depth through scientific ocean drilling. To properly plan this expensive IODP expedition, additional site characterization gained from sediment sampling and seismic data is required. This proposal requests funds for the Principal Investigator to participate on an already planned site survey cruise aboard the Mexican Research Vessel (RV) El Puma. The results from this cruise will provide valuable data, at an exceptionally low investment, to guide decisions about potential future scientific drilling in the Guaymas Basin. This RAPID proposal requests funds for the Principal Investigator to participate on a Mexican site survey cruise in October 2014 on RV El Puma to collect five-meter gravity cores of an extensive sediment transect across the Guaymas Basin and to integrate sequencing-based microbial community analyses of subsurface bacteria and archaea with biogechemical characterizations of these subsurface sediments. Gravity coring and microbial community analysis will target cold non-hydrothermal sediments as well as off-axis hydrothermally-influenced sediments. The gravity coring campaign and the geochemistry/microbiology studies are coordinated with heatflow measurements and extensive 2D seismic analysis and high-resolution 3D seismic mapping by other planned Mexican and German cruises. This multi-pronged strategy will deliver the additional data and complete the site characterizations that are required to properly plan a potential IODP drilling expedition by the JOIDES Resolution.
attribute	NC_GLOBAL	projects_0_end_date	String	2015-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Guaymas Basin
attribute	NC_GLOBAL	projects_0_name	String	RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin
attribute	NC_GLOBAL	projects_0_project_nid	String	626087
attribute	NC_GLOBAL	projects_0_start_date	String	2014-09
attribute	NC_GLOBAL	projects_1_acronym	String	C-DEBI Guaymas Subseafloor Life
attribute	NC_GLOBAL	projects_1_description	String	Project description from C-DEBI: The Guaymas Basin in the Gulf of California is a young marginal rift basin characterized by active seafloor spreading and rapid deposition of organic-rich sediments, characterized by extensive temperature and geochemical gradients. Deeply emplaced volcanic sills originating at the spreading center indurate and altered their surrounding sediment matrix, and shape hydrothermal circulation patterns (Einsele et al. 1980). Hydrothermal alteration and mobilization re-injects buried carbon into the biosphere (esp. as hydrocarbons and methane), a process with climate history relevance (Peter et al. 1991, Lizarralde et al. 2011). Subsurface microbial populations can intercept and process these hydrothermally generated and mobilized carbon sources (Teske et al. 2014). In support of a new IODP drilling proposal (No. 833), two Guaymas Basin site survey cruises in 2014 (RV El Puma) and 2015 (RV Sonne) are refining the 2D and 3D seismic structure of the Guaymas Basin subsurface, and collect gravity cores for up-to-date microbial and geochemical analyses. We propose combined microbiological, geochemical and sedimentological analyses to investigate subseafloor life and its environments using sediment cores that we collected on the site survey cruise with RV El Puma in October 2014. This project was funded by a C-DEBI Research Grant.
attribute	NC_GLOBAL	projects_1_end_date	String	2016-03
attribute	NC_GLOBAL	projects_1_geolocation	String	Guaymas Basin
attribute	NC_GLOBAL	projects_1_name	String	Characterizing subseafloor life and environments in the Guaymas Basin
attribute	NC_GLOBAL	projects_1_project_nid	String	661678
attribute	NC_GLOBAL	projects_1_start_date	String	2015-04
attribute	NC_GLOBAL	publisher_name	String	Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	27.20745
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Organic matter C:N ratios from sediment cores P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.
attribute	NC_GLOBAL	time_coverage_end	String	2014-10-22
attribute	NC_GLOBAL	time_coverage_start	String	2014-10-19
attribute	NC_GLOBAL	title	String	[Guaymas Basin 2014 Organic Matter C:N Ratio] - Organic matter C:N ratios from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-111.70287
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	core		String
attribute	core	bcodmo_name	String	core_id
attribute	core	description	String	Core identifier
attribute	core	long_name	String	Core
attribute	core	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	27.20745, 27.86855
attribute	latitude	axis	String	Y
attribute	latitude	bcodmo_name	String	latitude
attribute	latitude	colorBarMaximum	double	90.0
attribute	latitude	colorBarMinimum	double	-90.0
attribute	latitude	description	String	Latitude at sampling location; positive = north
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LATX/
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	_FillValue	double	NaN
attribute	longitude	actual_range	double	-111.70287, -111.22955
attribute	longitude	axis	String	X
attribute	longitude	bcodmo_name	String	longitude
attribute	longitude	colorBarMaximum	double	180.0
attribute	longitude	colorBarMinimum	double	-180.0
attribute	longitude	description	String	Longitude at sampling location; negative = west
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LONX/
attribute	longitude	source_name	String	long
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	depth_water		short
attribute	depth_water	_FillValue	short	32767
attribute	depth_water	actual_range	short	667, 1859
attribute	depth_water	bcodmo_name	String	depth_w
attribute	depth_water	colorBarMaximum	double	8000.0
attribute	depth_water	colorBarMinimum	double	-8000.0
attribute	depth_water	colorBarPalette	String	TopographyDepth
attribute	depth_water	description	String	Water depth at sampling location
attribute	depth_water	long_name	String	Depth
attribute	depth_water	standard_name	String	depth
attribute	depth_water	units	String	meters (m)
variable	core_sample		byte
attribute	core_sample	_FillValue	byte	127
attribute	core_sample	actual_range	byte	1, 28
attribute	core_sample	bcodmo_name	String	sample
attribute	core_sample	description	String	Identifier for the core sample
attribute	core_sample	long_name	String	Core Sample
attribute	core_sample	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/ACYC/
attribute	core_sample	units	String	unitless
variable	depth_cmbsf		double
attribute	depth_cmbsf	_FillValue	double	NaN
attribute	depth_cmbsf	actual_range	double	1.5, 467.0
attribute	depth_cmbsf	bcodmo_name	String	depth_bsf
attribute	depth_cmbsf	colorBarMaximum	double	8000.0
attribute	depth_cmbsf	colorBarMinimum	double	-8000.0
attribute	depth_cmbsf	colorBarPalette	String	TopographyDepth
attribute	depth_cmbsf	description	String	Depth in centimeters below seafloor
attribute	depth_cmbsf	long_name	String	Depth
attribute	depth_cmbsf	standard_name	String	depth
attribute	depth_cmbsf	units	String	centimeters (cm)
variable	CtoN_ratio		float
attribute	CtoN_ratio	_FillValue	float	NaN
attribute	CtoN_ratio	actual_range	float	7.1, 10.3
attribute	CtoN_ratio	bcodmo_name	String	C_to_N
attribute	CtoN_ratio	description	String	Ratio of organic matter C to N
attribute	CtoN_ratio	long_name	String	Cto N Ratio
attribute	CtoN_ratio	units	String	unitless
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.4136768E9, 1.413936E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	date
attribute	time	description	String	Sample date. Format: yyyy-mm-dd
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Date
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	time	source_name	String	date
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.