Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination
Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047...
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1975 |
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| Umfang: |
10 |
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Springer Online Journal Archives 1860-2002 |
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| Übergeordnetes Werk: |
in: Contributions to mineralogy and petrology - 1947, 49(1975) vom: Jan., Seite 39-48 |
| Übergeordnetes Werk: |
volume:49 ; year:1975 ; month:01 ; pages:39-48 ; extent:10 |
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| 245 | 1 | 0 | |a Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination |
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| 520 | |a Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. | ||
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(DE-627)NLEJ204107296 DE-627 ger DE-627 rakwb eng Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination 1975 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. Springer Online Journal Archives 1860-2002 Brueckner, Hannes K. oth in Contributions to mineralogy and petrology 1947 49(1975) vom: Jan., Seite 39-48 (DE-627)NLEJ188992375 (DE-600)1458979-5 1432-0967 nnns volume:49 year:1975 month:01 pages:39-48 extent:10 http://dx.doi.org/10.1007/BF00371077 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 49 1975 1 39-48 10 |
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(DE-627)NLEJ204107296 DE-627 ger DE-627 rakwb eng Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination 1975 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. Springer Online Journal Archives 1860-2002 Brueckner, Hannes K. oth in Contributions to mineralogy and petrology 1947 49(1975) vom: Jan., Seite 39-48 (DE-627)NLEJ188992375 (DE-600)1458979-5 1432-0967 nnns volume:49 year:1975 month:01 pages:39-48 extent:10 http://dx.doi.org/10.1007/BF00371077 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 49 1975 1 39-48 10 |
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(DE-627)NLEJ204107296 DE-627 ger DE-627 rakwb eng Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination 1975 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. Springer Online Journal Archives 1860-2002 Brueckner, Hannes K. oth in Contributions to mineralogy and petrology 1947 49(1975) vom: Jan., Seite 39-48 (DE-627)NLEJ188992375 (DE-600)1458979-5 1432-0967 nnns volume:49 year:1975 month:01 pages:39-48 extent:10 http://dx.doi.org/10.1007/BF00371077 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 49 1975 1 39-48 10 |
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(DE-627)NLEJ204107296 DE-627 ger DE-627 rakwb eng Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination 1975 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. Springer Online Journal Archives 1860-2002 Brueckner, Hannes K. oth in Contributions to mineralogy and petrology 1947 49(1975) vom: Jan., Seite 39-48 (DE-627)NLEJ188992375 (DE-600)1458979-5 1432-0967 nnns volume:49 year:1975 month:01 pages:39-48 extent:10 http://dx.doi.org/10.1007/BF00371077 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 49 1975 1 39-48 10 |
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(DE-627)NLEJ204107296 DE-627 ger DE-627 rakwb eng Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination 1975 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. Springer Online Journal Archives 1860-2002 Brueckner, Hannes K. oth in Contributions to mineralogy and petrology 1947 49(1975) vom: Jan., Seite 39-48 (DE-627)NLEJ188992375 (DE-600)1458979-5 1432-0967 nnns volume:49 year:1975 month:01 pages:39-48 extent:10 http://dx.doi.org/10.1007/BF00371077 GBV_USEFLAG_U ZDB-1-SOJ GBV_NL_ARTICLE AR 49 1975 1 39-48 10 |
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contact and fracture ultramafic assemblages from norway: rb-sr evidence for crustal contamination |
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Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination |
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Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. |
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Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. |
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Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ204107296</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706143256.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070528s1975 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ204107296</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Contact and fracture ultramafic assemblages from Norway: Rb-Sr evidence for crustal contamination</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1975</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">10</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Strontium isotopes are used as tracers of crustal contamination of alpine-type ultramafic rocks from the Basal Gneiss Complex of the Caledonides of southern Norway. Minerals from anhydrous assemblages that occur in the cores of these ultramafic lenses give Sr87/Sr86 ratios (0.7011 to 0.7047) that reflect the expected ambient Sr87/Sr86 conditions of the ancient upper mantle. Rb-Sr evidence for crustal contamination is found in hydrous assemblages that occur within fractures and around the margins of the ultramafio bodies. Olivine, enstatite, amphibole, and magnesite from these assemblages have present-day Sr87/Sr86 ratios (0.7049 to 0.7085) that are significantly higher than those of compositionally equivalent minerals from the interiors of the ultramafic bodies. The high Sr87/Sr86 values were acquired as a result of the reaction between the ultramafic rock and ion-charged hydrous solutions carrying strontium with the ambient Sr87/Sr86 ratio (around 0.713) of the enclosing country rook during the waning phases of the Caledonian Orogeny. Mineral separates from the interiors of these ultramafic bodies can yield useful information on the ancient upper mantle. Wholerock samples, however, will show some evidence of contamination from the crust as a result of the formation of at least trace amounts of secondary hydrous minerals. Most whole-rook Sr87/Sr86 ratios from alpine-type ultramafic rocks from other orogenic belts show evidence of this contamination.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Springer Online Journal Archives 1860-2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Brueckner, Hannes K.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Contributions to mineralogy and petrology</subfield><subfield code="d">1947</subfield><subfield code="g">49(1975) vom: Jan., Seite 39-48</subfield><subfield code="w">(DE-627)NLEJ188992375</subfield><subfield code="w">(DE-600)1458979-5</subfield><subfield code="x">1432-0967</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:49</subfield><subfield code="g">year:1975</subfield><subfield code="g">month:01</subfield><subfield code="g">pages:39-48</subfield><subfield code="g">extent:10</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://dx.doi.org/10.1007/BF00371077</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SOJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">49</subfield><subfield code="j">1975</subfield><subfield code="c">1</subfield><subfield code="h">39-48</subfield><subfield code="g">10</subfield></datafield></record></collection>
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