<div><p>Samples were collected from 3 sites: Big Strytan, Arnarnasstrytan, and Hrisey (see lat/lon below). SCUBA diving was utilized to collect vent fluids and hydrothermal precipitates. Vent fluids for geochemistry were sampled in sterile 60 ml syringes. The first 20 ml was discarded to decrease the amount of seawater contamination during sampling. Vent fluid sampling for dissolved gases consisted of 2 methods: 1) the “syringe-to- syringe” method (STS), and 2) the “syringe-to-bottle” method (STB). The STS method consisted of pulling 40 ml of vent fluid at the end of a dive, transporting it back to the lab, and equilibrating the fluid with 20 ml of purified N2. The gas was then injected into Cali-5-Bond gas sampling bags for transport prior to analysis by GC. The STB method consisted of pulling a known volume of vent fluid (typically 40 ml) into a syringe, and immediately injecting into a 60 ml N2-flushed, evacuated, serum bottle.</p>
<p>Temperatures were measured in situ using a temperature probe. The pH/ORP/Conductivity/TDS were measured on shore using a Myron-L field pH meter. Aliquots for H2S measurements were preserved in the field by precipitation of ZnS following the addition of 1 ml of a 50 mM zinc acetate solution to a 3 ml sample, placed on dry ice, and analyzed in the laboratory with a spectrophotometer at a wavelength of 670 nm. Samples for anion analysis (Br, Cl, and SO4) were filtered in the field (0.2 um), placed on dry ice, and kept frozen until measurement in the laboratory using ion chromatography. Samples for analysis of major cations and trace elements (Na, B, Mg, Si, K, Ca, Al, As, V, Cr, Cu, Zn, Sr, Mo, and W) were preserved in the field by filtering (0.2 um) and acidification with 0.1% ultrapure HNO3, and measured by inductively coupled plasma-mass spectrometry (ICP-MS). Dissolved gases (H2, CH4, and CO), as well as organic acids and DIC, were analyzed at NASA Ames in the lab of Tori Hoehler. D13C-CH4 was measured at Montana State University by Eric Boyd.</p>
<p><strong>Detection Limits:</strong><br />
Lactate 0.067<br />
Acetate 2.754<br />
Formate 2.791<br />
Propionate 0.000<br />
Butyrate 2.862<br />
Valerate 0.000</p></div>
Organic acid concentrations from the Strytan Hydrothermal Field
Strytan Hydrothermal Field: organic acids
<div><p><strong>BCO-DMO Data Manager Processing Notes:</strong><br />
* added a conventional header with dataset name, PI name, version date<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* blank values replaced with no data value 'nd'<br />
* location names, latitude, and longitude added</p></div>
685487
Strytan Hydrothermal Field: organic acids
2017-03-22T16:14:29-04:00
2017-03-22T16:14:29-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:685487
Organic acid concentrations from the Strytan Hydrothermal Field collected by SCUBA July 15-8 2012 (C-DEBI, Lost City-type hydrothermal system project)
These data include concentrations of organic acids (lactate, acetate, formate, propionate, butyrate, and valerate). Data were collected at the Strytan Hydrothermal Field (SHF) during a CDEBI-funded expedition July 15-18, 2012.
false
Price, R., Amend, J. (2017) Organic acid concentrations from the Strytan Hydrothermal Field collected by SCUBA July 15-8 2012 (C-DEBI, Lost City-type hydrothermal system project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2017-03-22 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/685487 [access date]
false
false
2017-03-22
HTML
https://www.bco-dmo.org/dataset/685487
text/html
Datapackage.json
Frictionless Data Package
https://www.bco-dmo.org/dataset/685487/datapackage.json
application/vnd.datapackage+json
PDF
https://www.bco-dmo.org/dataset/685487/Dataset_description.pdf
application/pdf
JSON-LD
https://www.bco-dmo.org/dataset/685487.json
application/ld+json
Turtle
https://www.bco-dmo.org/dataset/685487.ttl
text/turtle
RDF/XML
https://www.bco-dmo.org/dataset/685487.rdf
application/rdf+xml
ISO 19115-2 (NOAA Profile)
https://www.bco-dmo.org/dataset/685487/iso
application/xml
http://www.isotc211.org/2005/gmd-noaa
Dublin Core
https://www.bco-dmo.org/dataset/685487/dublin-core
application/xml
http://purl.org/dc/elements/1.1/
685487
http://lod.bco-dmo.org/id/dataset/685487
OSPREY
http://www.opengis.net/def/crs/OGC/1.3/CRS84
<http://www.opengis.net/def/crs/OGC/1.3/CRS84> POLYGON((-18.400214 65.824674, -18.09397 65.824674, -18.09397 65.824674, -18.09397 66.025228, -18.400214 66.025228, -18.400214 65.824674))
-18.400214
65.824674
-18.09397
66.025228
65.924951000112
-18.247092000031