The mean composition of ocean ridge basalts

Gale, A.; Dalton, C. A.; Langmuir, C. H.; Su, Yongjun; Schilling, Jean-Guy

doi:10.1029/2012gc004334

Cited by 1,299 publications

(1,079 citation statements)

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“…(Sun and McDonough, 1989) incompatible trace element diagrams of the uncontaminated (εNd = +9) Group 3 dikes. Average MORB (Gale et al, 2013), variably subduction-modified MORB (1 with 100% modification, 2 with 50% modification; Kogiso et al, 1997;cf. section 5.2.2.…”

Section: Discussionmentioning

confidence: 99%

“…In order to model the trace element composition of the recycled component, we used the mean MORB of Gale et al (2013) as the igneous crust composition. The effects of subduction modification were calculated on the basis of fluid-rock distribution coefficients obtained in dehydration experiments on a MORB-like amphibolite (Kogiso et al, 1997; Table S3).…”

Section: Trace Element Constraints On the Recycled Mantle Componentmentioning

confidence: 99%

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Subduction-modified oceanic crust mixed with a depleted mantle reservoir in the sources of the Karoo continental flood basalt province

Heinonen

Carlson

Riley

et al. 2014

Earth and Planetary Science Letters

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Section: Discussionmentioning

confidence: 99%

Section: Trace Element Constraints On the Recycled Mantle Componentmentioning

confidence: 99%

Subduction-modified oceanic crust mixed with a depleted mantle reservoir in the sources of the Karoo continental flood basalt province

Heinonen

Carlson

Riley

et al. 2014

Earth and Planetary Science Letters

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“…Examples include studies on diversity in mid-ocean ridge basalt (MORB) composition (e.g., Gale et al, 2013) and global patterns of intraplate volcanism (Conrad et al, 2011). PetDB is actively used by the scientific community and has over 600 citations in the literature since 2000 (http:// www.earthchem.org/citations/petdb, accessed 3/20/2016).…”

Section: Rock Geochemistry Use Case: the Petrological Database (Petdb)mentioning

confidence: 99%

Enhancing Interoperability and Capabilities of Earth Science Data using the Observations Data Model 2 (ODM2)

Hsu

Mayorga

Horsburgh

et al. 2017

Data Science Journal

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Earth Science researchers require access to integrated, cross-disciplinary data in order to answer critical research questions. Partially due to these science drivers, it is common for disciplinary data systems to expand from their original scope in order to accommodate collaborative research. The result is multiple disparate databases with overlapping but incompatible data. In order to enable more complete data integration and analysis, the Observations Data Model Version 2 (ODM2) was developed to be a general information model, with one of its major goals to integrate data collected by in situ sensors with those by ex-situ analyses of field specimens. Four use cases with different science drivers and disciplines have adopted ODM2 because of benefits to their users. The disciplines behind the four cases are diverse -hydrology, rock geochemistry, soil geochemistry, and biogeochemistry. For each case, we outline the benefits, challenges, and rationale for adopting ODM2. In each case, the decision to implement ODM2 was made to increase interoperability and expand data and metadata capabilities. One of the common benefits was the ability to use the flexible handling and comprehensive description of specimens and data collection sites in ODM2's sampling feature concept. We also summarize best practices for implementing ODM2 based on the experience of these initial adopters. The descriptions here should help other potential adopters of ODM2 implement their own instances or to modify ODM2 to suit their needs.Keywords: observations; information model; data management; interoperability; cyberinfrastructure IntroductionThe magnitude and diversity of Earth science observations is increasing exponentially. This data richness is fueling new and novel studies that advance our understanding of Earth and environmental processes; however, tools for integrating, efficiently managing, properly documenting, and making such data accessible to diverse groups of collaborating scientists are still in early stages. The need for such tools is clearly shown by large collaborative projects such as the Critical Zone Observatories (e.g., Brantley et al., 2007). These projects include many investigators that produce many different types of data, much of which is often stored and managed in its own domain-specific data system or by idiosyncratic, custom approaches. While domain-specific data systems may provide advanced functionality for particular data types, working with them requires disciplinary knowledge for navigation and data access. The specificity of data types within these systems has commonly led to challenges in integrating data across systems, domains, and research groups. To achieve the science goals of these collaborative projects, however, the different data types must be compared, integrated, and analyzed across sources. Hsu et al: Enhancing Interoperability and Capabilities of Earth ScienceData using the Observations Data Model 2 (ODM2) Art. 4, page 2 of 16This need for interdisciplinary data interoperability across scientif...

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“…Basalts from the CIR have distinct trace element ratios, as exemplified by changes in Zr/Y ratios for basalts from the study area. Basalts from the CIR-S1 segment have Zr/Y ratios of for all other data, including Hedge et al (1979), Michard et al (1986), Price et al (1986), Engel and Fisher (1975), Engel et al (1965), Subbarao et al (1975), Jenner and O'Neill (2012), and Gale et al (2013) ~3.0-3.5, whereas basalts from CIR-S2 have values of 2.0-2.5 ( Fig. 13.3), and basalts from CIR-S4 have values around 2.0.…”

Section: Trace Element Chemistrymentioning

confidence: 99%

“…11). The locations of dredge and rock core sampling undertaken during the KH-93-3 cruise are from Tamaki and Fujimoto (Tamaki and Fujimoto 1995), and the locations sampled by previous studies (Gale et al 2013;Price et al 1986) are sourced from the PetDB database (accessed 2013/07/04) dried at 950 C before being melted at 1,200 C in a mixture consisting of 0.9000 g powdered sample and 4.5000 g lithium tetraborate (Li 2 B 4 O 7 ) flux. XRF calibration lines were determined using the approach of Sato (Sato 2010).…”

Section: Analytical Techniquesmentioning

confidence: 99%

Petrology and Geochemistry of Mid-Ocean Ridge Basalts from the Southern Central Indian Ridge

Sato

Nakamura

Kumagai

et al. 2014

Subseafloor Biosphere Linked to Hydrothermal Systems

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Two hydrothermal fields, the Kairei and Edmond hydrothermal fields, are known in the southern Central Indian Ridge (CIR). The Kairei hydrothermal field at 25 19 0 S is associated with hydrogen-rich hydrothermal activity, whereas the Edmond hydrothermal field at 23 52 0 S is recognized in the typical mid-ocean ridge type hydrothermal activity. Differences of lithology and geological background between two hydrothermal fields are reflected in the different type of hydrothermal activity. We recovered more than 870 kg of rock samples by dredging from the southern part of the CIR adjacent to the Kairei and Edmond hydrothermal fields during the KH-10-6 cruise. Here, we present new petrological and geochemical data for MORB samples taken between the CIR-S1 and CIR-S4 segments with the aim of constraining distributions of lithology at the southern CIR, and discuss the petrogenesis and the mantle source for these basalts. The MORB melts that formed rocks within the CIR-S1, CIR-S2, and CIR-S4 segments equilibrated with mantle olivine at approximately 10 kbar, and were erupted after undergoing only minor fractionation. MORB samples from the CIR-S4 segment have slightly depleted trace element compositions, whereas MORB samples from the off-ridge part of the CIR-S1 segment are highly depleted. MORB samples from the Knorr seamount have enriched compositions involved a minor amount of hotspot-derived material, as indicated by previous isotope analyses. The presence of a depleted MORB source beneath the off-ridge section of the CIR-S1 segment indicates that the older mantle material at the boundary between the

show abstract

The mean composition of ocean ridge basalts

Cited by 1,299 publications

References 68 publications

Subduction-modified oceanic crust mixed with a depleted mantle reservoir in the sources of the Karoo continental flood basalt province

Subduction-modified oceanic crust mixed with a depleted mantle reservoir in the sources of the Karoo continental flood basalt province

Enhancing Interoperability and Capabilities of Earth Science Data using the Observations Data Model 2 (ODM2)

Petrology and Geochemistry of Mid-Ocean Ridge Basalts from the Southern Central Indian Ridge

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