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     data   graph     files  public d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin
and Sonora Margin sediments collected from R/V El Puma, leaving Guaymas on October 14, 2014
and returning to Mazatlan on October 27, 2014
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_763715

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
attribute NC_GLOBAL acquisition_description String Sediment cores were obtained by Piston coring (using commercial PVC core
liners) onboard R/V El Puma. Samples selected for carbonate isotope analyses
were freeze-dried, homogenized, and roasted under vacuum to eliminate organic
matter. Isotope analyses was performed on ~500 \u00b5g of sediment using a
Kiel devise coupled with a Thermo MAT 253 gas ratio mass spectrometer at the
University of California, Santa Cruz. Values are reported in the per mil
(\u2030) notation relative to Vienna Pee Dee Belemnite (VPDB). Reproducibility
of in-house standards is 0.07\u2030 for 18O and 0.03\u2030 for 13C.
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 (external link)
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 Dr 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 (external link)
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 Isotopic data for carbonate nodules and sedimentary carbonates
from the Guaymas Basin and Sonora Margin
PI: Andreas Teske (UNC Chapel Hill)
Co-PI: Ana Christina Ravelo (UC Santa Cruz)
Version date: 13-March-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/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.2d 13 Jun 2019
attribute NC_GLOBAL date_created String 2019-03-27T17:24:50Z
attribute NC_GLOBAL date_modified String 2019-06-04T20:47:26Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.763715.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/763715 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Isotope analyses was performed on ~500 �g of sediment using a Kiel devise coupled with a Thermo MAT 253 gas ratio mass spectrometer at the University of California, Santa Cruz.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 763851
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/ (external link)
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 Thermo MAT 253
attribute NC_GLOBAL instruments_1_acronym String Piston Corer
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 769507
attribute NC_GLOBAL instruments_1_description String 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.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/51/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Piston Corer
attribute NC_GLOBAL instruments_1_instrument_nid String 519
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, cm_in_core, core, Core_section_cm, d13, d13C, d13C_stdev, d18, d18O, d18O_stdev, data, dataset, deviation, dmo, erddap, management, oceanography, office, preliminary, sample, sample_type, section, standard, standard deviation, stdev, type
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/763715 (external link)
attribute NC_GLOBAL param_mapping String {'763715': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/763715/parameters (external link)
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 University of California-Santa Cruz
attribute NC_GLOBAL people_1_affiliation_acronym String UC Santa Cruz
attribute NC_GLOBAL people_1_person_name String Ana Christina Ravelo
attribute NC_GLOBAL people_1_person_nid String 661684
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 Contact
attribute NC_GLOBAL people_2_role_type String related
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 proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin
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 publisher_name String Shannon Rauch
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma (the Pacific Coast research vessel of the Autonomous University of Mexico) from October 14, 2014 to October 27, 2014.\r\n\r\nData for each core include: sample identification (core No., section number, cm within section, sample type), total sediment depth in cm, and d\u00b9\u00b3C isotopic composition in permille. background = sediment around the nodule.
attribute NC_GLOBAL title String d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma, leaving Guaymas on October 14, 2014 and returning to Mazatlan on October 27, 2014
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable Core_section_cm   String  
attribute Core_section_cm description String Sample identification (core number, section number, cm within section)
attribute Core_section_cm ioos_category String Unknown
attribute Core_section_cm long_name String Core Section Cm
attribute Core_section_cm units String unitless
variable cm_in_core   float  
attribute cm_in_core _FillValue float NaN
attribute cm_in_core actual_range float 1.5, 375.5
attribute cm_in_core description String Total sediment depth in centimeters
attribute cm_in_core ioos_category String Unknown
attribute cm_in_core long_name String Cm In Core
attribute cm_in_core units String centimeters (cm)
variable sample_type   String  
attribute sample_type description String Description of sample type
attribute sample_type ioos_category String Unknown
attribute sample_type long_name String Sample Type
attribute sample_type units String unitless
variable d13C   float  
attribute d13C _FillValue float NaN
attribute d13C actual_range float -39.96, 9.52
attribute d13C description String d13C stable isotope values reported in per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB)
attribute d13C ioos_category String Unknown
attribute d13C long_name String D13 C
attribute d13C units String per mil (‰)
variable d13C_stdev   float  
attribute d13C_stdev _FillValue float NaN
attribute d13C_stdev actual_range float 0.01, 2.56
attribute d13C_stdev description String Standard deviation of d13C
attribute d13C_stdev ioos_category String Unknown
attribute d13C_stdev long_name String D13 C Stdev
attribute d13C_stdev units String per mil (‰)
variable d18O   float  
attribute d18O _FillValue float NaN
attribute d18O actual_range float -1.07, 4.24
attribute d18O description String d18O stable isotope values reported in per mil (‰) notation relative to Vienna Pee Dee Belemnite (VPDB)
attribute d18O ioos_category String Unknown
attribute d18O long_name String D18 O
attribute d18O units String per mil (‰)
variable d18O_stdev   float  
attribute d18O_stdev _FillValue float NaN
attribute d18O_stdev actual_range float 0.01, 0.18
attribute d18O_stdev description String Standard deviation of d18O
attribute d18O_stdev ioos_category String Unknown
attribute d18O_stdev long_name String D18 O Stdev
attribute d18O_stdev units String per mil (‰)

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


 
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