{"data":{"id":"10.1594/pangaea.712091","type":"dois","attributes":{"doi":"10.1594/pangaea.712091","prefix":"10.1594","suffix":"pangaea.712091","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Manning, Craig E","givenName":"Craig E","familyName":"Manning","affiliation":[],"nameIdentifiers":[]},{"name":"Weston, Patricia E","givenName":"Patricia E","familyName":"Weston","affiliation":[],"nameIdentifiers":[]},{"name":"Mahon, Keith I","givenName":"Keith I","familyName":"Mahon","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Element concentrations of amphiboles in ODP Hole 147-894G (Table 1)"}],"publisher":"PANGAEA","container":{},"publicationYear":1996,"subjects":[{"subject":"DEPTH, sediment/rock","subjectScheme":"Parameter"},{"subject":"Sample code/label","subjectScheme":"Parameter"},{"subject":"Sample code/label 2","subjectScheme":"Parameter"},{"subject":"Silicon dioxide","subjectScheme":"Parameter"},{"subject":"Titanium dioxide","subjectScheme":"Parameter"},{"subject":"Aluminium oxide","subjectScheme":"Parameter"},{"subject":"Iron oxide, FeO","subjectScheme":"Parameter"},{"subject":"Manganese oxide","subjectScheme":"Parameter"},{"subject":"Magnesium oxide","subjectScheme":"Parameter"},{"subject":"Calcium oxide","subjectScheme":"Parameter"},{"subject":"Sodium oxide","subjectScheme":"Parameter"},{"subject":"Potassium oxide","subjectScheme":"Parameter"},{"subject":"Silicon","subjectScheme":"Parameter"},{"subject":"Aluminium (IV)","subjectScheme":"Parameter"},{"subject":"Aluminium (VI)","subjectScheme":"Parameter"},{"subject":"Titanium","subjectScheme":"Parameter"},{"subject":"Iron 3+","subjectScheme":"Parameter"},{"subject":"Magnesium","subjectScheme":"Parameter"},{"subject":"Iron 2+","subjectScheme":"Parameter"},{"subject":"Manganese","subjectScheme":"Parameter"},{"subject":"Sodium","subjectScheme":"Parameter"},{"subject":"Calcium","subjectScheme":"Parameter"},{"subject":"Potassium","subjectScheme":"Parameter"},{"subject":"Fraction","subjectScheme":"Parameter"},{"subject":"Temperature, calculated","subjectScheme":"Parameter"},{"subject":"Drilling/drill rig","subjectScheme":"Method"},{"subject":"DSDP/ODP/IODP sample designation","subjectScheme":"Method"},{"subject":"Calculated","subjectScheme":"Method"},{"subject":"Leg147","subjectScheme":"Campaign"},{"subject":"Joides Resolution","subjectScheme":"Basis"},{"subject":"Ocean Drilling Program (ODP)","subjectScheme":"Project"}],"contributors":[],"dates":[{"date":"1996","dateType":"Issued"}],"language":"en","types":{"ris":"DATA","bibtex":"misc","citeproc":"dataset","schemaOrg":"Dataset","resourceType":"Supplementary Dataset","resourceTypeGeneral":"Dataset"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1016/0012-821x(96)00153-7","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["240 data points"],"formats":["text/tab-separated-values"],"version":null,"rightsList":[{"rights":"Creative Commons Attribution 3.0 Unported","rightsUri":"https://creativecommons.org/licenses/by/3.0/legalcode","schemeUri":"https://spdx.org/licenses/","rightsIdentifier":"cc-by-3.0","rightsIdentifierScheme":"SPDX"}],"descriptions":[{"description":"Metamorphosed oceanic gabbros provide a record of the cooling history of the lower crust near mid-ocean ridges, but the temperature range, rate, and location of subsolidus events are poorly known. We combine hornblende-plagioclase thermometry, statistical analysis, and thermal models to estimate precisely the temperature, time, distance from axis, and duration of metamorphism in East Pacific Rise gabbros from Hess Deep, ODP Hole 894G. Metamorphic hornblende and plagioclase, which formed during microfracturing and sea water penetration, equilibrated at a mean temperature of 716 +/- 8°C (90% confidence level). Comparison of the properties of the observed temperature distribution with those of model events indicates that metamorphism spanned \u0026lt;= 60°C. When combined with thermal models of fast-spreading centers, this implies that metamorphism was rapid (\u0026lt;= 6000 yr) and occurred 1-4 km off axis. Application of this approach to other gabbros will allow comparison of spatial and temporal characteristics of deformation and fluid flow in the lower oceanic crust as a function of ridge setting.","descriptionType":"Abstract"},{"description":"# of ions give the cations per 23 anhydrous oxygens","descriptionType":"TechnicalInfo"},{"description":"Supplement to: Manning, Craig E; Weston, Patricia E; Mahon, Keith I (1996): Rapid high-temperature metamorphism of East Pacific Rise gabbros from Hess Deep. Earth and Planetary Science Letters, 144(1-2), 123-132","descriptionType":"Other"}],"geoLocations":[{"geoLocationPoint":{"pointLatitude":"2.2996","pointLongitude":"-101.525"}},{"geoLocationPlace":"North Pacific 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