Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks
The Totalp-Platta-Malenco ophiolites in the Eastern Central Alps offer a unique opportunity to study the behaviour of Li, Be and B in ultramafic rocks in response to serpentinization and to progressive Alpine metamorphism. These units represent the remnants of a former ocean-continent transition tha...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2011
|
| In: |
Geochimica et cosmochimica acta
Year: 2011, Volume: 75, Issue: 5, Pages: 1249-1271 |
| ISSN: | 1872-9533 |
| DOI: | 10.1016/j.gca.2010.12.007 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.gca.2010.12.007 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S001670371000671X 
|
| Author Notes: | Flurin Vils, Othmar Müntener, Angelika Kalt, Thomas Ludwig |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1826612831 | ||
| 003 | DE-627 | ||
| 005 | 20230710100246.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 221208s2011 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.gca.2010.12.007 |2 doi | |
| 035 | |a (DE-627)1826612831 | ||
| 035 | |a (DE-599)KXP1826612831 | ||
| 035 | |a (OCoLC)1389741206 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 31 |2 sdnb | ||
| 100 | 1 | |a Vils, Flurin |e VerfasserIn |0 (DE-588)1274989388 |0 (DE-627)182661351X |4 aut | |
| 245 | 1 | 0 | |a Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks |c Flurin Vils, Othmar Müntener, Angelika Kalt, Thomas Ludwig |
| 264 | 1 | |c 2011 | |
| 300 | |a 23 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Erstmals am 11.Dezmber 2010 online veröffentlicht | ||
| 500 | |a Gesehen am 08.12.2022 | ||
| 520 | |a The Totalp-Platta-Malenco ophiolites in the Eastern Central Alps offer a unique opportunity to study the behaviour of Li, Be and B in ultramafic rocks in response to serpentinization and to progressive Alpine metamorphism. These units represent the remnants of a former ocean-continent transition that was intensely serpentinized during exposure on the Jurassic seafloor of the Ligurian Tethys. From north to the south, three isograd reactions (lizardite⇒antigorite+brucite;lizardite+talc⇒antigorite;lizardite+tremolite⇒antigorite+diopside) have been used to quantify the evolution of the light element content of metamorphic minerals. We determined the Li, Be and B concentrations in major silicate minerals from the ultramafic bodies of Totalp, Platta and Malenco by secondary ion mass spectrometry. Mantle minerals have Be concentrations (e.g. <0.001-0.009μg/g in olivine) similar to the metamorphic minerals that replace them (e.g. <0.001-0.016μg/g in serpentine). The mantle signature of Be is thus neither erased during seafloor alteration nor by progressive metamorphism from prehnite-pumpellyite to epidote-amphibolite facies. In contrast, the Li and B inventories of metamorphic minerals are related to the lizardite-to-antigorite transition. Both elements display higher concentrations in the low-temperature serpentine polymorph lizardite (max. 156μg/g Li, max. 318μg/g B) than in antigorite (max. 0.11μg/g Li, max. 12μg/g B). Calculated average B/Li ratios for lizardite (∼1395) and antigorite (∼115) indicate that Li fractionates from B during the lizardite-to-antigorite transition during prograde metamorphism in ultramafic rocks. In subduction zones, this signature is likely to be recorded in the B-rich nature of forearc fluids. Relative to oceanic mantle the Be content of mantle clinopyroxene is much higher, but similar to Be values from mantle xenoliths and subduction-related peridotite massifs. These data support previous hypothesis that the mantle rocks from the Eastern Central Alps have a subcontinental origin. We conclude that Be behaves conservatively during subduction metamorphism of ultramafic rocks, at least at low-temperature, and thus retains the fingerprint of ancient subduction-related igneous events in mantle peridotites. | ||
| 700 | 1 | |a Müntener, Othmar |e VerfasserIn |4 aut | |
| 700 | 1 | |a Kalt, Angelika |e VerfasserIn |4 aut | |
| 700 | 1 | |a Ludwig, Thomas |e VerfasserIn |0 (DE-588)1069798339 |0 (DE-627)822403471 |0 (DE-576)429492197 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Geochimica et cosmochimica acta |d New York, NY [u.a.] : Elsevier, 1950 |g 75(2011), 5, Seite 1249-1271 |h Online-Ressource |w (DE-627)300898797 |w (DE-600)1483679-8 |w (DE-576)120883465 |x 1872-9533 |7 nnas |a Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks |
| 773 | 1 | 8 | |g volume:75 |g year:2011 |g number:5 |g pages:1249-1271 |g extent:23 |a Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.gca.2010.12.007 |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 856 | 4 | 0 | |u https://www.sciencedirect.com/science/article/pii/S001670371000671X |x Verlag |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20221208 | ||
| 993 | |a Article | ||
| 994 | |a 2011 | ||
| 998 | |g 1069798339 |a Ludwig, Thomas |m 1069798339:Ludwig, Thomas |d 120000 |d 121000 |e 120000PL1069798339 |e 121000PL1069798339 |k 0/120000/ |k 1/120000/121000/ |p 4 |y j | ||
| 999 | |a KXP-PPN1826612831 |e 422848851X | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"person":[{"display":"Vils, Flurin","given":"Flurin","family":"Vils","role":"aut","roleDisplay":"VerfasserIn"},{"role":"aut","roleDisplay":"VerfasserIn","family":"Müntener","given":"Othmar","display":"Müntener, Othmar"},{"roleDisplay":"VerfasserIn","role":"aut","display":"Kalt, Angelika","given":"Angelika","family":"Kalt"},{"role":"aut","roleDisplay":"VerfasserIn","family":"Ludwig","given":"Thomas","display":"Ludwig, Thomas"}],"name":{"displayForm":["Flurin Vils, Othmar Müntener, Angelika Kalt, Thomas Ludwig"]},"physDesc":[{"extent":"23 S."}],"language":["eng"],"title":[{"title_sort":"Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks","title":"Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocks"}],"recId":"1826612831","note":["Erstmals am 11.Dezmber 2010 online veröffentlicht","Gesehen am 08.12.2022"],"origin":[{"dateIssuedDisp":"2011","dateIssuedKey":"2011"}],"relHost":[{"id":{"issn":["1872-9533"],"eki":["300898797"],"zdb":["1483679-8"]},"type":{"media":"Online-Ressource","bibl":"periodical"},"origin":[{"dateIssuedDisp":"1950-","dateIssuedKey":"1950","publisherPlace":"New York, NY [u.a.]","publisher":"Elsevier"}],"pubHistory":["1.1950/51 - 75.2011; Vol. 76.2012 -"],"part":{"extent":"23","volume":"75","pages":"1249-1271","year":"2011","issue":"5","text":"75(2011), 5, Seite 1249-1271"},"physDesc":[{"extent":"Online-Ressource"}],"disp":"Implications of the serpentine phase transition on the behaviour of beryllium and lithium-boron of subducted ultramafic rocksGeochimica et cosmochimica acta","note":["Gesehen am 02.12.24"],"corporate":[{"roleDisplay":"Herausgebendes Organ","role":"isb","display":"Geochemical Society"},{"display":"Meteoritical Society","roleDisplay":"Herausgebendes Organ","role":"isb"}],"recId":"300898797","title":[{"title":"Geochimica et cosmochimica acta","subtitle":"journal of the Geochemical Society and the Meteoritical Society","title_sort":"Geochimica et cosmochimica acta"}],"language":["eng"]}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"id":{"doi":["10.1016/j.gca.2010.12.007"],"eki":["1826612831"]}} | ||
| SRT | |a VILSFLURINIMPLICATIO2011 | ||