The effects of metamorphism on O and Fe isotope compositions in the Biwabik Iron Formation, northern Minnesota View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2008-03

AUTHORS

Elizabeth Valaas Hyslop, John W. Valley, Clark M. Johnson, Brian L. Beard

ABSTRACT

The Biwabik Iron Formation of Minnesota (1.9 Ga) underwent contact metamorphism by intrusion of the Duluth Complex (1.1 Ga). Apparent quartz–magnetite oxygen isotope temperatures decrease from ∼700°C at the contact to ∼375°C at 2.6 km distance (normal to the contact in 3D). Metamorphic pigeonite at the contact, however, indicates that peak temperatures were greater than 825°C. The apparent O isotope temperatures, therefore, reflect cooling, and not peak metamorphic conditions. Magnetite was reset in δ18O as a function of grain size, indicating that isotopic exchange was controlled by diffusion of oxygen in magnetite for samples from above the grunerite isograd. Apparent quartz–magnetite O isotope temperatures are similar to calculated closure temperatures for oxygen diffusion in magnetite at a cooling rate of ∼5.6°C/kyr, which suggests that the Biwabik Iron Formation cooled from ∼825 to 400°C in ∼75 kyr at the contact with the Duluth Complex. Isotopic exchange during metamorphism also occurred for Fe, where magnetite–Fe silicate fractionations decrease with increasing metamorphic grade. Correlations between quartz–magnetite O isotope fractionations and magnetite–iron silicate Fe isotope fractionations suggest that both reflect cooling, where the closure temperature for Fe was higher than for O. The net effect of metamorphism on δ18O–δ56Fe variations in magnetite is a strong increase in δ18OMt and a mild decrease in δ56Fe with increasing metamorphic grade, relative to the isotopic compositions that are expected at the low temperatures of initial magnetite formation. If metamorphism of Iron Formations occurs in a closed system, bulk O and Fe isotope compositions may be preserved, although re-equilibration among the minerals may occur for both O and Fe isotopes. More... »

PAGES

313-328

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00410-007-0244-2

DOI

http://dx.doi.org/10.1007/s00410-007-0244-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1024617913


Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
Incoming Citations Browse incoming citations for this publication using opencitations.net

JSON-LD is the canonical representation for SciGraph data.

TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

[
  {
    "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
    "about": [
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0402", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Geochemistry", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/04", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Earth Sciences", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "University of Wisconsin\u2013Madison", 
          "id": "https://www.grid.ac/institutes/grid.14003.36", 
          "name": [
            "Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 West Dayton Street, 53706, Madison, WI, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Hyslop", 
        "givenName": "Elizabeth Valaas", 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "University of Wisconsin\u2013Madison", 
          "id": "https://www.grid.ac/institutes/grid.14003.36", 
          "name": [
            "Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 West Dayton Street, 53706, Madison, WI, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Valley", 
        "givenName": "John W.", 
        "id": "sg:person.013070671177.63", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.013070671177.63"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "University of Wisconsin\u2013Madison", 
          "id": "https://www.grid.ac/institutes/grid.14003.36", 
          "name": [
            "Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 West Dayton Street, 53706, Madison, WI, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Johnson", 
        "givenName": "Clark M.", 
        "id": "sg:person.0643605220.99", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0643605220.99"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "University of Wisconsin\u2013Madison", 
          "id": "https://www.grid.ac/institutes/grid.14003.36", 
          "name": [
            "Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 West Dayton Street, 53706, Madison, WI, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Beard", 
        "givenName": "Brian L.", 
        "id": "sg:person.0711624536.08", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0711624536.08"
        ], 
        "type": "Person"
      }
    ], 
    "citation": [
      {
        "id": "https://doi.org/10.1016/j.gca.2007.10.013", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1000874230"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/j.gca.2004.06.043", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1001868679"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2138/gsrmg.43.1.365", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1002958900"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/s0009-2541(97)00131-9", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1010201985"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2138/gsrmg.55.1.359", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1011222689"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2138/gsrmg.55.1.113", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1011754425"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0031-9201(78)90015-8", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1012168931"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0031-9201(78)90015-8", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1012168931"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0024-4937(81)90047-5", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1013089368"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0024-4937(81)90047-5", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1013089368"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/j.gca.2007.05.019", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1014634735"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0016-7037(76)90151-4", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1015047652"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0016-7037(76)90151-4", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1015047652"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1029/97jb00208", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1015100167"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0009-2541(89)90019-3", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1016411082"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0009-2541(89)90019-3", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1016411082"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2138/gsrmg.43.1.83", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1017290231"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1130/0016-7606(2003)115<0566:hactif>2.0.co;2", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1017734029"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/bf00372366", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1019325810", 
          "https://doi.org/10.1007/bf00372366"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/j.gca.2004.04.023", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1024240735"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0016-7037(76)90129-0", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1026458384"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0016-7037(76)90129-0", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1026458384"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/bf00373790", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1027195987", 
          "https://doi.org/10.1007/bf00373790"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s00410-006-0141-0", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1027201293", 
          "https://doi.org/10.1007/s00410-006-0141-0"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1029/jb089ib06p04047", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1028492029"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2343/geochemj.32.71", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1029955702"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1146/annurev.earth.36.031207.124139", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1033172769"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/bf00321758", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1035423579", 
          "https://doi.org/10.1007/bf00321758"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/bf00321758", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1035423579", 
          "https://doi.org/10.1007/bf00321758"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/s0016-7037(99)00329-4", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1036245618"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0012-821x(88)90037-4", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1038722850"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0012-821x(88)90037-4", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1038722850"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "sg:pub.10.1007/s00410-002-0418-x", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1045406418", 
          "https://doi.org/10.1007/s00410-002-0418-x"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1126/science.1104639", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1047567099"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1130/0016-7606(1972)83[647:sooaci]2.0.co;2", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1048069225"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/j.epsl.2006.11.042", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1052481548"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1139/e02-028", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1053026276"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/s0009-2541(02)00390-x", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1053246127"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/s0009-2541(02)00390-x", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1053246127"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1016/0016-7037(95)00386-x", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1053718193"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1021/ac60289a016", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1055059329"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1086/649676", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1058840202"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1093/petrology/19.2.215", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1059972445"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1126/science.153.3735.528", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1062489200"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1126/science.160.3829.729", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1062494428"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1126/science.245.4925.1481", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1062538382"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2113/gsecongeo.68.7.1110", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1068930498"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2113/gsecongeo.70.2.319", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1068930705"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2113/gsecongeo.87.6.1649", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1068933136"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2475/ajs.255.4.306", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1070840028"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2475/ajs.257.1.44", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1070840109"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.2475/ajs.286.7.540", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1070841866"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1130/0-8137-2312-4.137", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1088802422"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1130/mem135-p225", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1088805403"
        ], 
        "type": "CreativeWork"
      }, 
      {
        "id": "https://doi.org/10.1515/9781501509360-007", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1109797281"
        ], 
        "type": "CreativeWork"
      }
    ], 
    "datePublished": "2008-03", 
    "datePublishedReg": "2008-03-01", 
    "description": "The Biwabik Iron Formation of Minnesota (1.9 Ga) underwent contact metamorphism by intrusion of the Duluth Complex (1.1 Ga). Apparent quartz\u2013magnetite oxygen isotope temperatures decrease from \u223c700\u00b0C at the contact to \u223c375\u00b0C at 2.6 km distance (normal to the contact in 3D). Metamorphic pigeonite at the contact, however, indicates that peak temperatures were greater than 825\u00b0C. The apparent O isotope temperatures, therefore, reflect cooling, and not peak metamorphic conditions. Magnetite was reset in \u03b418O as a function of grain size, indicating that isotopic exchange was controlled by diffusion of oxygen in magnetite for samples from above the grunerite isograd. Apparent quartz\u2013magnetite O isotope temperatures are similar to calculated closure temperatures for oxygen diffusion in magnetite at a cooling rate of \u223c5.6\u00b0C/kyr, which suggests that the Biwabik Iron Formation cooled from \u223c825 to 400\u00b0C in \u223c75 kyr at the contact with the Duluth Complex. Isotopic exchange during metamorphism also occurred for Fe, where magnetite\u2013Fe silicate fractionations decrease with increasing metamorphic grade. Correlations between quartz\u2013magnetite O isotope fractionations and magnetite\u2013iron silicate Fe isotope fractionations suggest that both reflect cooling, where the closure temperature for Fe was higher than for O. The net effect of metamorphism on \u03b418O\u2013\u03b456Fe variations in magnetite is a strong increase in \u03b418OMt and a mild decrease in \u03b456Fe with increasing metamorphic grade, relative to the isotopic compositions that are expected at the low temperatures of initial magnetite formation. If metamorphism of Iron Formations occurs in a closed system, bulk O and Fe isotope compositions may be preserved, although re-equilibration among the minerals may occur for both O and Fe isotopes.", 
    "genre": "research_article", 
    "id": "sg:pub.10.1007/s00410-007-0244-2", 
    "inLanguage": [
      "en"
    ], 
    "isAccessibleForFree": false, 
    "isFundedItemOf": [
      {
        "id": "sg:grant.3060775", 
        "type": "MonetaryGrant"
      }, 
      {
        "id": "sg:grant.3027032", 
        "type": "MonetaryGrant"
      }
    ], 
    "isPartOf": [
      {
        "id": "sg:journal.1026106", 
        "issn": [
          "0010-7999", 
          "1432-0967"
        ], 
        "name": "Contributions to Mineralogy and Petrology", 
        "type": "Periodical"
      }, 
      {
        "issueNumber": "3", 
        "type": "PublicationIssue"
      }, 
      {
        "type": "PublicationVolume", 
        "volumeNumber": "155"
      }
    ], 
    "name": "The effects of metamorphism on O and Fe isotope compositions in the Biwabik Iron Formation, northern Minnesota", 
    "pagination": "313-328", 
    "productId": [
      {
        "name": "readcube_id", 
        "type": "PropertyValue", 
        "value": [
          "7547c6c295dea19d51f3c0cff097b95963606821a1ffe7e31c46dcbb36785bfa"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1007/s00410-007-0244-2"
        ]
      }, 
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1024617913"
        ]
      }
    ], 
    "sameAs": [
      "https://doi.org/10.1007/s00410-007-0244-2", 
      "https://app.dimensions.ai/details/publication/pub.1024617913"
    ], 
    "sdDataset": "articles", 
    "sdDatePublished": "2019-04-11T14:33", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-uberresearch-data-dimensions-target-20181106-alternative/cleanup/v134/2549eaecd7973599484d7c17b260dba0a4ecb94b/merge/v9/a6c9fde33151104705d4d7ff012ea9563521a3ce/jats-lookup/v90/0000000373_0000000373/records_13104_00000000.jsonl", 
    "type": "ScholarlyArticle", 
    "url": "http://link.springer.com/10.1007/s00410-007-0244-2"
  }
]
 

Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/s00410-007-0244-2'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/s00410-007-0244-2'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/s00410-007-0244-2'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/s00410-007-0244-2'


 

This table displays all metadata directly associated to this object as RDF triples.

231 TRIPLES      21 PREDICATES      74 URIs      19 LITERALS      7 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1007/s00410-007-0244-2 schema:about anzsrc-for:04
2 anzsrc-for:0402
3 schema:author N2722550373024b7e8403c9e64c4c1850
4 schema:citation sg:pub.10.1007/bf00321758
5 sg:pub.10.1007/bf00372366
6 sg:pub.10.1007/bf00373790
7 sg:pub.10.1007/s00410-002-0418-x
8 sg:pub.10.1007/s00410-006-0141-0
9 https://doi.org/10.1016/0009-2541(89)90019-3
10 https://doi.org/10.1016/0012-821x(88)90037-4
11 https://doi.org/10.1016/0016-7037(76)90129-0
12 https://doi.org/10.1016/0016-7037(76)90151-4
13 https://doi.org/10.1016/0016-7037(95)00386-x
14 https://doi.org/10.1016/0024-4937(81)90047-5
15 https://doi.org/10.1016/0031-9201(78)90015-8
16 https://doi.org/10.1016/j.epsl.2006.11.042
17 https://doi.org/10.1016/j.gca.2004.04.023
18 https://doi.org/10.1016/j.gca.2004.06.043
19 https://doi.org/10.1016/j.gca.2007.05.019
20 https://doi.org/10.1016/j.gca.2007.10.013
21 https://doi.org/10.1016/s0009-2541(02)00390-x
22 https://doi.org/10.1016/s0009-2541(97)00131-9
23 https://doi.org/10.1016/s0016-7037(99)00329-4
24 https://doi.org/10.1021/ac60289a016
25 https://doi.org/10.1029/97jb00208
26 https://doi.org/10.1029/jb089ib06p04047
27 https://doi.org/10.1086/649676
28 https://doi.org/10.1093/petrology/19.2.215
29 https://doi.org/10.1126/science.1104639
30 https://doi.org/10.1126/science.153.3735.528
31 https://doi.org/10.1126/science.160.3829.729
32 https://doi.org/10.1126/science.245.4925.1481
33 https://doi.org/10.1130/0-8137-2312-4.137
34 https://doi.org/10.1130/0016-7606(1972)83[647:sooaci]2.0.co;2
35 https://doi.org/10.1130/0016-7606(2003)115<0566:hactif>2.0.co;2
36 https://doi.org/10.1130/mem135-p225
37 https://doi.org/10.1139/e02-028
38 https://doi.org/10.1146/annurev.earth.36.031207.124139
39 https://doi.org/10.1515/9781501509360-007
40 https://doi.org/10.2113/gsecongeo.68.7.1110
41 https://doi.org/10.2113/gsecongeo.70.2.319
42 https://doi.org/10.2113/gsecongeo.87.6.1649
43 https://doi.org/10.2138/gsrmg.43.1.365
44 https://doi.org/10.2138/gsrmg.43.1.83
45 https://doi.org/10.2138/gsrmg.55.1.113
46 https://doi.org/10.2138/gsrmg.55.1.359
47 https://doi.org/10.2343/geochemj.32.71
48 https://doi.org/10.2475/ajs.255.4.306
49 https://doi.org/10.2475/ajs.257.1.44
50 https://doi.org/10.2475/ajs.286.7.540
51 schema:datePublished 2008-03
52 schema:datePublishedReg 2008-03-01
53 schema:description The Biwabik Iron Formation of Minnesota (1.9 Ga) underwent contact metamorphism by intrusion of the Duluth Complex (1.1 Ga). Apparent quartz–magnetite oxygen isotope temperatures decrease from ∼700°C at the contact to ∼375°C at 2.6 km distance (normal to the contact in 3D). Metamorphic pigeonite at the contact, however, indicates that peak temperatures were greater than 825°C. The apparent O isotope temperatures, therefore, reflect cooling, and not peak metamorphic conditions. Magnetite was reset in δ18O as a function of grain size, indicating that isotopic exchange was controlled by diffusion of oxygen in magnetite for samples from above the grunerite isograd. Apparent quartz–magnetite O isotope temperatures are similar to calculated closure temperatures for oxygen diffusion in magnetite at a cooling rate of ∼5.6°C/kyr, which suggests that the Biwabik Iron Formation cooled from ∼825 to 400°C in ∼75 kyr at the contact with the Duluth Complex. Isotopic exchange during metamorphism also occurred for Fe, where magnetite–Fe silicate fractionations decrease with increasing metamorphic grade. Correlations between quartz–magnetite O isotope fractionations and magnetite–iron silicate Fe isotope fractionations suggest that both reflect cooling, where the closure temperature for Fe was higher than for O. The net effect of metamorphism on δ18O–δ56Fe variations in magnetite is a strong increase in δ18OMt and a mild decrease in δ56Fe with increasing metamorphic grade, relative to the isotopic compositions that are expected at the low temperatures of initial magnetite formation. If metamorphism of Iron Formations occurs in a closed system, bulk O and Fe isotope compositions may be preserved, although re-equilibration among the minerals may occur for both O and Fe isotopes.
54 schema:genre research_article
55 schema:inLanguage en
56 schema:isAccessibleForFree false
57 schema:isPartOf N150373e3cc5943d2b5e82bfbc8712647
58 Nc3a4e24280b74b0ca053e409fd0892e8
59 sg:journal.1026106
60 schema:name The effects of metamorphism on O and Fe isotope compositions in the Biwabik Iron Formation, northern Minnesota
61 schema:pagination 313-328
62 schema:productId N21ab2f1a50ee4551a73a4c7ab9117958
63 N2dd5fb2d78c24c88b481d3b69bb28857
64 Nafe7f0db0498420a815dae7d0bafcc1a
65 schema:sameAs https://app.dimensions.ai/details/publication/pub.1024617913
66 https://doi.org/10.1007/s00410-007-0244-2
67 schema:sdDatePublished 2019-04-11T14:33
68 schema:sdLicense https://scigraph.springernature.com/explorer/license/
69 schema:sdPublisher N34428d3cad0947dcbc924e5a029e3aa2
70 schema:url http://link.springer.com/10.1007/s00410-007-0244-2
71 sgo:license sg:explorer/license/
72 sgo:sdDataset articles
73 rdf:type schema:ScholarlyArticle
74 N150373e3cc5943d2b5e82bfbc8712647 schema:issueNumber 3
75 rdf:type schema:PublicationIssue
76 N21ab2f1a50ee4551a73a4c7ab9117958 schema:name dimensions_id
77 schema:value pub.1024617913
78 rdf:type schema:PropertyValue
79 N2722550373024b7e8403c9e64c4c1850 rdf:first N93053f1397cc425fbc54f6a62f9c4bfd
80 rdf:rest N74207db1ea7449a5b098428404f36204
81 N2dd5fb2d78c24c88b481d3b69bb28857 schema:name readcube_id
82 schema:value 7547c6c295dea19d51f3c0cff097b95963606821a1ffe7e31c46dcbb36785bfa
83 rdf:type schema:PropertyValue
84 N34428d3cad0947dcbc924e5a029e3aa2 schema:name Springer Nature - SN SciGraph project
85 rdf:type schema:Organization
86 N74207db1ea7449a5b098428404f36204 rdf:first sg:person.013070671177.63
87 rdf:rest Na06f1073b6b24ae48d67b93fa8ac502f
88 N93053f1397cc425fbc54f6a62f9c4bfd schema:affiliation https://www.grid.ac/institutes/grid.14003.36
89 schema:familyName Hyslop
90 schema:givenName Elizabeth Valaas
91 rdf:type schema:Person
92 Na06f1073b6b24ae48d67b93fa8ac502f rdf:first sg:person.0643605220.99
93 rdf:rest Na94ccf004c644b2aa599a566ee39ae6b
94 Na94ccf004c644b2aa599a566ee39ae6b rdf:first sg:person.0711624536.08
95 rdf:rest rdf:nil
96 Nafe7f0db0498420a815dae7d0bafcc1a schema:name doi
97 schema:value 10.1007/s00410-007-0244-2
98 rdf:type schema:PropertyValue
99 Nc3a4e24280b74b0ca053e409fd0892e8 schema:volumeNumber 155
100 rdf:type schema:PublicationVolume
101 anzsrc-for:04 schema:inDefinedTermSet anzsrc-for:
102 schema:name Earth Sciences
103 rdf:type schema:DefinedTerm
104 anzsrc-for:0402 schema:inDefinedTermSet anzsrc-for:
105 schema:name Geochemistry
106 rdf:type schema:DefinedTerm
107 sg:grant.3027032 http://pending.schema.org/fundedItem sg:pub.10.1007/s00410-007-0244-2
108 rdf:type schema:MonetaryGrant
109 sg:grant.3060775 http://pending.schema.org/fundedItem sg:pub.10.1007/s00410-007-0244-2
110 rdf:type schema:MonetaryGrant
111 sg:journal.1026106 schema:issn 0010-7999
112 1432-0967
113 schema:name Contributions to Mineralogy and Petrology
114 rdf:type schema:Periodical
115 sg:person.013070671177.63 schema:affiliation https://www.grid.ac/institutes/grid.14003.36
116 schema:familyName Valley
117 schema:givenName John W.
118 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.013070671177.63
119 rdf:type schema:Person
120 sg:person.0643605220.99 schema:affiliation https://www.grid.ac/institutes/grid.14003.36
121 schema:familyName Johnson
122 schema:givenName Clark M.
123 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0643605220.99
124 rdf:type schema:Person
125 sg:person.0711624536.08 schema:affiliation https://www.grid.ac/institutes/grid.14003.36
126 schema:familyName Beard
127 schema:givenName Brian L.
128 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.0711624536.08
129 rdf:type schema:Person
130 sg:pub.10.1007/bf00321758 schema:sameAs https://app.dimensions.ai/details/publication/pub.1035423579
131 https://doi.org/10.1007/bf00321758
132 rdf:type schema:CreativeWork
133 sg:pub.10.1007/bf00372366 schema:sameAs https://app.dimensions.ai/details/publication/pub.1019325810
134 https://doi.org/10.1007/bf00372366
135 rdf:type schema:CreativeWork
136 sg:pub.10.1007/bf00373790 schema:sameAs https://app.dimensions.ai/details/publication/pub.1027195987
137 https://doi.org/10.1007/bf00373790
138 rdf:type schema:CreativeWork
139 sg:pub.10.1007/s00410-002-0418-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1045406418
140 https://doi.org/10.1007/s00410-002-0418-x
141 rdf:type schema:CreativeWork
142 sg:pub.10.1007/s00410-006-0141-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1027201293
143 https://doi.org/10.1007/s00410-006-0141-0
144 rdf:type schema:CreativeWork
145 https://doi.org/10.1016/0009-2541(89)90019-3 schema:sameAs https://app.dimensions.ai/details/publication/pub.1016411082
146 rdf:type schema:CreativeWork
147 https://doi.org/10.1016/0012-821x(88)90037-4 schema:sameAs https://app.dimensions.ai/details/publication/pub.1038722850
148 rdf:type schema:CreativeWork
149 https://doi.org/10.1016/0016-7037(76)90129-0 schema:sameAs https://app.dimensions.ai/details/publication/pub.1026458384
150 rdf:type schema:CreativeWork
151 https://doi.org/10.1016/0016-7037(76)90151-4 schema:sameAs https://app.dimensions.ai/details/publication/pub.1015047652
152 rdf:type schema:CreativeWork
153 https://doi.org/10.1016/0016-7037(95)00386-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1053718193
154 rdf:type schema:CreativeWork
155 https://doi.org/10.1016/0024-4937(81)90047-5 schema:sameAs https://app.dimensions.ai/details/publication/pub.1013089368
156 rdf:type schema:CreativeWork
157 https://doi.org/10.1016/0031-9201(78)90015-8 schema:sameAs https://app.dimensions.ai/details/publication/pub.1012168931
158 rdf:type schema:CreativeWork
159 https://doi.org/10.1016/j.epsl.2006.11.042 schema:sameAs https://app.dimensions.ai/details/publication/pub.1052481548
160 rdf:type schema:CreativeWork
161 https://doi.org/10.1016/j.gca.2004.04.023 schema:sameAs https://app.dimensions.ai/details/publication/pub.1024240735
162 rdf:type schema:CreativeWork
163 https://doi.org/10.1016/j.gca.2004.06.043 schema:sameAs https://app.dimensions.ai/details/publication/pub.1001868679
164 rdf:type schema:CreativeWork
165 https://doi.org/10.1016/j.gca.2007.05.019 schema:sameAs https://app.dimensions.ai/details/publication/pub.1014634735
166 rdf:type schema:CreativeWork
167 https://doi.org/10.1016/j.gca.2007.10.013 schema:sameAs https://app.dimensions.ai/details/publication/pub.1000874230
168 rdf:type schema:CreativeWork
169 https://doi.org/10.1016/s0009-2541(02)00390-x schema:sameAs https://app.dimensions.ai/details/publication/pub.1053246127
170 rdf:type schema:CreativeWork
171 https://doi.org/10.1016/s0009-2541(97)00131-9 schema:sameAs https://app.dimensions.ai/details/publication/pub.1010201985
172 rdf:type schema:CreativeWork
173 https://doi.org/10.1016/s0016-7037(99)00329-4 schema:sameAs https://app.dimensions.ai/details/publication/pub.1036245618
174 rdf:type schema:CreativeWork
175 https://doi.org/10.1021/ac60289a016 schema:sameAs https://app.dimensions.ai/details/publication/pub.1055059329
176 rdf:type schema:CreativeWork
177 https://doi.org/10.1029/97jb00208 schema:sameAs https://app.dimensions.ai/details/publication/pub.1015100167
178 rdf:type schema:CreativeWork
179 https://doi.org/10.1029/jb089ib06p04047 schema:sameAs https://app.dimensions.ai/details/publication/pub.1028492029
180 rdf:type schema:CreativeWork
181 https://doi.org/10.1086/649676 schema:sameAs https://app.dimensions.ai/details/publication/pub.1058840202
182 rdf:type schema:CreativeWork
183 https://doi.org/10.1093/petrology/19.2.215 schema:sameAs https://app.dimensions.ai/details/publication/pub.1059972445
184 rdf:type schema:CreativeWork
185 https://doi.org/10.1126/science.1104639 schema:sameAs https://app.dimensions.ai/details/publication/pub.1047567099
186 rdf:type schema:CreativeWork
187 https://doi.org/10.1126/science.153.3735.528 schema:sameAs https://app.dimensions.ai/details/publication/pub.1062489200
188 rdf:type schema:CreativeWork
189 https://doi.org/10.1126/science.160.3829.729 schema:sameAs https://app.dimensions.ai/details/publication/pub.1062494428
190 rdf:type schema:CreativeWork
191 https://doi.org/10.1126/science.245.4925.1481 schema:sameAs https://app.dimensions.ai/details/publication/pub.1062538382
192 rdf:type schema:CreativeWork
193 https://doi.org/10.1130/0-8137-2312-4.137 schema:sameAs https://app.dimensions.ai/details/publication/pub.1088802422
194 rdf:type schema:CreativeWork
195 https://doi.org/10.1130/0016-7606(1972)83[647:sooaci]2.0.co;2 schema:sameAs https://app.dimensions.ai/details/publication/pub.1048069225
196 rdf:type schema:CreativeWork
197 https://doi.org/10.1130/0016-7606(2003)115<0566:hactif>2.0.co;2 schema:sameAs https://app.dimensions.ai/details/publication/pub.1017734029
198 rdf:type schema:CreativeWork
199 https://doi.org/10.1130/mem135-p225 schema:sameAs https://app.dimensions.ai/details/publication/pub.1088805403
200 rdf:type schema:CreativeWork
201 https://doi.org/10.1139/e02-028 schema:sameAs https://app.dimensions.ai/details/publication/pub.1053026276
202 rdf:type schema:CreativeWork
203 https://doi.org/10.1146/annurev.earth.36.031207.124139 schema:sameAs https://app.dimensions.ai/details/publication/pub.1033172769
204 rdf:type schema:CreativeWork
205 https://doi.org/10.1515/9781501509360-007 schema:sameAs https://app.dimensions.ai/details/publication/pub.1109797281
206 rdf:type schema:CreativeWork
207 https://doi.org/10.2113/gsecongeo.68.7.1110 schema:sameAs https://app.dimensions.ai/details/publication/pub.1068930498
208 rdf:type schema:CreativeWork
209 https://doi.org/10.2113/gsecongeo.70.2.319 schema:sameAs https://app.dimensions.ai/details/publication/pub.1068930705
210 rdf:type schema:CreativeWork
211 https://doi.org/10.2113/gsecongeo.87.6.1649 schema:sameAs https://app.dimensions.ai/details/publication/pub.1068933136
212 rdf:type schema:CreativeWork
213 https://doi.org/10.2138/gsrmg.43.1.365 schema:sameAs https://app.dimensions.ai/details/publication/pub.1002958900
214 rdf:type schema:CreativeWork
215 https://doi.org/10.2138/gsrmg.43.1.83 schema:sameAs https://app.dimensions.ai/details/publication/pub.1017290231
216 rdf:type schema:CreativeWork
217 https://doi.org/10.2138/gsrmg.55.1.113 schema:sameAs https://app.dimensions.ai/details/publication/pub.1011754425
218 rdf:type schema:CreativeWork
219 https://doi.org/10.2138/gsrmg.55.1.359 schema:sameAs https://app.dimensions.ai/details/publication/pub.1011222689
220 rdf:type schema:CreativeWork
221 https://doi.org/10.2343/geochemj.32.71 schema:sameAs https://app.dimensions.ai/details/publication/pub.1029955702
222 rdf:type schema:CreativeWork
223 https://doi.org/10.2475/ajs.255.4.306 schema:sameAs https://app.dimensions.ai/details/publication/pub.1070840028
224 rdf:type schema:CreativeWork
225 https://doi.org/10.2475/ajs.257.1.44 schema:sameAs https://app.dimensions.ai/details/publication/pub.1070840109
226 rdf:type schema:CreativeWork
227 https://doi.org/10.2475/ajs.286.7.540 schema:sameAs https://app.dimensions.ai/details/publication/pub.1070841866
228 rdf:type schema:CreativeWork
229 https://www.grid.ac/institutes/grid.14003.36 schema:alternateName University of Wisconsin–Madison
230 schema:name Department of Geology and Geophysics, University of Wisconsin-Madison, 1215 West Dayton Street, 53706, Madison, WI, USA
231 rdf:type schema:Organization
 




Preview window. Press ESC to close (or click here)


...